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Open-sourcing User Signal Service

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User Signal Service (USS) is a centralized online platform that supplies comprehensive data on user actions and behaviors on Twitter. This service stores information on both explicit signals, such as Favorites, Retweets, and replies, and implicit signals like Tweet clicks, profile visits, and more.
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# User Signal Service #
**User Signal Service** (USS) is a centralized online platform that supplies comprehensive data on user actions and behaviors on Twitter. This information encompasses both explicit signals, such as favoriting, retweeting, and replying, as well as implicit signals, including tweet clicks, video views, profile visits, and more.
To ensure consistency and accuracy, USS gathers these signals from various underlying datasets and online services, processing them into uniform formats. These standardized source signals are then utilized in candidate retrieval and machine learning features for ranking stages.

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jvm_binary(
name = "bin",
basename = "user-signal-service",
main = "com.twitter.usersignalservice.UserSignalServiceStratoFedServerMain",
runtime_platform = "java11",
tags = ["bazel-compatible"],
dependencies = [
"3rdparty/jvm/ch/qos/logback:logback-classic",
"loglens/loglens-logback/src/main/scala/com/twitter/loglens/logback",
"strato/src/main/scala/com/twitter/strato/logging/logback",
"user-signal-service/server/src/main/resources",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice",
],
)
# Aurora Workflows build phase convention requires a jvm_app named with ${project-name}-app
jvm_app(
name = "user-signal-service-app",
archive = "zip",
binary = ":bin",
)

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resources(
sources = [
"*.xml",
"*.yml",
"config/*.yml",
],
)

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test_value:
comment: Test Value
default_availability: 10000
dark_traffic_percent:
comment: Percentage of traffic to send to dark traffic destination
default_availability: 0

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<configuration>
<shutdownHook class="ch.qos.logback.core.hook.DelayingShutdownHook"/>
<property name="async_queue_size" value="${queue.size:-50000}"/>
<property name="async_max_flush_time" value="${max.flush.time:-0}"/>
<!-- ===================================================== -->
<!-- Structured Logging -->
<!-- ===================================================== -->
<!-- Only sample 0.1% of the requests -->
<property name="splunk_sampling_rate" value="${splunk_sampling_rate:-0.001}"/>
<include resource="structured-logger-logback.xml"/>
<!-- ===================================================== -->
<!-- Service Config -->
<!-- ===================================================== -->
<property name="DEFAULT_SERVICE_PATTERN"
value="%-16X{transactionId} %logger %msg"/>
<!-- ===================================================== -->
<!-- Common Config -->
<!-- ===================================================== -->
<!-- JUL/JDK14 to Logback bridge -->
<contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
<resetJUL>true</resetJUL>
</contextListener>
<!-- Service Log (Rollover every 50MB, max 11 logs) -->
<appender name="SERVICE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${log.service.output}</file>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>${log.service.output}.%i</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>10</maxIndex>
</rollingPolicy>
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>50MB</maxFileSize>
</triggeringPolicy>
<encoder>
<pattern>%date %.-3level ${DEFAULT_SERVICE_PATTERN}%n</pattern>
</encoder>
</appender>
<!-- Strato package only log (Rollover every 50MB, max 11 logs) -->
<appender name="STRATO-ONLY" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${log.strato_only.output}</file>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>${log.strato_only.output}.%i</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>10</maxIndex>
</rollingPolicy>
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>50MB</maxFileSize>
</triggeringPolicy>
<encoder>
<pattern>%date %.-3level ${DEFAULT_SERVICE_PATTERN}%n</pattern>
</encoder>
</appender>
<!-- LogLens -->
<appender name="LOGLENS" class="com.twitter.loglens.logback.LoglensAppender">
<mdcAdditionalContext>true</mdcAdditionalContext>
<category>loglens</category>
<index>${log.lens.index}</index>
<tag>${log.lens.tag}/service</tag>
<encoder>
<pattern>%msg%n</pattern>
</encoder>
<turboFilter class="ch.qos.logback.classic.turbo.DuplicateMessageFilter">
<cacheSize>500</cacheSize>
<allowedRepetitions>50</allowedRepetitions>
</turboFilter>
<filter class="com.twitter.strato.logging.logback.RegexFilter">
<forLogger>manhattan-client</forLogger>
<excludeRegex>.*InvalidRequest.*</excludeRegex>
</filter>
</appender>
<!-- ===================================================== -->
<!-- Primary Async Appenders -->
<!-- ===================================================== -->
<appender name="ASYNC-SERVICE" class="ch.qos.logback.classic.AsyncAppender">
<queueSize>${async_queue_size}</queueSize>
<maxFlushTime>${async_max_flush_time}</maxFlushTime>
<appender-ref ref="SERVICE"/>
</appender>
<appender name="ASYNC-STRATO-ONLY" class="ch.qos.logback.classic.AsyncAppender">
<queueSize>${async_queue_size}</queueSize>
<maxFlushTime>${async_max_flush_time}</maxFlushTime>
<appender-ref ref="STRATO-ONLY"/>
</appender>
<appender name="ASYNC-LOGLENS" class="ch.qos.logback.classic.AsyncAppender">
<queueSize>${async_queue_size}</queueSize>
<maxFlushTime>${async_max_flush_time}</maxFlushTime>
<appender-ref ref="LOGLENS"/>
</appender>
<!-- ===================================================== -->
<!-- Package Config -->
<!-- ===================================================== -->
<!-- Per-Package Config (shared) -->
<logger name="com.twitter" level="info"/>
<!--
By default, we leave the strato package at INFO level.
However, this line allows us to set the entire strato package, or a subset of it, to
a specific level. For example, if you pass -Dstrato_log_package=streaming -Dstrato_log_level=DEBUG
only loggers under com.twitter.strato.streaming.* will be set to DEBUG level. Passing only
-Dstrato_log_level will set all of strato.* to the specified level.
-->
<logger name="com.twitter.strato${strato_log_package:-}" level="${strato_log_level:-INFO}"/>
<logger name="com.twitter.wilyns" level="warn"/>
<logger name="com.twitter.finagle.mux" level="warn"/>
<logger name="com.twitter.finagle.serverset2" level="warn"/>
<logger name="com.twitter.logging.ScribeHandler" level="warn"/>
<logger name="com.twitter.zookeeper.client.internal" level="warn"/>
<logger name="com.twitter.decider.StoreDecider" level="warn"/>
<!-- Per-Package Config (Strato) -->
<logger name="com.twitter.distributedlog.client" level="warn"/>
<logger name="com.twitter.finagle.mtls.authorization.config.AccessControlListConfiguration" level="warn"/>
<logger name="com.twitter.finatra.kafka.common.kerberoshelpers" level="warn"/>
<logger name="com.twitter.finatra.kafka.utils.BootstrapServerUtils" level="warn"/>
<logger name="com.twitter.server.coordinate" level="error"/>
<logger name="com.twitter.zookeeper.client" level="info"/>
<logger name="org.apache.zookeeper" level="error"/>
<logger name="org.apache.zookeeper.ClientCnxn" level="warn"/>
<logger name="ZkSession" level="info"/>
<logger name="OptimisticLockingCache" level="off"/>
<logger name="manhattan-client" level="warn"/>
<logger name="strato.op" level="warn"/>
<logger name="org.apache.kafka.clients.NetworkClient" level="error"/>
<logger name="org.apache.kafka.clients.consumer.internals" level="error"/>
<logger name="org.apache.kafka.clients.producer.internals" level="error"/>
<!-- produce a lot of messages like: Building client authenticator with server name kafka -->
<logger name="org.apache.kafka.common.network" level="warn"/>
<!-- Root Config -->
<root level="${log_level:-INFO}">
<appender-ref ref="ASYNC-SERVICE"/>
<appender-ref ref="ASYNC-LOGLENS"/>
</root>
<!-- Strato package only logging-->
<logger name="com.twitter.strato"
level="info"
additivity="true">
<appender-ref ref="ASYNC-STRATO-ONLY" />
</logger>
</configuration>

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/BUILD Normal file
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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/columns",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/config",
],
)

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/UserSignalServiceStratoFedServerMain.scala Normal file
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package com.twitter.usersignalservice
import com.google.inject.Module
import com.twitter.inject.thrift.modules.ThriftClientIdModule
import com.twitter.usersignalservice.columns.UserSignalServiceColumn
import com.twitter.strato.fed._
import com.twitter.strato.fed.server._
import com.twitter.usersignalservice.module.CacheModule
import com.twitter.usersignalservice.module.MHMtlsParamsModule
import com.twitter.usersignalservice.module.SocialGraphServiceClientModule
import com.twitter.usersignalservice.module.TimerModule
object UserSignalServiceStratoFedServerMain extends UserSignalServiceStratoFedServer
trait UserSignalServiceStratoFedServer extends StratoFedServer {
override def dest: String = "/s/user-signal-service/user-signal-service"
override def columns: Seq[Class[_ <: StratoFed.Column]] =
Seq(
classOf[UserSignalServiceColumn]
)
override def modules: Seq[Module] =
Seq(
CacheModule,
MHMtlsParamsModule,
SocialGraphServiceClientModule,
ThriftClientIdModule,
TimerModule,
)
}

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package com.twitter.usersignalservice.base
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.frigate.common.base.Stats
import com.twitter.storehaus.ReadableStore
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.base.BaseSignalFetcher.Timeout
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
case class AggregatedSignalController(
signalsAggregationInfo: Seq[SignalAggregatedInfo],
signalsWeightMapInfo: Map[SignalType, Double],
stats: StatsReceiver,
timer: Timer)
extends ReadableStore[Query, Seq[Signal]] {
val name: String = this.getClass.getCanonicalName
val statsReceiver: StatsReceiver = stats.scope(name)
override def get(query: Query): Future[Option[Seq[Signal]]] = {
Stats
.trackItems(statsReceiver) {
val allSignalsFut =
Future
.collect(signalsAggregationInfo.map(_.getSignals(query.userId))).map(_.flatten.flatten)
val aggregatedSignals =
allSignalsFut.map { allSignals =>
allSignals
.groupBy(_.targetInternalId).collect {
case (Some(internalId), signals) =>
val mostRecentEnagementTime = signals.map(_.timestamp).max
val totalWeight =
signals
.map(signal => signalsWeightMapInfo.getOrElse(signal.signalType, 0.0)).sum
(Signal(query.signalType, mostRecentEnagementTime, Some(internalId)), totalWeight)
}.toSeq.sortBy { case (signal, weight) => (-weight, -signal.timestamp) }
.map(_._1)
.take(query.maxResults.getOrElse(Int.MaxValue))
}
aggregatedSignals.map(Some(_))
}.raiseWithin(Timeout)(timer).handle {
case e =>
statsReceiver.counter(e.getClass.getCanonicalName).incr()
Some(Seq.empty[Signal])
}
}
}
case class SignalAggregatedInfo(
signalType: SignalType,
signalFetcher: ReadableStore[Query, Seq[Signal]]) {
def getSignals(userId: UserId): Future[Option[Seq[Signal]]] = {
signalFetcher.get(Query(userId, signalType, None))
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base/BUILD Normal file
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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"3rdparty/src/jvm/com/twitter/storehaus:core",
"finagle/finagle-stats",
"frigate/frigate-common/src/main/scala/com/twitter/frigate/common/store",
"frigate/frigate-common/src/main/scala/com/twitter/frigate/common/store/strato",
"hermit/hermit-core/src/main/scala/com/twitter/hermit/store/common",
"relevance-platform/src/main/scala/com/twitter/relevance_platform/common/injection",
"src/scala/com/twitter/storehaus_internal/manhattan",
"src/scala/com/twitter/twistly/common",
"src/thrift/com/twitter/simclusters_v2:simclusters_v2-thrift-scala",
"user-signal-service/thrift/src/main/thrift:thrift-scala",
],
)

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base/BaseSignalFetcher.scala Normal file
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package com.twitter.usersignalservice
package base
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.storehaus.ReadableStore
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.util.Future
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.frigate.common.base.Stats
import com.twitter.conversions.DurationOps._
import com.twitter.usersignalservice.thriftscala.ClientIdentifier
import com.twitter.util.Duration
import com.twitter.util.Timer
import java.io.Serializable
case class Query(
userId: UserId,
signalType: SignalType,
maxResults: Option[Int],
clientId: ClientIdentifier = ClientIdentifier.Unknown)
/**
* A trait that defines a standard interface for the signal fetcher
*
* Extends this only when all other traits extending BaseSignalFetcher do not apply to
* your use case.
*/
trait BaseSignalFetcher extends ReadableStore[Query, Seq[Signal]] {
import BaseSignalFetcher._
/**
* This RawSignalType is the output type of `getRawSignals` and the input type of `process`.
* Override it as your own raw signal type to maintain meta data which can be used in the
* step of `process`.
* Note that the RawSignalType is an intermediate data type intended to be small to avoid
* big data chunks being passed over functions or being memcached.
*/
type RawSignalType <: Serializable
def name: String
def statsReceiver: StatsReceiver
def timer: Timer
/**
* This function is called by the top level class to fetch signals. It executes the pipeline to
* fetch raw signals, process and transform the signals. Exceptions and timeout control are
* handled here.
* @param query
* @return Future[Option[Seq[Signal]]]
*/
override def get(query: Query): Future[Option[Seq[Signal]]] = {
val clientStatsReceiver = statsReceiver.scope(query.clientId.name).scope(query.signalType.name)
Stats
.trackItems(clientStatsReceiver) {
val rawSignals = getRawSignals(query.userId)
val signals = process(query, rawSignals)
signals
}.raiseWithin(Timeout)(timer).handle {
case e =>
clientStatsReceiver.scope("FetcherExceptions").counter(e.getClass.getCanonicalName).incr()
EmptyResponse
}
}
/**
* Override this function to define how to fetch the raw signals from any store
* Note that the RawSignalType is an intermediate data type intended to be small to avoid
* big data chunks being passed over functions or being memcached.
* @param userId
* @return Future[Option[Seq[RawSignalType]]]
*/
def getRawSignals(userId: UserId): Future[Option[Seq[RawSignalType]]]
/**
* Override this function to define how to process the raw signals and transform them to signals.
* @param query
* @param rawSignals
* @return Future[Option[Seq[Signal]]]
*/
def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]]
}
object BaseSignalFetcher {
val Timeout: Duration = 20.milliseconds
val EmptyResponse: Option[Seq[Signal]] = Some(Seq.empty[Signal])
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base/FilteredSignalFetcherController.scala Normal file
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package com.twitter.usersignalservice.base
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.frigate.common.base.Stats
import com.twitter.storehaus.ReadableStore
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
/**
* Combine a BaseSignalFetcher with a map of negative signalFetchers. Filter out the negative
* signals from the signals from BaseSignalFetcher.
*/
case class FilteredSignalFetcherController(
backingSignalFetcher: BaseSignalFetcher,
originSignalType: SignalType,
stats: StatsReceiver,
timer: Timer,
filterSignalFetchers: Map[SignalType, BaseSignalFetcher] =
Map.empty[SignalType, BaseSignalFetcher])
extends ReadableStore[Query, Seq[Signal]] {
val statsReceiver: StatsReceiver = stats.scope(this.getClass.getCanonicalName)
override def get(query: Query): Future[Option[Seq[Signal]]] = {
val clientStatsReceiver = statsReceiver.scope(query.signalType.name).scope(query.clientId.name)
Stats
.trackItems(clientStatsReceiver) {
val backingSignals =
backingSignalFetcher.get(Query(query.userId, originSignalType, None, query.clientId))
val filteredSignals = filter(query, backingSignals)
filteredSignals
}.raiseWithin(BaseSignalFetcher.Timeout)(timer).handle {
case e =>
clientStatsReceiver.scope("FetcherExceptions").counter(e.getClass.getCanonicalName).incr()
BaseSignalFetcher.EmptyResponse
}
}
def filter(
query: Query,
rawSignals: Future[Option[Seq[Signal]]]
): Future[Option[Seq[Signal]]] = {
Stats
.trackItems(statsReceiver) {
val originSignals = rawSignals.map(_.getOrElse(Seq.empty[Signal]))
val filterSignals =
Future
.collect {
filterSignalFetchers.map {
case (signalType, signalFetcher) =>
signalFetcher
.get(Query(query.userId, signalType, None, query.clientId))
.map(_.getOrElse(Seq.empty))
}.toSeq
}.map(_.flatten.toSet)
val filterSignalsSet = filterSignals
.map(_.flatMap(_.targetInternalId))
val originSignalsWithId =
originSignals.map(_.map(signal => (signal, signal.targetInternalId)))
Future.join(originSignalsWithId, filterSignalsSet).map {
case (originSignalsWithId, filterSignalsSet) =>
Some(
originSignalsWithId
.collect {
case (signal, internalIdOpt)
if internalIdOpt.nonEmpty && !filterSignalsSet.contains(internalIdOpt.get) =>
signal
}.take(query.maxResults.getOrElse(Int.MaxValue)))
}
}
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base/ManhattanSignalFetcher.scala Normal file
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package com.twitter.usersignalservice
package base
import com.twitter.bijection.Codec
import com.twitter.storage.client.manhattan.kv.ManhattanKVClientMtlsParams
import com.twitter.storehaus.ReadableStore
import com.twitter.storehaus_internal.manhattan.ManhattanCluster
import com.twitter.storehaus_internal.manhattan.ManhattanRO
import com.twitter.storehaus_internal.manhattan.ManhattanROConfig
import com.twitter.storehaus_internal.util.HDFSPath
import com.twitter.twistly.common.UserId
import com.twitter.util.Future
import com.twitter.storehaus_internal.util.ApplicationID
import com.twitter.storehaus_internal.util.DatasetName
/**
* A Manhattan signal fetcher extending BaseSignalFetcher to provide an interface to fetch signals
* from a Manhattan dataset.
*
* Extends this when the underlying store is a single Manhattan dataset.
* @tparam ManhattanKeyType
* @tparam ManhattanValueType
*/
trait ManhattanSignalFetcher[ManhattanKeyType, ManhattanValueType] extends BaseSignalFetcher {
/*
Define the meta info of the Manhattan dataset
*/
protected def manhattanAppId: String
protected def manhattanDatasetName: String
protected def manhattanClusterId: ManhattanCluster
protected def manhattanKVClientMtlsParams: ManhattanKVClientMtlsParams
protected def manhattanKeyCodec: Codec[ManhattanKeyType]
protected def manhattanRawSignalCodec: Codec[ManhattanValueType]
/**
* Adaptor to transform the userId to the ManhattanKey
* @param userId
* @return ManhattanKeyType
*/
protected def toManhattanKey(userId: UserId): ManhattanKeyType
/**
* Adaptor to transform the ManhattanValue to the Seq of RawSignalType
* @param manhattanValue
* @return Seq[RawSignalType]
*/
protected def toRawSignals(manhattanValue: ManhattanValueType): Seq[RawSignalType]
protected final lazy val underlyingStore: ReadableStore[UserId, Seq[RawSignalType]] = {
ManhattanRO
.getReadableStoreWithMtls[ManhattanKeyType, ManhattanValueType](
ManhattanROConfig(
HDFSPath(""),
ApplicationID(manhattanAppId),
DatasetName(manhattanDatasetName),
manhattanClusterId),
manhattanKVClientMtlsParams
)(manhattanKeyCodec, manhattanRawSignalCodec)
.composeKeyMapping(userId => toManhattanKey(userId))
.mapValues(manhattanRawSignal => toRawSignals(manhattanRawSignal))
}
override final def getRawSignals(userId: UserId): Future[Option[Seq[RawSignalType]]] =
underlyingStore.get(userId)
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base/MemcachedSignalFetcherWrapper.scala Normal file
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package com.twitter.usersignalservice
package base
import com.twitter.finagle.memcached.{Client => MemcachedClient}
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.hashing.KeyHasher
import com.twitter.hermit.store.common.ObservedMemcachedReadableStore
import com.twitter.relevance_platform.common.injection.LZ4Injection
import com.twitter.relevance_platform.common.injection.SeqObjectInjection
import com.twitter.storehaus.ReadableStore
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.util.Duration
import com.twitter.util.Future
import com.twitter.util.Timer
/**
* Use this wrapper when the latency of the signal fetcher is too high (see BaseSignalFetcher.Timeout
* ) and the results from the signal fetcher don't change often (e.g. results are generated from a
* scalding job scheduled each day).
* @param memcachedClient
* @param baseSignalFetcher
* @param ttl
* @param stats
* @param timer
*/
case class MemcachedSignalFetcherWrapper(
memcachedClient: MemcachedClient,
baseSignalFetcher: BaseSignalFetcher,
ttl: Duration,
stats: StatsReceiver,
keyPrefix: String,
timer: Timer)
extends BaseSignalFetcher {
import MemcachedSignalFetcherWrapper._
override type RawSignalType = baseSignalFetcher.RawSignalType
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name).scope(baseSignalFetcher.name)
val underlyingStore: ReadableStore[UserId, Seq[RawSignalType]] = {
val cacheUnderlyingStore = new ReadableStore[UserId, Seq[RawSignalType]] {
override def get(userId: UserId): Future[Option[Seq[RawSignalType]]] =
baseSignalFetcher.getRawSignals(userId)
}
ObservedMemcachedReadableStore.fromCacheClient(
backingStore = cacheUnderlyingStore,
cacheClient = memcachedClient,
ttl = ttl)(
valueInjection = LZ4Injection.compose(SeqObjectInjection[RawSignalType]()),
statsReceiver = statsReceiver,
keyToString = { k: UserId =>
s"$keyPrefix:${keyHasher.hashKey(k.toString.getBytes)}"
}
)
}
override def getRawSignals(userId: UserId): Future[Option[Seq[RawSignalType]]] =
underlyingStore.get(userId)
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = baseSignalFetcher.process(query, rawSignals)
}
object MemcachedSignalFetcherWrapper {
private val keyHasher: KeyHasher = KeyHasher.FNV1A_64
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base/StratoSignalFetcher.scala Normal file
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package com.twitter.usersignalservice
package base
import com.twitter.frigate.common.store.strato.StratoFetchableStore
import com.twitter.storehaus.ReadableStore
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.twistly.common.UserId
import com.twitter.util.Future
/**
* A Strato signal fetcher extending BaseSignalFetcher to provide an interface to fetch signals from
* Strato Column.
*
* Extends this when the underlying store is a single Strato column.
* @tparam StratoKeyType
* @tparam StratoViewType
* @tparam StratoValueType
*/
trait StratoSignalFetcher[StratoKeyType, StratoViewType, StratoValueType]
extends BaseSignalFetcher {
/*
Define the meta info of the strato column
*/
def stratoClient: Client
def stratoColumnPath: String
def stratoView: StratoViewType
/**
* Override these vals and remove the implicit key words.
* @return
*/
protected implicit def keyConv: Conv[StratoKeyType]
protected implicit def viewConv: Conv[StratoViewType]
protected implicit def valueConv: Conv[StratoValueType]
/**
* Adapter to transform the userId to the StratoKeyType
* @param userId
* @return StratoKeyType
*/
protected def toStratoKey(userId: UserId): StratoKeyType
/**
* Adapter to transform the StratoValueType to a Seq of RawSignalType
* @param stratoValue
* @return Seq[RawSignalType]
*/
protected def toRawSignals(stratoValue: StratoValueType): Seq[RawSignalType]
protected final lazy val underlyingStore: ReadableStore[UserId, Seq[RawSignalType]] =
StratoFetchableStore
.withView[StratoKeyType, StratoViewType, StratoValueType](
stratoClient,
stratoColumnPath,
stratoView)
.composeKeyMapping(toStratoKey)
.mapValues(toRawSignals)
override final def getRawSignals(userId: UserId): Future[Option[Seq[RawSignalType]]] =
underlyingStore.get(userId)
}

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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"src/scala/com/twitter/twistly/common",
"strato/src/main/scala/com/twitter/strato/fed",
"strato/src/main/scala/com/twitter/strato/fed/server",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/service",
"user-signal-service/thrift/src/main/thrift:thrift-scala",
],
)

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package com.twitter.usersignalservice.columns
import com.twitter.stitch.NotFound
import com.twitter.stitch.Stitch
import com.twitter.strato.catalog.OpMetadata
import com.twitter.strato.catalog.Ops
import com.twitter.strato.config.Policy
import com.twitter.strato.config.ReadWritePolicy
import com.twitter.strato.data.Conv
import com.twitter.strato.data.Description
import com.twitter.strato.data.Lifecycle
import com.twitter.strato.fed.StratoFed
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.usersignalservice.service.UserSignalService
import com.twitter.usersignalservice.thriftscala.BatchSignalRequest
import com.twitter.usersignalservice.thriftscala.BatchSignalResponse
import javax.inject.Inject
class UserSignalServiceColumn @Inject() (userSignalService: UserSignalService)
extends StratoFed.Column(UserSignalServiceColumn.Path)
with StratoFed.Fetch.Stitch {
override val metadata: OpMetadata = OpMetadata(
lifecycle = Some(Lifecycle.Production),
description = Some(Description.PlainText("User Signal Service Federated Column")))
override def ops: Ops = super.ops
override type Key = BatchSignalRequest
override type View = Unit
override type Value = BatchSignalResponse
override val keyConv: Conv[Key] = ScroogeConv.fromStruct[BatchSignalRequest]
override val viewConv: Conv[View] = Conv.ofType
override val valueConv: Conv[Value] = ScroogeConv.fromStruct[BatchSignalResponse]
override def fetch(key: Key, view: View): Stitch[Result[Value]] = {
userSignalService
.userSignalServiceHandlerStoreStitch(key)
.map(result => found(result))
.handle {
case NotFound => missing
}
}
}
object UserSignalServiceColumn {
val Path = "recommendations/user-signal-service/signals"
}

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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals",
"user-signal-service/thrift/src/main/thrift:thrift-scala",
],
)

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package com.twitter.usersignalservice.config
import com.twitter.conversions.DurationOps._
import com.twitter.finagle.memcached.{Client => MemcachedClient}
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.storehaus.ReadableStore
import com.twitter.usersignalservice.base.BaseSignalFetcher
import com.twitter.usersignalservice.base.AggregatedSignalController
import com.twitter.usersignalservice.base.FilteredSignalFetcherController
import com.twitter.usersignalservice.base.MemcachedSignalFetcherWrapper
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.SignalAggregatedInfo
import com.twitter.usersignalservice.signals.AccountBlocksFetcher
import com.twitter.usersignalservice.signals.AccountFollowsFetcher
import com.twitter.usersignalservice.signals.AccountMutesFetcher
import com.twitter.usersignalservice.signals.NotificationOpenAndClickFetcher
import com.twitter.usersignalservice.signals.OriginalTweetsFetcher
import com.twitter.usersignalservice.signals.ProfileVisitsFetcher
import com.twitter.usersignalservice.signals.ProfileClickFetcher
import com.twitter.usersignalservice.signals.RealGraphOonFetcher
import com.twitter.usersignalservice.signals.ReplyTweetsFetcher
import com.twitter.usersignalservice.signals.RetweetsFetcher
import com.twitter.usersignalservice.signals.TweetClickFetcher
import com.twitter.usersignalservice.signals.TweetFavoritesFetcher
import com.twitter.usersignalservice.signals.TweetSharesFetcher
import com.twitter.usersignalservice.signals.VideoTweetsPlayback50Fetcher
import com.twitter.usersignalservice.signals.VideoTweetsQualityViewFetcher
import com.twitter.usersignalservice.signals.NegativeEngagedUserFetcher
import com.twitter.usersignalservice.signals.NegativeEngagedTweetFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
class SignalFetcherConfig @Inject() (
notificationOpenAndClickFetcher: NotificationOpenAndClickFetcher,
accountFollowsFetcher: AccountFollowsFetcher,
profileVisitsFetcher: ProfileVisitsFetcher,
tweetFavoritesFetcher: TweetFavoritesFetcher,
retweetsFetcher: RetweetsFetcher,
replyTweetsFetcher: ReplyTweetsFetcher,
originalTweetsFetcher: OriginalTweetsFetcher,
tweetSharesFetcher: TweetSharesFetcher,
memcachedClient: MemcachedClient,
realGraphOonFetcher: RealGraphOonFetcher,
tweetClickFetcher: TweetClickFetcher,
videoTweetsPlayback50Fetcher: VideoTweetsPlayback50Fetcher,
videoTweetsQualityViewFetcher: VideoTweetsQualityViewFetcher,
accountMutesFetcher: AccountMutesFetcher,
accountBlocksFetcher: AccountBlocksFetcher,
profileClickFetcher: ProfileClickFetcher,
negativeEngagedTweetFetcher: NegativeEngagedTweetFetcher,
negativeEngagedUserFetcher: NegativeEngagedUserFetcher,
statsReceiver: StatsReceiver,
timer: Timer) {
val MemcachedProfileVisitsFetcher: BaseSignalFetcher =
MemcachedSignalFetcherWrapper(
memcachedClient,
profileVisitsFetcher,
ttl = 8.hours,
statsReceiver,
keyPrefix = "uss:pv",
timer)
val MemcachedAccountFollowsFetcher: BaseSignalFetcher = MemcachedSignalFetcherWrapper(
memcachedClient,
accountFollowsFetcher,
ttl = 5.minute,
statsReceiver,
keyPrefix = "uss:af",
timer)
val GoodTweetClickDdgFetcher: SignalType => FilteredSignalFetcherController = signalType =>
FilteredSignalFetcherController(
tweetClickFetcher,
signalType,
statsReceiver,
timer,
Map(SignalType.NegativeEngagedTweetId -> negativeEngagedTweetFetcher)
)
val GoodProfileClickDdgFetcher: SignalType => FilteredSignalFetcherController = signalType =>
FilteredSignalFetcherController(
profileClickFetcher,
signalType,
statsReceiver,
timer,
Map(SignalType.NegativeEngagedUserId -> negativeEngagedUserFetcher)
)
val GoodProfileClickDdgFetcherWithBlocksMutes: SignalType => FilteredSignalFetcherController =
signalType =>
FilteredSignalFetcherController(
profileClickFetcher,
signalType,
statsReceiver,
timer,
Map(
SignalType.NegativeEngagedUserId -> negativeEngagedUserFetcher,
SignalType.AccountMute -> accountMutesFetcher,
SignalType.AccountBlock -> accountBlocksFetcher
)
)
val realGraphOonFilteredFetcher: FilteredSignalFetcherController =
FilteredSignalFetcherController(
realGraphOonFetcher,
SignalType.RealGraphOon,
statsReceiver,
timer,
Map(
SignalType.NegativeEngagedUserId -> negativeEngagedUserFetcher
)
)
val videoTweetsQualityViewFilteredFetcher: FilteredSignalFetcherController =
FilteredSignalFetcherController(
videoTweetsQualityViewFetcher,
SignalType.VideoView90dQualityV1,
statsReceiver,
timer,
Map(SignalType.NegativeEngagedTweetId -> negativeEngagedTweetFetcher)
)
val videoTweetsPlayback50FilteredFetcher: FilteredSignalFetcherController =
FilteredSignalFetcherController(
videoTweetsPlayback50Fetcher,
SignalType.VideoView90dPlayback50V1,
statsReceiver,
timer,
Map(SignalType.NegativeEngagedTweetId -> negativeEngagedTweetFetcher)
)
val uniformTweetSignalInfo: Seq[SignalAggregatedInfo] = Seq(
SignalAggregatedInfo(SignalType.TweetFavorite, tweetFavoritesFetcher),
SignalAggregatedInfo(SignalType.Retweet, retweetsFetcher),
SignalAggregatedInfo(SignalType.Reply, replyTweetsFetcher),
SignalAggregatedInfo(SignalType.OriginalTweet, originalTweetsFetcher),
SignalAggregatedInfo(SignalType.TweetShareV1, tweetSharesFetcher),
SignalAggregatedInfo(SignalType.VideoView90dQualityV1, videoTweetsQualityViewFilteredFetcher),
)
val uniformProducerSignalInfo: Seq[SignalAggregatedInfo] = Seq(
SignalAggregatedInfo(SignalType.AccountFollow, MemcachedAccountFollowsFetcher),
SignalAggregatedInfo(
SignalType.RepeatedProfileVisit90dMinVisit6V1,
MemcachedProfileVisitsFetcher),
)
val memcachedAccountBlocksFetcher: MemcachedSignalFetcherWrapper = MemcachedSignalFetcherWrapper(
memcachedClient,
accountBlocksFetcher,
ttl = 5.minutes,
statsReceiver,
keyPrefix = "uss:ab",
timer)
val memcachedAccountMutesFetcher: MemcachedSignalFetcherWrapper = MemcachedSignalFetcherWrapper(
memcachedClient,
accountMutesFetcher,
ttl = 5.minutes,
statsReceiver,
keyPrefix = "uss:am",
timer)
val SignalFetcherMapper: Map[SignalType, ReadableStore[Query, Seq[Signal]]] = Map(
/* Raw Signals */
SignalType.AccountFollow -> accountFollowsFetcher,
SignalType.AccountFollowWithDelay -> MemcachedAccountFollowsFetcher,
SignalType.GoodProfileClick -> GoodProfileClickDdgFetcher(SignalType.GoodProfileClick),
SignalType.GoodProfileClick20s -> GoodProfileClickDdgFetcher(SignalType.GoodProfileClick20s),
SignalType.GoodProfileClick30s -> GoodProfileClickDdgFetcher(SignalType.GoodProfileClick30s),
SignalType.GoodProfileClickFiltered -> GoodProfileClickDdgFetcherWithBlocksMutes(
SignalType.GoodProfileClick),
SignalType.GoodProfileClick20sFiltered -> GoodProfileClickDdgFetcherWithBlocksMutes(
SignalType.GoodProfileClick20s),
SignalType.GoodProfileClick30sFiltered -> GoodProfileClickDdgFetcherWithBlocksMutes(
SignalType.GoodProfileClick30s),
SignalType.GoodTweetClick -> GoodTweetClickDdgFetcher(SignalType.GoodTweetClick),
SignalType.GoodTweetClick5s -> GoodTweetClickDdgFetcher(SignalType.GoodTweetClick5s),
SignalType.GoodTweetClick10s -> GoodTweetClickDdgFetcher(SignalType.GoodTweetClick10s),
SignalType.GoodTweetClick30s -> GoodTweetClickDdgFetcher(SignalType.GoodTweetClick30s),
SignalType.NegativeEngagedTweetId -> negativeEngagedTweetFetcher,
SignalType.NegativeEngagedUserId -> negativeEngagedUserFetcher,
SignalType.NotificationOpenAndClickV1 -> notificationOpenAndClickFetcher,
SignalType.OriginalTweet -> originalTweetsFetcher,
SignalType.OriginalTweet90dV2 -> originalTweetsFetcher,
SignalType.RealGraphOon -> realGraphOonFilteredFetcher,
SignalType.RepeatedProfileVisit14dMinVisit2V1 -> MemcachedProfileVisitsFetcher,
SignalType.RepeatedProfileVisit14dMinVisit2V1NoNegative -> FilteredSignalFetcherController(
MemcachedProfileVisitsFetcher,
SignalType.RepeatedProfileVisit14dMinVisit2V1NoNegative,
statsReceiver,
timer,
Map(
SignalType.AccountMute -> accountMutesFetcher,
SignalType.AccountBlock -> accountBlocksFetcher)
),
SignalType.RepeatedProfileVisit90dMinVisit6V1 -> MemcachedProfileVisitsFetcher,
SignalType.RepeatedProfileVisit90dMinVisit6V1NoNegative -> FilteredSignalFetcherController(
MemcachedProfileVisitsFetcher,
SignalType.RepeatedProfileVisit90dMinVisit6V1NoNegative,
statsReceiver,
timer,
Map(
SignalType.AccountMute -> accountMutesFetcher,
SignalType.AccountBlock -> accountBlocksFetcher),
),
SignalType.RepeatedProfileVisit180dMinVisit6V1 -> MemcachedProfileVisitsFetcher,
SignalType.RepeatedProfileVisit180dMinVisit6V1NoNegative -> FilteredSignalFetcherController(
MemcachedProfileVisitsFetcher,
SignalType.RepeatedProfileVisit180dMinVisit6V1NoNegative,
statsReceiver,
timer,
Map(
SignalType.AccountMute -> accountMutesFetcher,
SignalType.AccountBlock -> accountBlocksFetcher),
),
SignalType.Reply -> replyTweetsFetcher,
SignalType.Reply90dV2 -> replyTweetsFetcher,
SignalType.Retweet -> retweetsFetcher,
SignalType.Retweet90dV2 -> retweetsFetcher,
SignalType.TweetFavorite -> tweetFavoritesFetcher,
SignalType.TweetFavorite90dV2 -> tweetFavoritesFetcher,
SignalType.TweetShareV1 -> tweetSharesFetcher,
SignalType.VideoView90dQualityV1 -> videoTweetsQualityViewFilteredFetcher,
SignalType.VideoView90dPlayback50V1 -> videoTweetsPlayback50FilteredFetcher,
/* Aggregated Signals */
SignalType.ProducerBasedUnifiedEngagementWeightedSignal -> AggregatedSignalController(
uniformProducerSignalInfo,
uniformProducerSignalEngagementAggregation,
statsReceiver,
timer
),
SignalType.TweetBasedUnifiedEngagementWeightedSignal -> AggregatedSignalController(
uniformTweetSignalInfo,
uniformTweetSignalEngagementAggregation,
statsReceiver,
timer
),
SignalType.AdFavorite -> tweetFavoritesFetcher,
/* Negative Signals */
SignalType.AccountBlock -> memcachedAccountBlocksFetcher,
SignalType.AccountMute -> memcachedAccountMutesFetcher,
SignalType.TweetDontLike -> negativeEngagedTweetFetcher,
SignalType.TweetReport -> negativeEngagedTweetFetcher,
SignalType.TweetSeeFewer -> negativeEngagedTweetFetcher,
)
}

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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"src/scala/com/twitter/twistly/common",
"src/scala/com/twitter/twistly/store",
"src/thrift/com/twitter/simclusters_v2:simclusters_v2-thrift-scala",
"strato/src/main/scala/com/twitter/strato/fed",
"strato/src/main/scala/com/twitter/strato/fed/server",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/config",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/module",
"user-signal-service/thrift/src/main/thrift:thrift-scala",
],
)

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/handler/UserSignalHandler.scala Normal file
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package com.twitter.usersignalservice.handler
import com.twitter.storehaus.ReadableStore
import com.twitter.usersignalservice.thriftscala.BatchSignalRequest
import com.twitter.usersignalservice.thriftscala.BatchSignalResponse
import com.twitter.util.Future
import com.twitter.conversions.DurationOps._
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.frigate.common.util.StatsUtil
import com.twitter.usersignalservice.config.SignalFetcherConfig
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.thriftscala.ClientIdentifier
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Duration
import com.twitter.util.Timer
import com.twitter.util.TimeoutException
class UserSignalHandler(
signalFetcherConfig: SignalFetcherConfig,
timer: Timer,
stats: StatsReceiver) {
import UserSignalHandler._
val statsReceiver: StatsReceiver = stats.scope("user-signal-service/service")
def getBatchSignalsResponse(request: BatchSignalRequest): Future[Option[BatchSignalResponse]] = {
StatsUtil.trackOptionStats(statsReceiver) {
val allSignals = request.signalRequest.map { signalRequest =>
signalFetcherConfig
.SignalFetcherMapper(signalRequest.signalType)
.get(Query(
userId = request.userId,
signalType = signalRequest.signalType,
maxResults = signalRequest.maxResults.map(_.toInt),
clientId = request.clientId.getOrElse(ClientIdentifier.Unknown)
))
.map(signalOpt => (signalRequest.signalType, signalOpt))
}
Future.collect(allSignals).map { signalsSeq =>
val signalsMap = signalsSeq.map {
case (signalType: SignalType, signalsOpt) =>
(signalType, signalsOpt.getOrElse(EmptySeq))
}.toMap
Some(BatchSignalResponse(signalsMap))
}
}
}
def toReadableStore: ReadableStore[BatchSignalRequest, BatchSignalResponse] = {
new ReadableStore[BatchSignalRequest, BatchSignalResponse] {
override def get(request: BatchSignalRequest): Future[Option[BatchSignalResponse]] = {
getBatchSignalsResponse(request).raiseWithin(UserSignalServiceTimeout)(timer).rescue {
case _: TimeoutException =>
statsReceiver.counter("endpointGetBatchSignals/failure/timeout").incr()
EmptyResponse
case e =>
statsReceiver.counter("endpointGetBatchSignals/failure/" + e.getClass.getName).incr()
EmptyResponse
}
}
}
}
}
object UserSignalHandler {
val UserSignalServiceTimeout: Duration = 25.milliseconds
val EmptySeq: Seq[Nothing] = Seq.empty
val EmptyResponse: Future[Option[BatchSignalResponse]] = Future.value(Some(BatchSignalResponse()))
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/module/BUILD Normal file
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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"finagle-internal/mtls/src/main/scala/com/twitter/finagle/mtls/authentication",
"finagle-internal/mtls/src/main/scala/com/twitter/finagle/mtls/client",
"finagle/finagle-core/src/main",
"finagle/finagle-stats",
"finagle/finagle-thrift/src/main/scala",
"hermit/hermit-core/src/main/scala/com/twitter/hermit/predicate/socialgraph",
"relevance-platform/src/main/scala/com/twitter/relevance_platform/common/injection",
"servo/service/src/main/scala",
"src/scala/com/twitter/storehaus_internal/manhattan2",
"src/scala/com/twitter/storehaus_internal/memcache",
"src/scala/com/twitter/storehaus_internal/util",
"src/scala/com/twitter/twistly/common",
"src/scala/com/twitter/twistly/store",
"src/thrift/com/twitter/socialgraph:thrift-scala",
"stitch/stitch-storehaus",
"strato/src/main/scala/com/twitter/strato/fed",
"strato/src/main/scala/com/twitter/strato/fed/server",
"util/util-core:scala",
"util/util-stats/src/main/scala",
],
)

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/module/CacheModule.scala Normal file
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package com.twitter.usersignalservice.module
import com.google.inject.Provides
import javax.inject.Singleton
import com.twitter.finagle.memcached.Client
import com.twitter.finagle.mtls.authentication.ServiceIdentifier
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.inject.TwitterModule
import com.twitter.conversions.DurationOps._
import com.twitter.storehaus_internal.memcache.MemcacheStore
import com.twitter.storehaus_internal.util.ZkEndPoint
import com.twitter.storehaus_internal.util.ClientName
object CacheModule extends TwitterModule {
private val cacheDest =
flag[String](name = "cache_module.dest", help = "Path to memcache service")
private val timeout =
flag[Int](name = "memcache.timeout", help = "Memcache client timeout")
@Singleton
@Provides
def providesCache(
serviceIdentifier: ServiceIdentifier,
stats: StatsReceiver
): Client =
MemcacheStore.memcachedClient(
name = ClientName("memcache_user_signal_service"),
dest = ZkEndPoint(cacheDest()),
timeout = timeout().milliseconds,
retries = 0,
statsReceiver = stats.scope("memcache"),
serviceIdentifier = serviceIdentifier
)
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/module/MHMtlsParamsModule.scala Normal file
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package com.twitter.usersignalservice.module
import com.twitter.finagle.mtls.authentication.ServiceIdentifier
import com.twitter.inject.TwitterModule
import com.twitter.storage.client.manhattan.kv.ManhattanKVClientMtlsParams
import com.google.inject.Provides
import javax.inject.Singleton
object MHMtlsParamsModule extends TwitterModule {
@Singleton
@Provides
def providesManhattanMtlsParams(
serviceIdentifier: ServiceIdentifier
): ManhattanKVClientMtlsParams = {
ManhattanKVClientMtlsParams(serviceIdentifier)
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/module/SocialGraphServiceClientModule.scala Normal file
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package com.twitter.usersignalservice.module
import com.twitter.inject.Injector
import com.twitter.conversions.DurationOps._
import com.twitter.finagle._
import com.twitter.finagle.mux.ClientDiscardedRequestException
import com.twitter.finagle.service.ReqRep
import com.twitter.finagle.service.ResponseClass
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.finatra.mtls.thriftmux.modules.MtlsClient
import com.twitter.inject.thrift.modules.ThriftMethodBuilderClientModule
import com.twitter.util.Duration
import com.twitter.util.Throw
import com.twitter.socialgraph.thriftscala.SocialGraphService
object SocialGraphServiceClientModule
extends ThriftMethodBuilderClientModule[
SocialGraphService.ServicePerEndpoint,
SocialGraphService.MethodPerEndpoint
]
with MtlsClient {
override val label = "socialgraph"
override val dest = "/s/socialgraph/socialgraph"
override val requestTimeout: Duration = 30.milliseconds
override def configureThriftMuxClient(
injector: Injector,
client: ThriftMux.Client
): ThriftMux.Client = {
super
.configureThriftMuxClient(injector, client)
.withStatsReceiver(injector.instance[StatsReceiver].scope("clnt"))
.withSessionQualifier
.successRateFailureAccrual(successRate = 0.9, window = 30.seconds)
.withResponseClassifier {
case ReqRep(_, Throw(_: ClientDiscardedRequestException)) => ResponseClass.Ignorable
}
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/module/TimerModule.scala Normal file
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package com.twitter.usersignalservice.module
import com.google.inject.Provides
import com.twitter.finagle.util.DefaultTimer
import com.twitter.inject.TwitterModule
import com.twitter.util.Timer
import javax.inject.Singleton
object TimerModule extends TwitterModule {
@Singleton
@Provides
def providesTimer: Timer = DefaultTimer
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/service/BUILD Normal file
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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"stitch/stitch-storehaus",
"strato/src/main/scala/com/twitter/strato/fed",
"strato/src/main/scala/com/twitter/strato/fed/server",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/config",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/handler",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/module",
"user-signal-service/thrift/src/main/thrift:thrift-scala",
],
)

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/service/UserSignalService.scala Normal file
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package com.twitter.usersignalservice
package service
import com.google.inject.Inject
import com.google.inject.Singleton
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.stitch.storehaus.StitchOfReadableStore
import com.twitter.usersignalservice.config.SignalFetcherConfig
import com.twitter.usersignalservice.handler.UserSignalHandler
import com.twitter.usersignalservice.thriftscala.BatchSignalRequest
import com.twitter.usersignalservice.thriftscala.BatchSignalResponse
import com.twitter.util.Timer
@Singleton
class UserSignalService @Inject() (
signalFetcherConfig: SignalFetcherConfig,
timer: Timer,
stats: StatsReceiver) {
private val userSignalHandler =
new UserSignalHandler(signalFetcherConfig, timer, stats)
val userSignalServiceHandlerStoreStitch: BatchSignalRequest => com.twitter.stitch.Stitch[
BatchSignalResponse
] = StitchOfReadableStore(userSignalHandler.toReadableStore)
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/AccountBlocksFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.socialgraph.thriftscala.RelationshipType
import com.twitter.socialgraph.thriftscala.SocialGraphService
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.base.BaseSignalFetcher
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.signals.common.SGSUtils
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class AccountBlocksFetcher @Inject() (
sgsClient: SocialGraphService.MethodPerEndpoint,
timer: Timer,
stats: StatsReceiver)
extends BaseSignalFetcher {
override type RawSignalType = Signal
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(this.name)
override def getRawSignals(
userId: UserId
): Future[Option[Seq[RawSignalType]]] = {
SGSUtils.getSGSRawSignals(userId, sgsClient, RelationshipType.Blocking, SignalType.AccountBlock)
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map(_.map(_.take(query.maxResults.getOrElse(Int.MaxValue))))
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/AccountFollowsFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.socialgraph.thriftscala.RelationshipType
import com.twitter.socialgraph.thriftscala.SocialGraphService
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.base.BaseSignalFetcher
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.signals.common.SGSUtils
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class AccountFollowsFetcher @Inject() (
sgsClient: SocialGraphService.MethodPerEndpoint,
timer: Timer,
stats: StatsReceiver)
extends BaseSignalFetcher {
override type RawSignalType = Signal
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(this.name)
override def getRawSignals(
userId: UserId
): Future[Option[Seq[RawSignalType]]] = {
SGSUtils.getSGSRawSignals(
userId,
sgsClient,
RelationshipType.Following,
SignalType.AccountFollow)
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map(_.map(_.take(query.maxResults.getOrElse(Int.MaxValue))))
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/AccountMutesFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.socialgraph.thriftscala.RelationshipType
import com.twitter.socialgraph.thriftscala.SocialGraphService
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.base.BaseSignalFetcher
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.signals.common.SGSUtils
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class AccountMutesFetcher @Inject() (
sgsClient: SocialGraphService.MethodPerEndpoint,
timer: Timer,
stats: StatsReceiver)
extends BaseSignalFetcher {
override type RawSignalType = Signal
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(this.name)
override def getRawSignals(
userId: UserId
): Future[Option[Seq[RawSignalType]]] = {
SGSUtils.getSGSRawSignals(userId, sgsClient, RelationshipType.Muting, SignalType.AccountMute)
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map(_.map(_.take(query.maxResults.getOrElse(Int.MaxValue))))
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/BUILD Normal file
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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"3rdparty/jvm/com/twitter/bijection:scrooge",
"3rdparty/jvm/javax/inject:javax.inject",
"3rdparty/src/jvm/com/twitter/storehaus:core",
"discovery-ds/src/main/thrift/com/twitter/dds/jobs/repeated_profile_visits:profile_visit-scala",
"flock-client/src/main/thrift:thrift-scala",
"frigate/frigate-common/src/main/scala/com/twitter/frigate/common/store/strato",
"hermit/hermit-core/src/main/scala/com/twitter/hermit/predicate/socialgraph",
"src/scala/com/twitter/scalding_internal/job",
"src/scala/com/twitter/simclusters_v2/common",
"src/scala/com/twitter/storehaus_internal/manhattan",
"src/scala/com/twitter/storehaus_internal/manhattan/config",
"src/scala/com/twitter/storehaus_internal/manhattan2",
"src/scala/com/twitter/storehaus_internal/offline",
"src/scala/com/twitter/storehaus_internal/util",
"src/scala/com/twitter/twistly/common",
"src/thrift/com/twitter/experiments/general_metrics:general_metrics-scala",
"src/thrift/com/twitter/frigate/data_pipeline:frigate-user-history-thrift-scala",
"src/thrift/com/twitter/onboarding/relevance/tweet_engagement:tweet_engagement-scala",
"src/thrift/com/twitter/simclusters_v2:simclusters_v2-thrift-scala",
"src/thrift/com/twitter/socialgraph:thrift-scala",
"src/thrift/com/twitter/traffic_attribution:traffic_attribution-scala",
"strato/src/main/scala/com/twitter/strato/client",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/base",
"user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/common",
"user-signal-service/thrift/src/main/thrift:thrift-scala",
"util/util-core:util-core-util",
"util/util-core/src/main/java/com/twitter/util",
"util/util-stats/src/main/scala/com/twitter/finagle/stats",
],
)

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/NegativeEngagedTweetFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.thriftscala.RecentNegativeEngagedTweet
import com.twitter.twistly.thriftscala.TweetNegativeEngagementType
import com.twitter.twistly.thriftscala.UserRecentNegativeEngagedTweets
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class NegativeEngagedTweetFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, UserRecentNegativeEngagedTweets] {
import NegativeEngagedTweetFetcher._
override type RawSignalType = RecentNegativeEngagedTweet
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String = stratoPath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentNegativeEngagedTweets] =
ScroogeConv.fromStruct[UserRecentNegativeEngagedTweets]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, defaultVersion)
override protected def toRawSignals(
stratoValue: UserRecentNegativeEngagedTweets
): Seq[RecentNegativeEngagedTweet] = {
stratoValue.recentNegativeEngagedTweets
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[RecentNegativeEngagedTweet]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map { signals =>
signals
.filter(signal => negativeEngagedTweetTypeFilter(query.signalType, signal))
.map { signal =>
Signal(
query.signalType,
signal.engagedAt,
Some(InternalId.TweetId(signal.tweetId))
)
}
.groupBy(_.targetInternalId) // groupBy if there's duplicated authorIds
.mapValues(_.maxBy(_.timestamp))
.values
.toSeq
.sortBy(-_.timestamp)
.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
}
object NegativeEngagedTweetFetcher {
val stratoPath = "recommendations/twistly/userRecentNegativeEngagedTweets"
private val defaultVersion = 0L
private def negativeEngagedTweetTypeFilter(
signalType: SignalType,
signal: RecentNegativeEngagedTweet
): Boolean = {
signalType match {
case SignalType.TweetDontLike =>
signal.engagementType == TweetNegativeEngagementType.DontLike
case SignalType.TweetSeeFewer =>
signal.engagementType == TweetNegativeEngagementType.SeeFewer
case SignalType.TweetReport =>
signal.engagementType == TweetNegativeEngagementType.ReportClick
case SignalType.NegativeEngagedTweetId => true
case _ => false
}
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/NegativeEngagedUserFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.thriftscala.RecentNegativeEngagedTweet
import com.twitter.twistly.thriftscala.UserRecentNegativeEngagedTweets
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class NegativeEngagedUserFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, UserRecentNegativeEngagedTweets] {
import NegativeEngagedUserFetcher._
override type RawSignalType = RecentNegativeEngagedTweet
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String = stratoPath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentNegativeEngagedTweets] =
ScroogeConv.fromStruct[UserRecentNegativeEngagedTweets]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, defaultVersion)
override protected def toRawSignals(
stratoValue: UserRecentNegativeEngagedTweets
): Seq[RecentNegativeEngagedTweet] = {
stratoValue.recentNegativeEngagedTweets
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[RecentNegativeEngagedTweet]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map { signals =>
signals
.map { e =>
Signal(
defaultNegativeSignalType,
e.engagedAt,
Some(InternalId.UserId(e.authorId))
)
}
.groupBy(_.targetInternalId) // groupBy if there's duplicated authorIds
.mapValues(_.maxBy(_.timestamp))
.values
.toSeq
.sortBy(-_.timestamp)
}
}
}
}
object NegativeEngagedUserFetcher {
val stratoPath = "recommendations/twistly/userRecentNegativeEngagedTweets"
private val defaultVersion = 0L
private val defaultNegativeSignalType = SignalType.NegativeEngagedUserId
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/NotificationOpenAndClickFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.frigate.common.store.strato.StratoFetchableStore
import com.twitter.frigate.data_pipeline.candidate_generation.thriftscala.ClientEngagementEvent
import com.twitter.frigate.data_pipeline.candidate_generation.thriftscala.LatestEvents
import com.twitter.frigate.data_pipeline.candidate_generation.thriftscala.LatestNegativeEngagementEvents
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.storehaus.ReadableStore
import com.twitter.strato.client.Client
import com.twitter.twistly.common.TweetId
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.base.BaseSignalFetcher
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class NotificationOpenAndClickFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends BaseSignalFetcher {
import NotificationOpenAndClickFetcher._
override type RawSignalType = ClientEngagementEvent
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(this.name)
private val latestEventsStore: ReadableStore[UserId, LatestEvents] = {
StratoFetchableStore
.withUnitView[UserId, LatestEvents](stratoClient, latestEventStoreColumn)
}
private val notificationNegativeEngagementStore: ReadableStore[UserId, Seq[
NotificationNegativeEngagement
]] = {
StratoFetchableStore
.withUnitView[UserId, LatestNegativeEngagementEvents](
stratoClient,
labeledPushRecsNegativeEngagementsColumn).mapValues(fromLatestNegativeEngagementEvents)
}
override def getRawSignals(
userId: UserId
): Future[Option[Seq[RawSignalType]]] = {
val notificationNegativeEngagementEventsFut =
notificationNegativeEngagementStore.get(userId)
val latestEventsFut = latestEventsStore.get(userId)
Future
.join(latestEventsFut, notificationNegativeEngagementEventsFut).map {
case (latestEventsOpt, latestNegativeEngagementEventsOpt) =>
latestEventsOpt.map { latestEvents =>
// Negative Engagement Events Filter
filterNegativeEngagementEvents(
latestEvents.engagementEvents,
latestNegativeEngagementEventsOpt.getOrElse(Seq.empty),
statsReceiver.scope("filterNegativeEngagementEvents"))
}
}
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map {
_.take(query.maxResults.getOrElse(Int.MaxValue)).map { clientEngagementEvent =>
Signal(
SignalType.NotificationOpenAndClickV1,
timestamp = clientEngagementEvent.timestampMillis,
targetInternalId = Some(InternalId.TweetId(clientEngagementEvent.tweetId))
)
}
}
}
}
}
object NotificationOpenAndClickFetcher {
private val latestEventStoreColumn = "frigate/magicrecs/labeledPushRecsAggregated.User"
private val labeledPushRecsNegativeEngagementsColumn =
"frigate/magicrecs/labeledPushRecsNegativeEngagements.User"
case class NotificationNegativeEngagement(
tweetId: TweetId,
timestampMillis: Long,
isNtabDisliked: Boolean,
isReportTweetClicked: Boolean,
isReportTweetDone: Boolean,
isReportUserClicked: Boolean,
isReportUserDone: Boolean)
def fromLatestNegativeEngagementEvents(
latestNegativeEngagementEvents: LatestNegativeEngagementEvents
): Seq[NotificationNegativeEngagement] = {
latestNegativeEngagementEvents.negativeEngagementEvents.map { event =>
NotificationNegativeEngagement(
event.tweetId,
event.timestampMillis,
event.isNtabDisliked.getOrElse(false),
event.isReportTweetClicked.getOrElse(false),
event.isReportTweetDone.getOrElse(false),
event.isReportUserClicked.getOrElse(false),
event.isReportUserDone.getOrElse(false)
)
}
}
private def filterNegativeEngagementEvents(
engagementEvents: Seq[ClientEngagementEvent],
negativeEvents: Seq[NotificationNegativeEngagement],
statsReceiver: StatsReceiver
): Seq[ClientEngagementEvent] = {
if (negativeEvents.nonEmpty) {
statsReceiver.counter("filterNegativeEngagementEvents").incr()
statsReceiver.stat("eventSizeBeforeFilter").add(engagementEvents.size)
val negativeEngagementIdSet =
negativeEvents.collect {
case event
if event.isNtabDisliked || event.isReportTweetClicked || event.isReportTweetDone || event.isReportUserClicked || event.isReportUserDone =>
event.tweetId
}.toSet
// negative event size
statsReceiver.stat("negativeEventsSize").add(negativeEngagementIdSet.size)
// filter out negative engagement sources
val result = engagementEvents.filterNot { event =>
negativeEngagementIdSet.contains(event.tweetId)
}
statsReceiver.stat("eventSizeAfterFilter").add(result.size)
result
} else engagementEvents
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/OriginalTweetsFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.common.TwistlyProfile
import com.twitter.twistly.thriftscala.EngagementMetadata.OriginalTweetMetadata
import com.twitter.twistly.thriftscala.RecentEngagedTweet
import com.twitter.twistly.thriftscala.UserRecentEngagedTweets
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class OriginalTweetsFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, UserRecentEngagedTweets] {
import OriginalTweetsFetcher._
override type RawSignalType = RecentEngagedTweet
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String =
TwistlyProfile.TwistlyProdProfile.userRecentEngagedStorePath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentEngagedTweets] =
ScroogeConv.fromStruct[UserRecentEngagedTweets]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, DefaultVersion)
override protected def toRawSignals(
userRecentEngagedTweets: UserRecentEngagedTweets
): Seq[RawSignalType] =
userRecentEngagedTweets.recentEngagedTweets
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map { signals =>
val lookBackWindowFilteredSignals =
SignalFilter.lookBackWindow90DayFilter(signals, query.signalType)
lookBackWindowFilteredSignals
.collect {
case RecentEngagedTweet(tweetId, engagedAt, _: OriginalTweetMetadata, _) =>
Signal(query.signalType, engagedAt, Some(InternalId.TweetId(tweetId)))
}.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
}
object OriginalTweetsFetcher {
// see com.twitter.twistly.store.UserRecentEngagedTweetsStore
private val DefaultVersion = 0
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/ProfileClickFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.thriftscala.RecentProfileClickImpressEvents
import com.twitter.twistly.thriftscala.ProfileClickImpressEvent
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class ProfileClickFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, RecentProfileClickImpressEvents] {
import ProfileClickFetcher._
override type RawSignalType = ProfileClickImpressEvent
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String = stratoPath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[RecentProfileClickImpressEvents] =
ScroogeConv.fromStruct[RecentProfileClickImpressEvents]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, defaultVersion)
override protected def toRawSignals(
stratoValue: RecentProfileClickImpressEvents
): Seq[ProfileClickImpressEvent] = {
stratoValue.events
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[ProfileClickImpressEvent]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map { events =>
events
.map { clicks =>
clicks
.filter(dwelltimeFilter(_, query.signalType))
.map(signalFromProfileClick(_, query.signalType))
.sortBy(-_.timestamp)
.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
}
object ProfileClickFetcher {
val stratoPath = "recommendations/twistly/userRecentProfileClickImpress"
private val defaultVersion = 0L
private val sec2millis: Int => Long = i => i * 1000L
private val minDwellTimeMap: Map[SignalType, Long] = Map(
SignalType.GoodProfileClick -> sec2millis(10),
SignalType.GoodProfileClick20s -> sec2millis(20),
SignalType.GoodProfileClick30s -> sec2millis(30),
SignalType.GoodProfileClickFiltered -> sec2millis(10),
SignalType.GoodProfileClick20sFiltered -> sec2millis(20),
SignalType.GoodProfileClick30sFiltered -> sec2millis(30),
)
def signalFromProfileClick(
profileClickImpressEvent: ProfileClickImpressEvent,
signalType: SignalType
): Signal = {
Signal(
signalType,
profileClickImpressEvent.engagedAt,
Some(InternalId.UserId(profileClickImpressEvent.entityId))
)
}
def dwelltimeFilter(
profileClickImpressEvent: ProfileClickImpressEvent,
signalType: SignalType
): Boolean = {
val goodClickDwellTime = minDwellTimeMap(signalType)
profileClickImpressEvent.clickImpressEventMetadata.totalDwellTime >= goodClickDwellTime
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/ProfileVisitsFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.bijection.Codec
import com.twitter.bijection.scrooge.BinaryScalaCodec
import com.twitter.dds.jobs.repeated_profile_visits.thriftscala.ProfileVisitSet
import com.twitter.dds.jobs.repeated_profile_visits.thriftscala.ProfileVisitorInfo
import com.twitter.experiments.general_metrics.thriftscala.IdType
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.storage.client.manhattan.kv.ManhattanKVClientMtlsParams
import com.twitter.storehaus_internal.manhattan.Apollo
import com.twitter.storehaus_internal.manhattan.ManhattanCluster
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.base.ManhattanSignalFetcher
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
case class ProfileVisitMetadata(
targetId: Option[Long],
totalTargetVisitsInLast14Days: Option[Int],
totalTargetVisitsInLast90Days: Option[Int],
totalTargetVisitsInLast180Days: Option[Int],
latestTargetVisitTimestampInLast90Days: Option[Long])
@Singleton
case class ProfileVisitsFetcher @Inject() (
manhattanKVClientMtlsParams: ManhattanKVClientMtlsParams,
timer: Timer,
stats: StatsReceiver)
extends ManhattanSignalFetcher[ProfileVisitorInfo, ProfileVisitSet] {
import ProfileVisitsFetcher._
override type RawSignalType = ProfileVisitMetadata
override val manhattanAppId: String = MHAppId
override val manhattanDatasetName: String = MHDatasetName
override val manhattanClusterId: ManhattanCluster = Apollo
override val manhattanKeyCodec: Codec[ProfileVisitorInfo] = BinaryScalaCodec(ProfileVisitorInfo)
override val manhattanRawSignalCodec: Codec[ProfileVisitSet] = BinaryScalaCodec(ProfileVisitSet)
override protected def toManhattanKey(userId: UserId): ProfileVisitorInfo =
ProfileVisitorInfo(userId, IdType.User)
override protected def toRawSignals(manhattanValue: ProfileVisitSet): Seq[ProfileVisitMetadata] =
manhattanValue.profileVisitSet
.map {
_.collect {
// only keep the Non-NSFW and not-following profile visits
case profileVisit
if profileVisit.targetId.nonEmpty
// The below check covers 180 days, not only 90 days as the name implies.
// See comment on [[ProfileVisit.latestTargetVisitTimestampInLast90Days]] thrift.
&& profileVisit.latestTargetVisitTimestampInLast90Days.nonEmpty
&& !profileVisit.isTargetNSFW.getOrElse(false)
&& !profileVisit.doesSourceIdFollowTargetId.getOrElse(false) =>
ProfileVisitMetadata(
targetId = profileVisit.targetId,
totalTargetVisitsInLast14Days = profileVisit.totalTargetVisitsInLast14Days,
totalTargetVisitsInLast90Days = profileVisit.totalTargetVisitsInLast90Days,
totalTargetVisitsInLast180Days = profileVisit.totalTargetVisitsInLast180Days,
latestTargetVisitTimestampInLast90Days =
profileVisit.latestTargetVisitTimestampInLast90Days
)
}.toSeq
}.getOrElse(Seq.empty)
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override def process(
query: Query,
rawSignals: Future[Option[Seq[ProfileVisitMetadata]]]
): Future[Option[Seq[Signal]]] = rawSignals.map { profiles =>
profiles
.map {
_.filter(profileVisitMetadata => visitCountFilter(profileVisitMetadata, query.signalType))
.sortBy(profileVisitMetadata =>
-visitCountMap(query.signalType)(profileVisitMetadata).getOrElse(0))
.map(profileVisitMetadata =>
signalFromProfileVisit(profileVisitMetadata, query.signalType))
.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
object ProfileVisitsFetcher {
private val MHAppId = "repeated_profile_visits_aggregated"
private val MHDatasetName = "repeated_profile_visits_aggregated"
private val minVisitCountMap: Map[SignalType, Int] = Map(
SignalType.RepeatedProfileVisit14dMinVisit2V1 -> 2,
SignalType.RepeatedProfileVisit14dMinVisit2V1NoNegative -> 2,
SignalType.RepeatedProfileVisit90dMinVisit6V1 -> 6,
SignalType.RepeatedProfileVisit90dMinVisit6V1NoNegative -> 6,
SignalType.RepeatedProfileVisit180dMinVisit6V1 -> 6,
SignalType.RepeatedProfileVisit180dMinVisit6V1NoNegative -> 6
)
private val visitCountMap: Map[SignalType, ProfileVisitMetadata => Option[Int]] = Map(
SignalType.RepeatedProfileVisit14dMinVisit2V1 ->
((profileVisitMetadata: ProfileVisitMetadata) =>
profileVisitMetadata.totalTargetVisitsInLast14Days),
SignalType.RepeatedProfileVisit14dMinVisit2V1NoNegative ->
((profileVisitMetadata: ProfileVisitMetadata) =>
profileVisitMetadata.totalTargetVisitsInLast14Days),
SignalType.RepeatedProfileVisit90dMinVisit6V1 ->
((profileVisitMetadata: ProfileVisitMetadata) =>
profileVisitMetadata.totalTargetVisitsInLast90Days),
SignalType.RepeatedProfileVisit90dMinVisit6V1NoNegative ->
((profileVisitMetadata: ProfileVisitMetadata) =>
profileVisitMetadata.totalTargetVisitsInLast90Days),
SignalType.RepeatedProfileVisit180dMinVisit6V1 ->
((profileVisitMetadata: ProfileVisitMetadata) =>
profileVisitMetadata.totalTargetVisitsInLast180Days),
SignalType.RepeatedProfileVisit180dMinVisit6V1NoNegative ->
((profileVisitMetadata: ProfileVisitMetadata) =>
profileVisitMetadata.totalTargetVisitsInLast180Days)
)
def signalFromProfileVisit(
profileVisitMetadata: ProfileVisitMetadata,
signalType: SignalType
): Signal = {
Signal(
signalType,
profileVisitMetadata.latestTargetVisitTimestampInLast90Days.get,
profileVisitMetadata.targetId.map(targetId => InternalId.UserId(targetId))
)
}
def visitCountFilter(
profileVisitMetadata: ProfileVisitMetadata,
signalType: SignalType
): Boolean = {
visitCountMap(signalType)(profileVisitMetadata).exists(_ >= minVisitCountMap(signalType))
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/RealGraphOonFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.usersignalservice.base.Query
import com.twitter.wtf.candidate.thriftscala.CandidateSeq
import com.twitter.wtf.candidate.thriftscala.Candidate
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class RealGraphOonFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[UserId, Unit, CandidateSeq] {
import RealGraphOonFetcher._
override type RawSignalType = Candidate
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String = RealGraphOonFetcher.stratoColumnPath
override val stratoView: Unit = None
override protected val keyConv: Conv[UserId] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[CandidateSeq] =
ScroogeConv.fromStruct[CandidateSeq]
override protected def toStratoKey(userId: UserId): UserId = userId
override protected def toRawSignals(
realGraphOonCandidates: CandidateSeq
): Seq[RawSignalType] = realGraphOonCandidates.candidates
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals
.map {
_.map(
_.sortBy(-_.score)
.collect {
case c if c.score >= MinRgScore =>
Signal(
SignalType.RealGraphOon,
RealGraphOonFetcher.DefaultTimestamp,
Some(InternalId.UserId(c.userId)))
}.take(query.maxResults.getOrElse(Int.MaxValue)))
}
}
}
object RealGraphOonFetcher {
val stratoColumnPath = "recommendations/real_graph/realGraphScoresOon.User"
// quality threshold for real graph score
private val MinRgScore = 0.0
// no timestamp for RealGraph Candidates, set default as 0L
private val DefaultTimestamp = 0L
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/ReplyTweetsFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.common.TwistlyProfile
import com.twitter.twistly.thriftscala.EngagementMetadata.ReplyTweetMetadata
import com.twitter.twistly.thriftscala.RecentEngagedTweet
import com.twitter.twistly.thriftscala.UserRecentEngagedTweets
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class ReplyTweetsFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, UserRecentEngagedTweets] {
import ReplyTweetsFetcher._
override type RawSignalType = RecentEngagedTweet
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String =
TwistlyProfile.TwistlyProdProfile.userRecentEngagedStorePath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentEngagedTweets] =
ScroogeConv.fromStruct[UserRecentEngagedTweets]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, DefaultVersion)
override protected def toRawSignals(
userRecentEngagedTweets: UserRecentEngagedTweets
): Seq[RawSignalType] =
userRecentEngagedTweets.recentEngagedTweets
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map { signals =>
val lookBackWindowFilteredSignals =
SignalFilter.lookBackWindow90DayFilter(signals, query.signalType)
lookBackWindowFilteredSignals
.collect {
case RecentEngagedTweet(tweetId, engagedAt, _: ReplyTweetMetadata, _) =>
Signal(query.signalType, engagedAt, Some(InternalId.TweetId(tweetId)))
}.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
}
object ReplyTweetsFetcher {
// see com.twitter.twistly.store.UserRecentEngagedTweetsStore
private val DefaultVersion = 0
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/RetweetsFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.common.TwistlyProfile
import com.twitter.twistly.thriftscala.EngagementMetadata.RetweetMetadata
import com.twitter.twistly.thriftscala.RecentEngagedTweet
import com.twitter.twistly.thriftscala.UserRecentEngagedTweets
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class RetweetsFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, UserRecentEngagedTweets] {
import RetweetsFetcher._
override type RawSignalType = RecentEngagedTweet
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String =
TwistlyProfile.TwistlyProdProfile.userRecentEngagedStorePath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentEngagedTweets] =
ScroogeConv.fromStruct[UserRecentEngagedTweets]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, DefaultVersion)
override protected def toRawSignals(
userRecentEngagedTweets: UserRecentEngagedTweets
): Seq[RawSignalType] =
userRecentEngagedTweets.recentEngagedTweets
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map { signals =>
val lookBackWindowFilteredSignals =
SignalFilter.lookBackWindow90DayFilter(signals, query.signalType)
lookBackWindowFilteredSignals
.filter { recentEngagedTweet =>
recentEngagedTweet.features.statusCounts
.flatMap(_.favoriteCount).exists(_ >= MinFavCount)
}.collect {
case RecentEngagedTweet(tweetId, engagedAt, _: RetweetMetadata, _) =>
Signal(query.signalType, engagedAt, Some(InternalId.TweetId(tweetId)))
}.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
}
object RetweetsFetcher {
private val MinFavCount = 10
// see com.twitter.twistly.store.UserRecentEngagedTweetsStore
private val DefaultVersion = 0
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/SignalFilter.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.twistly.thriftscala.EngagementMetadata.FavoriteMetadata
import com.twitter.twistly.thriftscala.RecentEngagedTweet
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Time
// Shared Logic for filtering signal across different signal types
object SignalFilter {
final val LookBackWindow90DayFilterEnabledSignalTypes: Set[SignalType] = Set(
SignalType.TweetFavorite90dV2,
SignalType.Retweet90dV2,
SignalType.OriginalTweet90dV2,
SignalType.Reply90dV2)
/* Raw Signal Filter for TweetFavorite, Retweet, Original Tweet and Reply
* Filter out all raw signal if the most recent {Tweet Favorite + Retweet + Original Tweet + Reply}
* is older than 90 days.
* The filter is shared across 4 signal types as they are stored in the same physical store
* thus sharing the same TTL
* */
def lookBackWindow90DayFilter(
signals: Seq[RecentEngagedTweet],
querySignalType: SignalType
): Seq[RecentEngagedTweet] = {
if (LookBackWindow90DayFilterEnabledSignalTypes.contains(
querySignalType) && !isMostRecentSignalWithin90Days(signals.head)) {
Seq.empty
} else signals
}
private def isMostRecentSignalWithin90Days(
signal: RecentEngagedTweet
): Boolean = {
val diff = Time.now - Time.fromMilliseconds(signal.engagedAt)
diff.inDays <= 90
}
def isPromotedTweet(signal: RecentEngagedTweet): Boolean = {
signal match {
case RecentEngagedTweet(_, _, metadata: FavoriteMetadata, _) =>
metadata.favoriteMetadata.isAd.getOrElse(false)
case _ => false
}
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/TweetClickFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.thriftscala.RecentTweetClickImpressEvents
import com.twitter.twistly.thriftscala.TweetClickImpressEvent
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class TweetClickFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, RecentTweetClickImpressEvents] {
import TweetClickFetcher._
override type RawSignalType = TweetClickImpressEvent
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String = stratoPath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[RecentTweetClickImpressEvents] =
ScroogeConv.fromStruct[RecentTweetClickImpressEvents]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, defaultVersion)
override protected def toRawSignals(
stratoValue: RecentTweetClickImpressEvents
): Seq[TweetClickImpressEvent] = {
stratoValue.events
}
override def process(
query: Query,
rawSignals: Future[Option[Seq[TweetClickImpressEvent]]]
): Future[Option[Seq[Signal]]] =
rawSignals.map { events =>
events.map { clicks =>
clicks
.filter(dwelltimeFilter(_, query.signalType))
.map(signalFromTweetClick(_, query.signalType))
.sortBy(-_.timestamp)
.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
object TweetClickFetcher {
val stratoPath = "recommendations/twistly/userRecentTweetClickImpress"
private val defaultVersion = 0L
private val minDwellTimeMap: Map[SignalType, Long] = Map(
SignalType.GoodTweetClick -> 2 * 1000L,
SignalType.GoodTweetClick5s -> 5 * 1000L,
SignalType.GoodTweetClick10s -> 10 * 1000L,
SignalType.GoodTweetClick30s -> 30 * 1000L,
)
def signalFromTweetClick(
tweetClickImpressEvent: TweetClickImpressEvent,
signalType: SignalType
): Signal = {
Signal(
signalType,
tweetClickImpressEvent.engagedAt,
Some(InternalId.TweetId(tweetClickImpressEvent.entityId))
)
}
def dwelltimeFilter(
tweetClickImpressEvent: TweetClickImpressEvent,
signalType: SignalType
): Boolean = {
val goodClickDwellTime = minDwellTimeMap(signalType)
tweetClickImpressEvent.clickImpressEventMetadata.totalDwellTime >= goodClickDwellTime
}
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/TweetFavoritesFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.simclusters_v2.common.UserId
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.twistly.common.TwistlyProfile
import com.twitter.twistly.thriftscala.EngagementMetadata.FavoriteMetadata
import com.twitter.twistly.thriftscala.RecentEngagedTweet
import com.twitter.twistly.thriftscala.UserRecentEngagedTweets
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.base.StratoSignalFetcher
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class TweetFavoritesFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[(UserId, Long), Unit, UserRecentEngagedTweets] {
import TweetFavoritesFetcher._
override type RawSignalType = RecentEngagedTweet
override val name: String = this.getClass.getCanonicalName
override val statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String =
TwistlyProfile.TwistlyProdProfile.userRecentEngagedStorePath
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, Long)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentEngagedTweets] =
ScroogeConv.fromStruct[UserRecentEngagedTweets]
override protected def toStratoKey(userId: UserId): (UserId, Long) = (userId, DefaultVersion)
override protected def toRawSignals(
userRecentEngagedTweets: UserRecentEngagedTweets
): Seq[RawSignalType] =
userRecentEngagedTweets.recentEngagedTweets
override def process(
query: Query,
rawSignals: Future[Option[Seq[RawSignalType]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map { signals =>
val lookBackWindowFilteredSignals =
SignalFilter.lookBackWindow90DayFilter(signals, query.signalType)
lookBackWindowFilteredSignals
.filter { recentEngagedTweet =>
recentEngagedTweet.features.statusCounts
.flatMap(_.favoriteCount).exists(_ >= MinFavCount)
}.filter { recentEngagedTweet =>
applySignalTweetTypeFilter(query.signalType, recentEngagedTweet)
}.collect {
case RecentEngagedTweet(tweetId, engagedAt, _: FavoriteMetadata, _) =>
Signal(query.signalType, engagedAt, Some(InternalId.TweetId(tweetId)))
}.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
private def applySignalTweetTypeFilter(
signal: SignalType,
recentEngagedTweet: RecentEngagedTweet
): Boolean = {
// Perform specific filters for particular signal types.
signal match {
case SignalType.AdFavorite => SignalFilter.isPromotedTweet(recentEngagedTweet)
case _ => true
}
}
}
object TweetFavoritesFetcher {
private val MinFavCount = 10
// see com.twitter.twistly.store.UserRecentEngagedTweetsStore
private val DefaultVersion = 0
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/TweetSharesFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.bijection.Codec
import com.twitter.bijection.scrooge.BinaryScalaCodec
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.onboarding.relevance.tweet_engagement.thriftscala.EngagementIdentifier
import com.twitter.onboarding.relevance.tweet_engagement.thriftscala.TweetEngagement
import com.twitter.onboarding.relevance.tweet_engagement.thriftscala.TweetEngagements
import com.twitter.scalding_internal.multiformat.format.keyval.KeyValInjection.Long2BigEndian
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.storage.client.manhattan.kv.ManhattanKVClientMtlsParams
import com.twitter.storehaus_internal.manhattan.Apollo
import com.twitter.storehaus_internal.manhattan.ManhattanCluster
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.base.ManhattanSignalFetcher
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Future
import com.twitter.util.Timer
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class TweetSharesFetcher @Inject() (
manhattanKVClientMtlsParams: ManhattanKVClientMtlsParams,
timer: Timer,
stats: StatsReceiver)
extends ManhattanSignalFetcher[Long, TweetEngagements] {
import TweetSharesFetcher._
override type RawSignalType = TweetEngagement
override def name: String = this.getClass.getCanonicalName
override def statsReceiver: StatsReceiver = stats.scope(name)
override protected def manhattanAppId: String = MHAppId
override protected def manhattanDatasetName: String = MHDatasetName
override protected def manhattanClusterId: ManhattanCluster = Apollo
override protected def manhattanKeyCodec: Codec[Long] = Long2BigEndian
override protected def manhattanRawSignalCodec: Codec[TweetEngagements] = BinaryScalaCodec(
TweetEngagements)
override protected def toManhattanKey(userId: UserId): Long = userId
override protected def toRawSignals(
manhattanValue: TweetEngagements
): Seq[TweetEngagement] = manhattanValue.tweetEngagements
override def process(
query: Query,
rawSignals: Future[Option[Seq[TweetEngagement]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map {
_.collect {
case tweetEngagement if (tweetEngagement.engagementType == EngagementIdentifier.Share) =>
Signal(
SignalType.TweetShareV1,
tweetEngagement.timestampMs,
Some(InternalId.TweetId(tweetEngagement.tweetId)))
}.sortBy(-_.timestamp).take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
}
object TweetSharesFetcher {
private val MHAppId = "uss_prod_apollo"
private val MHDatasetName = "tweet_share_engagements"
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/VideoTweetsPlayback50Fetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.twistly.common.UserId
import com.twitter.twistly.thriftscala.UserRecentVideoViewTweets
import com.twitter.twistly.thriftscala.VideoViewEngagementType
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.util.Future
import com.twitter.util.Timer
import com.twitter.twistly.thriftscala.RecentVideoViewTweet
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.usersignalservice.base.StratoSignalFetcher
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class VideoTweetsPlayback50Fetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[
(UserId, VideoViewEngagementType),
Unit,
UserRecentVideoViewTweets
] {
import VideoTweetsPlayback50Fetcher._
override type RawSignalType = RecentVideoViewTweet
override def name: String = this.getClass.getCanonicalName
override def statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String = StratoColumn
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, VideoViewEngagementType)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentVideoViewTweets] =
ScroogeConv.fromStruct[UserRecentVideoViewTweets]
override protected def toStratoKey(userId: UserId): (UserId, VideoViewEngagementType) =
(userId, VideoViewEngagementType.VideoPlayback50)
override protected def toRawSignals(
stratoValue: UserRecentVideoViewTweets
): Seq[RecentVideoViewTweet] = stratoValue.recentEngagedTweets
override def process(
query: Query,
rawSignals: Future[Option[Seq[RecentVideoViewTweet]]]
): Future[Option[Seq[Signal]]] = rawSignals.map {
_.map {
_.filter(videoView =>
!videoView.isPromotedTweet && videoView.videoDurationSeconds >= MinVideoDurationSeconds)
.map { rawSignal =>
Signal(
SignalType.VideoView90dPlayback50V1,
rawSignal.engagedAt,
Some(InternalId.TweetId(rawSignal.tweetId)))
}.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
object VideoTweetsPlayback50Fetcher {
private val StratoColumn = "recommendations/twistly/userRecentVideoViewTweetEngagements"
private val MinVideoDurationSeconds = 10
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/VideoTweetsQualityViewFetcher.scala Normal file
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package com.twitter.usersignalservice.signals
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.twistly.common.UserId
import com.twitter.twistly.thriftscala.UserRecentVideoViewTweets
import com.twitter.twistly.thriftscala.VideoViewEngagementType
import com.twitter.usersignalservice.base.Query
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.util.Future
import com.twitter.util.Timer
import com.twitter.twistly.thriftscala.RecentVideoViewTweet
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.strato.client.Client
import com.twitter.strato.data.Conv
import com.twitter.strato.thrift.ScroogeConv
import com.twitter.usersignalservice.base.StratoSignalFetcher
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class VideoTweetsQualityViewFetcher @Inject() (
stratoClient: Client,
timer: Timer,
stats: StatsReceiver)
extends StratoSignalFetcher[
(UserId, VideoViewEngagementType),
Unit,
UserRecentVideoViewTweets
] {
import VideoTweetsQualityViewFetcher._
override type RawSignalType = RecentVideoViewTweet
override def name: String = this.getClass.getCanonicalName
override def statsReceiver: StatsReceiver = stats.scope(name)
override val stratoColumnPath: String = StratoColumn
override val stratoView: Unit = None
override protected val keyConv: Conv[(UserId, VideoViewEngagementType)] = Conv.ofType
override protected val viewConv: Conv[Unit] = Conv.ofType
override protected val valueConv: Conv[UserRecentVideoViewTweets] =
ScroogeConv.fromStruct[UserRecentVideoViewTweets]
override protected def toStratoKey(userId: UserId): (UserId, VideoViewEngagementType) =
(userId, VideoViewEngagementType.VideoQualityView)
override protected def toRawSignals(
stratoValue: UserRecentVideoViewTweets
): Seq[RecentVideoViewTweet] = stratoValue.recentEngagedTweets
override def process(
query: Query,
rawSignals: Future[Option[Seq[RecentVideoViewTweet]]]
): Future[Option[Seq[Signal]]] = {
rawSignals.map {
_.map {
_.filter(videoView =>
!videoView.isPromotedTweet && videoView.videoDurationSeconds >= MinVideoDurationSeconds)
.map { rawSignal =>
Signal(
SignalType.VideoView90dQualityV1,
rawSignal.engagedAt,
Some(InternalId.TweetId(rawSignal.tweetId)))
}.take(query.maxResults.getOrElse(Int.MaxValue))
}
}
}
}
object VideoTweetsQualityViewFetcher {
private val StratoColumn = "recommendations/twistly/userRecentVideoViewTweetEngagements"
private val MinVideoDurationSeconds = 10
}

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/common/BUILD Normal file
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scala_library(
compiler_option_sets = ["fatal_warnings"],
tags = ["bazel-compatible"],
dependencies = [
"hermit/hermit-core/src/main/scala/com/twitter/hermit/predicate/socialgraph",
"src/scala/com/twitter/simclusters_v2/common",
"src/scala/com/twitter/twistly/common",
"src/thrift/com/twitter/simclusters_v2:simclusters_v2-thrift-scala",
"src/thrift/com/twitter/socialgraph:thrift-scala",
"user-signal-service/thrift/src/main/thrift:thrift-scala",
"util/util-core:util-core-util",
"util/util-core/src/main/java/com/twitter/util",
"util/util-stats/src/main/scala/com/twitter/finagle/stats",
],
)

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user-signal-service/server/src/main/scala/com/twitter/usersignalservice/signals/common/SGSUtils.scala Normal file
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package com.twitter.usersignalservice.signals
package common
import com.twitter.simclusters_v2.thriftscala.InternalId
import com.twitter.socialgraph.thriftscala.EdgesRequest
import com.twitter.socialgraph.thriftscala.EdgesResult
import com.twitter.socialgraph.thriftscala.PageRequest
import com.twitter.socialgraph.thriftscala.RelationshipType
import com.twitter.socialgraph.thriftscala.SocialGraphService
import com.twitter.socialgraph.thriftscala.SrcRelationship
import com.twitter.twistly.common.UserId
import com.twitter.usersignalservice.thriftscala.Signal
import com.twitter.usersignalservice.thriftscala.SignalType
import com.twitter.util.Duration
import com.twitter.util.Future
import com.twitter.util.Time
object SGSUtils {
val MaxNumSocialGraphSignals = 200
val MaxAge: Duration = Duration.fromDays(90)
def getSGSRawSignals(
userId: UserId,
sgsClient: SocialGraphService.MethodPerEndpoint,
relationshipType: RelationshipType,
signalType: SignalType,
): Future[Option[Seq[Signal]]] = {
val edgeRequest = EdgesRequest(
relationship = SrcRelationship(userId, relationshipType),
pageRequest = Some(PageRequest(count = None))
)
val now = Time.now.inMilliseconds
sgsClient
.edges(Seq(edgeRequest))
.map { sgsEdges =>
sgsEdges.flatMap {
case EdgesResult(edges, _, _) =>
edges.collect {
case edge if edge.createdAt >= now - MaxAge.inMilliseconds =>
Signal(
signalType,
timestamp = edge.createdAt,
targetInternalId = Some(InternalId.UserId(edge.target)))
}
}
}
.map { signals =>
signals
.take(MaxNumSocialGraphSignals)
.groupBy(_.targetInternalId)
.mapValues(_.maxBy(_.timestamp))
.values
.toSeq
.sortBy(-_.timestamp)
}
.map(Some(_))
}
}

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create_thrift_libraries(
base_name = "thrift",
sources = [
"client_identifier.thrift",
"service.thrift",
"signal.thrift",
],
platform = "java8",
tags = ["bazel-compatible"],
dependency_roots = [
"src/thrift/com/twitter/simclusters_v2:simclusters_v2-thrift",
],
generate_languages = [
"java",
"scala",
"strato",
],
provides_java_name = "uss-thrift-java",
provides_scala_name = "uss-thrift-scala",
)

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user-signal-service/thrift/src/main/thrift/client_identifier.thrift Normal file
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namespace java com.twitter.usersignalservice.thriftjava
namespace py gen.twitter.usersignalservice.service
#@namespace scala com.twitter.usersignalservice.thriftscala
#@namespace strato com.twitter.usersignalservice.strato
# ClientIdentifier should be defined as ServiceId_Product
enum ClientIdentifier {
# reserve 1-10 for CrMixer
CrMixer_Home = 1
CrMixer_Notifications = 2
CrMixer_Email = 3
# reserve 11-20 for RSX
RepresentationScorer_Home = 11
RepresentationScorer_Notifications = 12
# reserve 21-30 for Explore
ExploreRanker = 21
# We will throw an exception after we make sure all clients are sending the
# ClientIdentifier in their request.
Unknown = 9999
}

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user-signal-service/thrift/src/main/thrift/service.thrift Normal file
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namespace java com.twitter.usersignalservice.thriftjava
namespace py gen.twitter.usersignalservice.service
#@namespace scala com.twitter.usersignalservice.thriftscala
#@namespace strato com.twitter.usersignalservice.strato
include "signal.thrift"
include "client_identifier.thrift"
struct SignalRequest {
1: optional i64 maxResults
2: required signal.SignalType signalType
}
struct BatchSignalRequest {
1: required i64 userId(personalDataType = "UserId")
2: required list<SignalRequest> signalRequest
# make sure to populate the clientId, otherwise the service would throw exceptions
3: optional client_identifier.ClientIdentifier clientId
}(hasPersonalData='true')
struct BatchSignalResponse {
1: required map<signal.SignalType, list<signal.Signal>> signalResponse
}

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namespace java com.twitter.usersignalservice.thriftjava
namespace py gen.twitter.usersignalservice.signal
#@namespace scala com.twitter.usersignalservice.thriftscala
#@namespace strato com.twitter.usersignalservice.strato
include "com/twitter/simclusters_v2/identifier.thrift"
enum SignalType {
/**
Please maintain the key space rule to avoid compatibility issue for the downstream production job
* Prod Key space: 0-1000
* Devel Key space: 1000+
**/
/* tweet based signals */
TweetFavorite = 0, // 540 Days Looback window
Retweet = 1, // 540 Days Lookback window
TrafficAttribution = 2,
OriginalTweet = 3, // 540 Days Looback window
Reply = 4, // 540 Days Looback window
/* Tweets that the user shared (sharer side)
* V1: successful shares (click share icon -> click in-app, or off-platform share option
* or copying link)
* */
TweetShare_V1 = 5, // 14 Days Lookback window
TweetFavorite_90D_V2 = 6, // 90 Days Lookback window : tweet fav from user with recent engagement in the past 90 days
Retweet_90D_V2 = 7, // 90 Days Lookback window : retweet from user with recent engagement in the past 90 days
OriginalTweet_90D_V2 = 8, // 90 Days Lookback window : original tweet from user with recent engagement in the past 90 days
Reply_90D_V2 = 9,// 90 Days Lookback window : reply from user with recent engagement in the past 90 days
GoodTweetClick = 10,// GoodTweetCilick Signal : Dwell Time Threshold >=2s
// video tweets that were watched (10s OR 95%) in the past 90 days, are not ads, and have >=10s video
VideoView_90D_Quality_V1 = 11 // 90 Days Lookback window
// video tweets that were watched 50% in the past 90 days, are not ads, and have >=10s video
VideoView_90D_Playback50_V1 = 12 // 90 Days Lookback window
/* user based signals */
AccountFollow = 100, // infinite lookback window
RepeatedProfileVisit_14D_MinVisit2_V1 = 101,
RepeatedProfileVisit_90D_MinVisit6_V1 = 102,
RepeatedProfileVisit_180D_MinVisit6_V1 = 109,
RepeatedProfileVisit_14D_MinVisit2_V1_No_Negative = 110,
RepeatedProfileVisit_90D_MinVisit6_V1_No_Negative = 111,
RepeatedProfileVisit_180D_MinVisit6_V1_No_Negative = 112,
RealGraphOon = 104,
TrafficAttributionProfile_30D_LastVisit = 105,
TrafficAttributionProfile_30D_DecayedVisit = 106,
TrafficAttributionProfile_30D_WeightedEventDecayedVisit = 107,
TrafficAttributionProfile_30D_DecayedVisit_WithoutAgathaFilter = 108,
GoodProfileClick = 120, // GoodTweetCilick Signal : Dwell Time Threshold >=10s
AdFavorite = 121, // Favorites filtered to ads TweetFavorite has both organic and ads Favs
// AccountFollowWithDelay should only be used by high-traffic clients and has 1 min delay
AccountFollowWithDelay = 122,
/* notifications based signals */
/* V1: notification clicks from past 90 days with negative events (reports, dislikes) being filtered */
NotificationOpenAndClick_V1 = 200,
/*
negative signals for filter
*/
NegativeEngagedTweetId = 901 // tweetId for all negative engagements
NegativeEngagedUserId = 902 // userId for all negative engagements
AccountBlock = 903,
AccountMute = 904,
// skip 905 - 906 for Account report abuse / report spam
// User clicked dont like from past 90 Days
TweetDontLike = 907
// User clicked see fewer on the recommended tweet from past 90 Days
TweetSeeFewer = 908
// User clicked on the "report tweet" option in the tweet caret dropdown menu from past 90 days
TweetReport = 909
/*
devel signals
use the num > 1000 to test out signals under development/ddg
put it back to the correct corresponding Key space (0-1000) before ship
*/
GoodTweetClick_5s = 1001,// GoodTweetCilick Signal : Dwell Time Threshold >=5s
GoodTweetClick_10s = 1002,// GoodTweetCilick Signal : Dwell Time Threshold >=10s
GoodTweetClick_30s = 1003,// GoodTweetCilick Signal : Dwell Time Threshold >=30s
GoodProfileClick_20s = 1004,// GoodProfileClick Signal : Dwell Time Threshold >=20s
GoodProfileClick_30s = 1005,// GoodProfileClick Signal : Dwell Time Threshold >=30s
GoodProfileClick_Filtered = 1006, // GoodProfileClick Signal filtered by blocks and mutes.
GoodProfileClick_20s_Filtered = 1007// GoodProfileClick Signal : Dwell Time Threshold >=20s, filtered byblocks and mutes.
GoodProfileClick_30s_Filtered = 1008,// GoodProfileClick Signal : Dwell Time Threshold >=30s, filtered by blocks and mutes.
/*
Unified Signals
These signals are aimed to unify multiple signal fetches into a single response.
This might be a healthier way for our retrievals layer to run inference on.
*/
TweetBasedUnifiedUniformSignal = 1300
TweetBasedUnifiedEngagementWeightedSignal = 1301
TweetBasedUnifiedQualityWeightedSignal = 1302
ProducerBasedUnifiedUniformSignal = 1303
ProducerBasedUnifiedEngagementWeightedSignal = 1304
ProducerBasedUnifiedQualityWeightedSignal = 1305
}
struct Signal {
1: required SignalType signalType
2: required i64 timestamp
3: optional identifier.InternalId targetInternalId
}