the-algorithm/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/MemcachedFeatureRepositoryModule.scala
twitter-team ef4c5eb65e Twitter Recommendation Algorithm
Please note we have force-pushed a new initial commit in order to remove some publicly-available Twitter user information. Note that this process may be required in the future.
2023-03-31 17:36:31 -05:00

114 lines
4.0 KiB
Scala

package com.twitter.home_mixer.module
import com.google.inject.Provides
import com.twitter.conversions.DurationOps._
import com.twitter.finagle.Memcached
import com.twitter.finagle.mtls.authentication.ServiceIdentifier
import com.twitter.finagle.stats.StatsReceiver
import com.twitter.home_mixer.param.HomeMixerInjectionNames.HomeAuthorFeaturesCacheClient
import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealTimeInteractionGraphUserVertexClient
import com.twitter.home_mixer.param.HomeMixerInjectionNames.TimelinesRealTimeAggregateClient
import com.twitter.home_mixer.param.HomeMixerInjectionNames.TwhinAuthorFollow20200101FeatureCacheClient
import com.twitter.inject.TwitterModule
import com.twitter.product_mixer.shared_library.memcached_client.MemcachedClientBuilder
import com.twitter.servo.cache.FinagleMemcacheFactory
import com.twitter.servo.cache.Memcache
import javax.inject.Named
import javax.inject.Singleton
object MemcachedFeatureRepositoryModule extends TwitterModule {
// This must match the respective parameter on the write path. Note that servo sets a different
// hasher by default. See [[com.twitter.hashing.KeyHasher]] for the list of other available
// hashers.
private val memcacheKeyHasher = "ketama"
@Provides
@Singleton
@Named(TimelinesRealTimeAggregateClient)
def providesTimelinesRealTimeAggregateClient(
serviceIdentifier: ServiceIdentifier,
statsReceiver: StatsReceiver
): Memcache = {
val rawClient = MemcachedClientBuilder.buildRawMemcachedClient(
numTries = 1,
requestTimeout = 150.milliseconds,
globalTimeout = 150.milliseconds,
connectTimeout = 200.milliseconds,
acquisitionTimeout = 200.milliseconds,
serviceIdentifier = serviceIdentifier,
statsReceiver = statsReceiver
)
buildMemcacheClient(rawClient, "/s/cache/timelines_real_time_aggregates:twemcaches")
}
@Provides
@Singleton
@Named(HomeAuthorFeaturesCacheClient)
def providesHomeAuthorFeaturesCacheClient(
serviceIdentifier: ServiceIdentifier,
statsReceiver: StatsReceiver
): Memcache = {
val cacheClient = MemcachedClientBuilder.buildRawMemcachedClient(
numTries = 1,
requestTimeout = 50.milliseconds,
globalTimeout = 50.milliseconds,
connectTimeout = 200.milliseconds,
acquisitionTimeout = 200.milliseconds,
serviceIdentifier = serviceIdentifier,
statsReceiver = statsReceiver
)
buildMemcacheClient(cacheClient, "/s/cache/timelines_author_features:twemcaches")
}
@Provides
@Singleton
@Named(TwhinAuthorFollow20200101FeatureCacheClient)
def providesTwhinAuthorFollow20200101FeatureCacheClient(
serviceIdentifier: ServiceIdentifier,
statsReceiver: StatsReceiver
): Memcache = {
val cacheClient = MemcachedClientBuilder.buildRawMemcachedClient(
numTries = 1,
requestTimeout = 50.milliseconds,
globalTimeout = 50.milliseconds,
connectTimeout = 200.milliseconds,
acquisitionTimeout = 200.milliseconds,
serviceIdentifier = serviceIdentifier,
statsReceiver = statsReceiver
)
buildMemcacheClient(cacheClient, "/s/cache/home_twhin_author_features:twemcaches")
}
@Provides
@Singleton
@Named(RealTimeInteractionGraphUserVertexClient)
def providesRealTimeInteractionGraphUserVertexClient(
serviceIdentifier: ServiceIdentifier,
statsReceiver: StatsReceiver
): Memcache = {
val cacheClient = MemcachedClientBuilder.buildRawMemcachedClient(
numTries = 1,
requestTimeout = 100.milliseconds,
globalTimeout = 100.milliseconds,
connectTimeout = 200.milliseconds,
acquisitionTimeout = 200.milliseconds,
serviceIdentifier = serviceIdentifier,
statsReceiver = statsReceiver
)
buildMemcacheClient(cacheClient, "/s/cache/realtime_interactive_graph_prod_v2:twemcaches")
}
private def buildMemcacheClient(cacheClient: Memcached.Client, dest: String): Memcache =
FinagleMemcacheFactory(
client = cacheClient,
dest = dest,
hashName = memcacheKeyHasher
)()
}