OmniaGM commented on code in PR #15836:
URL: https://github.com/apache/kafka/pull/15836#discussion_r1586403158
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core/src/main/scala/kafka/server/BrokerServer.scala:
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@@ -389,9 +389,17 @@ class BrokerServer(
authorizer = config.createNewAuthorizer()
authorizer.foreach(_.configure(config.originals))
- val fetchManager = new FetchManager(Time.SYSTEM,
- new FetchSessionCache(config.maxIncrementalFetchSessionCacheSlots,
- KafkaServer.MIN_INCREMENTAL_FETCH_SESSION_EVICTION_MS))
+ // The FetchSessionCache is divided into config.numIoThreads shards,
each responsible
+ // for sessionIds falling in [Max(1, shardNum * sessionIdRange),
(shardNum + 1) * sessionIdRange)
+ val sessionIdRange = Int.MaxValue / config.numIoThreads
Review Comment:
+ 1 on keeping number of threads out this.
> How about we introduce a constant for now and set it to 8?
Out of curiosity are you planning later to make this constant a
configuration?
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