[KAFKA-7652] Kafka Streams Session store performance degradation from 0.10.2.2 to 0.11.0.0 - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 0.11.0.0, 0.11.0.1, 0.11.0.2, 0.11.0.3, 1.1.1, 2.0.0, 2.0.1
Fix Version/s: 2.3.0
Component/s: None
Labels:
- kip

Description

I'm creating this issue in response to guozhang's request on the mailing list:

https://lists.apache.org/thread.html/97d620f4fd76be070ca4e2c70e2fda53cafe051e8fc4505dbcca0321@%3Cusers.kafka.apache.org%3E

We are attempting to upgrade our Kafka Streams application from 0.10.2.1 but experience a severe performance degradation. The highest amount of CPU time seems spent in retrieving from the local cache. Here's an example thread profile with 0.11.0.0:

https://i.imgur.com/l5VEsC2.png

When things are running smoothly we're gated by retrieving from the state store with acceptable performance. Here's an example thread profile with 0.10.2.1:

https://i.imgur.com/IHxC2cZ.png

Some investigation reveals that it appears we're performing about 3 orders magnitude more lookups on the NamedCache over a comparable time period. I've attached logs of the NamedCache flush logs for 0.10.2.1 and 0.11.0.3.

We're using session windows and have the app configured for commit.interval.ms = 30 * 1000 and cache.max.bytes.buffering = 10485760

I'm happy to share more details if they would be helpful. Also happy to run tests on our data.

I also found this issue, which seems like it may be related:

https://issues.apache.org/jira/browse/KAFKA-4904

KIP-420: https://cwiki.apache.org/confluence/display/KAFKA/KIP-420%3A+Add+Single+Value+Fetch+in+Session+Stores