Eno Thereska created KAFKA-4904:
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Summary: Performance of RocksDb with state record cache
Key: KAFKA-4904
URL: https://issues.apache.org/jira/browse/KAFKA-4904
Project: Kafka
Issue Type: Improvement
Components: streams
Affects Versions: 0.10.2.0
Reporter: Eno Thereska
Fix For: 0.11.0.0
The performance of RocksDb without any record cache is slightly better than
with the default of 10MB of the default cache. This needs investigating. It is
likely to be the case that this is not an entirely apples-to-apples comparison
since the record cache holds records for a maximum of 'commit.time.ms', which
by default is 30 seconds. So the record cache is adding quite a bit of latency,
and we know that, however documenting the tradeoff and looking if there is any
other bugs needs to be done.
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