[jira] [Updated] (KAFKA-4904) Performance of RocksDb with state record cache

["Eno Thereska (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-4904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eno Thereska updated KAFKA-4904:
--------------------------------
    Fix Version/s:     (was: 0.11.0.0)
                   0.11.1.0

> 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: 0.11.1.0
>
>
> 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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