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Posted to dev@kafka.apache.org by "Damian Guy (JIRA)" <ji...@apache.org> on 2016/11/04 12:50:58 UTC
[jira] [Updated] (KAFKA-4379) Remove caching of dirty and removed
keys from StoreChangeLogger
[ https://issues.apache.org/jira/browse/KAFKA-4379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Damian Guy updated KAFKA-4379:
------------------------------
Status: Patch Available (was: In Progress)
> Remove caching of dirty and removed keys from StoreChangeLogger
> ---------------------------------------------------------------
>
> Key: KAFKA-4379
> URL: https://issues.apache.org/jira/browse/KAFKA-4379
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Affects Versions: 0.10.1.0
> Reporter: Damian Guy
> Assignee: Damian Guy
> Priority: Minor
> Fix For: 0.10.1.1
>
>
> The StoreChangeLogger currently keeps a cache of dirty and removed keys and will batch the changelog records such that we don't send a record for each update. However, with KIP-63 this is unnecessary as the batching and de-duping is done by the caching layer. Further, the StoreChangeLogger relies on context.timestamp() which is likely to be incorrect when caching is enabled
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