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https://issues.apache.org/jira/browse/HBASE-27647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaolin Ha updated HBASE-27647:
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Affects Version/s: 2.5.3
> Fix the cached block differ (which should not have happened) issue with
> cacheDataOnWrite on
> -------------------------------------------------------------------------------------------
>
> Key: HBASE-27647
> URL: https://issues.apache.org/jira/browse/HBASE-27647
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.5.3
> Reporter: Xiaolin Ha
> Assignee: Xiaolin Ha
> Priority: Major
>
> When caching the block by reading from hfile, the block cached will contains
> a header with the next block info.
> But when caching the block by writing when cacheDataOnWrite is on, the block
> cached without the header of the next block info.
> Then when comparing the old and new blocks in
> BlockCacheUtil#validateBlockAddition, it will print error logs ,
> {code:java}
> hfile.BlockCacheUtil: Cached block contents differ, which should not have
> happened. cacheKey:XXX {code}
> This will harm the actual replacement of the cached block, since we should
> replace or not when the cached block contents differ by nextBlockOnDiskSize.
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