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https://issues.apache.org/jira/browse/HBASE-18641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16140518#comment-16140518
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Biju Nair commented on HBASE-18641:
-----------------------------------
Based on the comment in the code and from HBASE-8547, the need to compare cache
blocks (which is the major overhead) happens in rare cases. Any suggestions on
how to go about recreating the scenario to quantify it? Given that this
comparison was [deemed
necessary|https://issues.apache.org/jira/browse/HBASE-8547?focusedCommentId=13658942&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13658942],
do we need to quantify it?
> Include block content verification logic used in lruCache in bucketCache
> ------------------------------------------------------------------------
>
> Key: HBASE-18641
> URL: https://issues.apache.org/jira/browse/HBASE-18641
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Reporter: Biju Nair
> Assignee: Biju Nair
> Attachments: HBASE-18641-WIP.PATCH
>
>
> With off-heap/bucketCache being used to cache data blocks without going
> through on-heap cache, the logic used in lruCache to check the content of
> already cached block need to be included in bucketCache. Please see this
> [discussion|https://mail-archives.apache.org/mod_mbox/hbase-dev/201708.mbox/%3cCAO40JLCnXLw3=0bbUaXdDx=w2fklljefvgj6-uvj_2jhfvo...@mail.gmail.com%3e]
> for details.
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