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Posted to issues@hbase.apache.org by "Anoop Sam John (JIRA)" <ji...@apache.org> on 2017/09/07 17:56:00 UTC
[jira] [Commented] (HBASE-18641) Include block content verification
logic used in lruCache in bucketCache
[ https://issues.apache.org/jira/browse/HBASE-18641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16157339#comment-16157339 ]
Anoop Sam John commented on HBASE-18641:
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bq.Compare already cached block only if lruBlockCache is not used to cache data blocks
Why not in other case?
bq. "Cached an already cached block: " + cacheKey;
Caching an already ....
> 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.PATCH, 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_2JhfvOz+Q@mail.gmail.com%3e] for details.
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