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https://issues.apache.org/jira/browse/HBASE-6865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13491793#comment-13491793
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Jonathan Hsieh commented on HBASE-6865:
---------------------------------------
High order bits. from v2
1) There is a cache for hfile directory listings and a separate cache for hlog
file directory listings.
2) There are two main caches likely get plugged into the archive cleaner (but
it doesn't seem to happen in this patch).
4) There are some a non standard use of a setter that is in the is a limitation
of the cleaner api. There should be a follow on issue to help that be more
conventional.
> Snapshot File Cleaners
> ----------------------
>
> Key: HBASE-6865
> URL: https://issues.apache.org/jira/browse/HBASE-6865
> Project: HBase
> Issue Type: Sub-task
> Reporter: Jesse Yates
> Assignee: Jesse Yates
> Fix For: hbase-6055
>
>
> HFile and HLog cleaners are necessary for fully implementing snapshots, but
> can be broken out into their own piece really cleanly. The HFile cleaner is
> necessary for both timestamp and globally consistent snapshots, but the HLog
> cleaner is necessary for globally consistent and offline snapshots.
> Putting everything together in one patch isn't too much overload as there is
> a lot of overlap between the cleaners.
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