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From "Chia-Ping Tsai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18992) Comparators passed to the Memstore's flattened segments seems to be wrong
Date Thu, 12 Oct 2017 15:21:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16202094#comment-16202094
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Chia-Ping Tsai commented on HBASE-18992:
----------------------------------------

bq. In another issue we can change it NOT to do in memory compaction for the META region?
I'm not sure which memstore impl is best choice for META region. Perhaps we should make it
configurable (via hbase-site.xml)?

> Comparators passed to the Memstore's flattened segments seems to be wrong
> -------------------------------------------------------------------------
>
>                 Key: HBASE-18992
>                 URL: https://issues.apache.org/jira/browse/HBASE-18992
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha-3
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0-beta-1
>
>         Attachments: HBASE-18992.patch
>
>
> While doing HBASE-18945 found that the comparators passed to the CellChunkImmutableSegment
and CellArrayImmutableSegment are sometimes wrong. We pass the comparator that we got from
the Store but when doing reinitializeCellSet we always use CellComparator.COMPARATOR.
> From code I don think we are stopping the META region to also go through CompactingMemstore.
If we do that then this JIRA is invalid. But considering that is not the case we should fix
it and pass the right comparator.



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