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https://issues.apache.org/jira/browse/HBASE-18992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16201927#comment-16201927
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Chia-Ping Tsai commented on HBASE-18992:
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+1
bq. I was also thinking that we dont make in memory compaction for the META
regions.
The default memstore policy for META table is {{BASIC}}, because
# The default policy in {{HStore}} is {{BASIC}}
#
[FSTableDescriptors|https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/util/FSTableDescriptors.java#L147]
don't set policy to meta table descriptor
The interesting thing is why no failure is caused by this issue? The meta data
is too small to trigger any in-memory compaction?
> 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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