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https://issues.apache.org/jira/browse/HBASE-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15451242#comment-15451242
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Anoop Sam John commented on HBASE-16417:
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No , what she says is this compaction of segments in pipeline (into one
segment) will not include the Cell data copy. (this might be happening as of
now, but will get rid of that). Ya this is kind of compaction. The real
compaction will involve scanning all segments and that might remove
deleted/version expired cells. Here there will be a fresh copy of the cell data
to new MSLAB chunks. But the other simple compaction won't do this MSLAB
extra copy. That will consider all cells also. (just an iterator no
StoreScanner. correct Anastatia?) So this op aim is to reduce the #segments in
pipeline in order to reduce the impact this might have on reads (scan)
> In-Memory MemStore Policy for Flattening and Compactions
> --------------------------------------------------------
>
> Key: HBASE-16417
> URL: https://issues.apache.org/jira/browse/HBASE-16417
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anastasia Braginsky
> Assignee: Anastasia Braginsky
>
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