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https://issues.apache.org/jira/browse/HBASE-17081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15699652#comment-15699652
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Edward Bortnikov commented on HBASE-17081:
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Please note that this feature is part of both BASIC and EAGER compaction
policies, as described in
https://docs.google.com/document/d/16XOiOuG9e0l6D_mD-oM5JHcSVmKC8rpIVJGH239gWsQ
(see HBASE-16851).
As such, Index and Data merge are both parts of the EAGER policy; only index
flattening happens in BASIC.
The whole pipeline is flushed to disk, in both policies.
> Flush the entire CompactingMemStore content to disk
> ---------------------------------------------------
>
> Key: HBASE-17081
> URL: https://issues.apache.org/jira/browse/HBASE-17081
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anastasia Braginsky
> Assignee: Anastasia Braginsky
> Attachments: HBASE-17081-V01.patch, HBASE-17081-V02.patch,
> Pipelinememstore_fortrunk_3.patch
>
>
> Part of CompactingMemStore's memory is held by an active segment, and another
> part is divided between immutable segments in the compacting pipeline. Upon
> flush-to-disk request we want to flush all of it to disk, in contrast to
> flushing only tail of the compacting pipeline.
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