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https://issues.apache.org/jira/browse/HBASE-18056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16018926#comment-16018926
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Anoop Sam John commented on HBASE-18056:
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Is this committed already?
1. I have raised a concern already (before also) on 1 being the default value
for the pipeline threshold for the merge
2. It is a practice to write comment abt the commit and close the issue while
committing
3. For this kind of critical changes, it would be better to wait for at least
2 +1s
> Change CompactingMemStore in BASIC mode to merge multiple segments in pipeline
> ------------------------------------------------------------------------------
>
> Key: HBASE-18056
> URL: https://issues.apache.org/jira/browse/HBASE-18056
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anastasia Braginsky
> Attachments: HBASE-18056-V01.patch
>
>
> Under HBASE-16417 it was decided that CompactingMemStore in BASIC mode should
> merge multiple ImmutableSegments in CompactionPipeline. Basic+Merge actually
> demonstrated reduction in GC, alongside improvement in other metrics.
> However, the limit on the number of segments in pipeline is still set to 30.
> Under this JIRA it should be changed to 1, as it was tested under HBASE-16417.
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