[
https://issues.apache.org/jira/browse/HBASE-18056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16012473#comment-16012473
]
Anoop Sam John commented on HBASE-18056:
----------------------------------------
Will need many rounds of perf test before doing this. With and with out MSLAB
and pool (All possible options that we give).. Already I have an issue with
MSLAB pool and high IHOP. (mentioned details and possible cause in another
jira). The merge will make the situation worse there. Will do more tests around
this. Already doing some.
> 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
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
