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From "Anastasia Braginsky (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-18056) Change CompactingMemStore in BASIC mode to merge multiple segments in pipeline
Date Thu, 18 May 2017 09:32:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anastasia Braginsky updated HBASE-18056:
----------------------------------------
    Status: Patch Available  (was: Open)

> 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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