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Posted to issues@hbase.apache.org by "Anastasia Braginsky (JIRA)" <ji...@apache.org> on 2018/01/03 08:06:05 UTC

[jira] [Updated] (HBASE-18056) Change CompactingMemStore in BASIC mode to merge multiple segments in pipeline

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

Anastasia Braginsky updated HBASE-18056:
----------------------------------------
    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

> 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
>            Assignee: 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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