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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17157) Increase the default mergeable threshold for mob compaction
Date Tue, 22 Nov 2016 08:16:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15686038#comment-15686038
] 

Anoop Sam John commented on HBASE-17157:
----------------------------------------

+1
Ya if the MOB file size is above this, we exclude those files from compaction.  128 MB is
flush size but we allow this to grow 4x before doing a forced/blocked flush.  So in all chance
the flushed file's size can grow beyond 192.  Also pls note that for flushing we now consider
only cell data size now (not cell java object overhead and overhead because of addition to
CSLM in memstore)

> Increase the default mergeable threshold for mob compaction
> -----------------------------------------------------------
>
>                 Key: HBASE-17157
>                 URL: https://issues.apache.org/jira/browse/HBASE-17157
>             Project: HBase
>          Issue Type: Improvement
>          Components: mob
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>            Priority: Minor
>         Attachments: HBASE-17157.patch
>
>
> Now the default mergeable threshold for mob compaction is 192MB, we need to increase
this value.



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