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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16156) In write heavy scenario creating in memory flushes leads to contention
Date Fri, 01 Jul 2016 12:07:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15358860#comment-15358860
] 

ramkrishna.s.vasudevan commented on HBASE-16156:
------------------------------------------------

Linking HBASE-16162, I think that may help solve this issue.

> In write heavy scenario creating in memory flushes leads to contention
> ----------------------------------------------------------------------
>
>                 Key: HBASE-16156
>                 URL: https://issues.apache.org/jira/browse/HBASE-16156
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0
>
>
> In write heavy cases, the inmemory flushes blocks the write because it takes a update
lock. Dumps show that it is causing heavy contention and leads to memstore filling up and
so intern blocks the flush from happening sooner. This JIRA is to discuss optimal settings
and then make suitable changes.



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