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https://issues.apache.org/jira/browse/HBASE-17035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15643798#comment-15643798
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Duo Zhang commented on HBASE-17035:
-----------------------------------
requestLogRoll is asynchronous. It just adds an entry in a map in LogRoller. So
it is possible that the requestLogRoll is triggered 3 times with the same
writer instance. You can see the comment in the syncCompleted method in the v1
patch of HBASE-17021.
Thanks.
> Check why we roll a wal writer at 10MB when the configured roll size is 120M+
> with AsyncFSWAL
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-17035
> URL: https://issues.apache.org/jira/browse/HBASE-17035
> Project: HBase
> Issue Type: Sub-task
> Components: wal
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0
>
>
> Found this when addressing HBASE-16890. It is one of the possible reason that
> why AsyncFSWAL performs worse than FSHLog when running PE tool.
> https://issues.apache.org/jira/browse/HBASE-16890?focusedCommentId=15636688&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15636688
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