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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18309) Support multi threads to clean oldWALs
Date Thu, 02 Nov 2017 17:37:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16236223#comment-16236223
] 

Andrew Purtell commented on HBASE-18309:
----------------------------------------

[~reidchan] Go for it!

> Support multi threads to clean oldWALs
> --------------------------------------
>
>                 Key: HBASE-18309
>                 URL: https://issues.apache.org/jira/browse/HBASE-18309
>             Project: HBase
>          Issue Type: Improvement
>          Components: wal
>            Reporter: binlijin
>            Assignee: Reid Chan
>            Priority: Major
>
> There is only one thread in LogCleaner to clean oldWALs and in our big cluster we find
this is not enough. The number of files under oldWALs reach the max-directory-items limit
of HDFS and cause region server crash, so we use multi threads for LogCleaner and the crash
not happened any more.



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