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From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18309) Support multi threads in CleanerChore
Date Wed, 15 Nov 2017 08:59:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16253145#comment-16253145
] 

Yu Li commented on HBASE-18309:
-------------------------------

Left some review comments on rb, please check.

bq. please allow me to file another jira for that, it's too squeezed to put into one patch
Sounds good, please add a link here after new jira created.

Thanks.

> Support multi threads in CleanerChore
> -------------------------------------
>
>                 Key: HBASE-18309
>                 URL: https://issues.apache.org/jira/browse/HBASE-18309
>             Project: HBase
>          Issue Type: Improvement
>          Components: wal
>            Reporter: binlijin
>            Assignee: Reid Chan
>         Attachments: HBASE-18309.master.001.patch, HBASE-18309.master.002.patch, HBASE-18309.master.004.patch,
space_consumption_in_archive.png
>
>
> 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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