[
https://issues.apache.org/jira/browse/HBASE-18309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16259257#comment-16259257
]
Reid Chan edited comment on HBASE-18309 at 11/20/17 1:59 PM:
-------------------------------------------------------------
bq. As concerned, it's possible for thread flood happen and drag NN down. And i
have an idea (not quite sure, and need some discussions), but would please
allow me to file another jira for that, it's too squeezed to put into one patch.
HBASE-19306, FYI [~carp84] and anyone has the same concern
was (Author: reidchan):
bq. As concerned, it's possible for thread flood happen and drag NN down. And i
have an idea (not quite sure, and need some discussions), but would please
allow me to file another jira for that, it's too squeezed to put into one patch.
HBASE-19306, FYI @Yu Li and anyone has the same concern
> 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,
> HBASE-18309.master.005.patch, HBASE-18309.master.006.patch,
> HBASE-18309.master.007.patch, HBASE-18309.master.008.patch,
> HBASE-18309.master.009.patch, HBASE-18309.master.010.patch,
> HBASE-18309.master.011.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.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
