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https://issues.apache.org/jira/browse/HBASE-18309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720768#comment-16720768
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Hudson commented on HBASE-18309:
--------------------------------
SUCCESS: Integrated in Jenkins build HBase-1.3-IT #509 (See
[https://builds.apache.org/job/HBase-1.3-IT/509/])
HBASE-20352 [Chore] Backport HBASE-18309 (Support multi threads in (apurtell:
rev 193d1dcb72c22252fc86ee8433c765c42349d3cc)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/master/cleaner/CleanerChore.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/backup/example/TestZooKeeperTableArchiveClient.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/util/FSUtils.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/master/cleaner/TestLogsCleaner.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/master/cleaner/TestHFileLinkCleaner.java
* (add)
hbase-server/src/main/java/org/apache/hadoop/hbase/util/FileStatusFilter.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/master/cleaner/TestCleanerChore.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/master/cleaner/TestHFileCleaner.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/master/cleaner/LogCleaner.java
> Support multi threads in CleanerChore
> -------------------------------------
>
> Key: HBASE-18309
> URL: https://issues.apache.org/jira/browse/HBASE-18309
> Project: HBase
> Issue Type: Improvement
> Reporter: binlijin
> Assignee: Reid Chan
> Priority: Major
> Fix For: 2.0.0-beta-1, 2.0.0
>
> Attachments: HBASE-18309.addendum.patch,
> HBASE-18309.branch-1.001.patch, HBASE-18309.branch-1.002.patch,
> HBASE-18309.branch-1.003.patch, HBASE-18309.branch-1.004.patch,
> HBASE-18309.branch-1.005.patch, HBASE-18309.branch-1.006.patch,
> 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,
> HBASE-18309.master.012.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.
> What's more, currently there's only one thread iterating the archive
> directory, and we could use multiple threads cleaning sub directories in
> parallel to speed it up.
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