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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8778) TestBlockReportRateLimiting#testLeaseExpiration can deadlock
Date Fri, 17 Jul 2015 13:10:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14631303#comment-14631303
] 

Hudson commented on HDFS-8778:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #256 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/256/])
HDFS-8778. TestBlockReportRateLimiting#testLeaseExpiration can deadlock. (Contributed by Arpit
Agarwal) (arp: rev 3ec0a0444f75c8743289ec7c8645d4bdf51fc45a)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockReportRateLimiting.java


> TestBlockReportRateLimiting#testLeaseExpiration can deadlock
> ------------------------------------------------------------
>
>                 Key: HDFS-8778
>                 URL: https://issues.apache.org/jira/browse/HDFS-8778
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 2.7.1
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8778.01.patch, HDFS-8778.02.patch
>
>
> {{requestBlockReportLease}} blocks on DataNode registration while holding the NameSystem
read lock.
> DataNode registration can block on the NameSystem read lock if a writer gets in the queue.



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