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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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