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https://issues.apache.org/jira/browse/HDFS-9783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinayakumar B resolved HDFS-9783.
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Resolution: Duplicate
Resolving as duplicate.
Feel free to re-open if fix in HDFS-9661 doesnt work for you.
> DataNode deadlocks after running hdfs mover
> -------------------------------------------
>
> Key: HDFS-9783
> URL: https://issues.apache.org/jira/browse/HDFS-9783
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.6.0
> Reporter: David Watzke
> Attachments: datanode.stack.txt
>
>
> We're running CDH 5.4.4 (with Hadoop 2.6.0). Recently we've added 800T of
> ARCHIVE storage, marked some data (16T * 2 repl. factor) as "COLD" and ran
> the hdfs mover to enforce the storage policy.
> After a few minutes, the mover hangs because one or more datanodes hang as
> well. Please check out the deadlock revealed by jstack. Also, here's what
> appeared in DN log:
> 2016-02-09 15:58:15,676 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
> Not able to copy block 1157230686 to /5.45.60.142:40144 because threads quota
> is exceeded.
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