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https://issues.apache.org/jira/browse/HDFS-6694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14104514#comment-14104514
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Giridharan Kesavan commented on HDFS-6694:
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{noformat}
jenkins@asf904:~$ ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 386178
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 60000
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 10240
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited
{noformat}

> TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently 
> with various symptoms
> ------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6694
>                 URL: https://issues.apache.org/jira/browse/HDFS-6694
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>            Priority: Blocker
>             Fix For: 2.6.0
>
>         Attachments: HDFS-6694.001.dbg.patch, HDFS-6694.001.dbg.patch, 
> org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover-output.txt, 
> org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover.txt
>
>
> TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently 
> with various symptoms. Typical failures are described in first comment.



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