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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7695) Intermittent failures in TestOpenFilesWithSnapshot
Date Sat, 23 Jan 2016 20:30:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15113947#comment-15113947
] 

Mingliang Liu commented on HDFS-7695:
-------------------------------------

The {{MiniDFSCluster}} does not keep rpc port when restarting NN. Suppose the NN restarts
with a new rpc port, the DNs will not be able to register themselves. This way the NN will
never leave safe mode without enough DN, leading to timed out exception.

Does this make sense?

> Intermittent failures in TestOpenFilesWithSnapshot
> --------------------------------------------------
>
>                 Key: HDFS-7695
>                 URL: https://issues.apache.org/jira/browse/HDFS-7695
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 2.6.0
>            Reporter: Konstantin Shvachko
>
> This is to investigate intermittent failures of {{TestOpenFilesWithSnapshot}}, which
is timing out on the NameNode restart as it is unable to leave SafeMode.



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