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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7042) Upgrade fails for Windows HA cluster due to file locks held during rename in JournalNode.
Date Fri, 12 Sep 2014 13:45:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14131538#comment-14131538
] 

Hudson commented on HDFS-7042:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #1894 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1894/])
HDFS-7042. Upgrade fails for Windows HA cluster due to file locks held during rename in JournalNode.
Contributed by Chris Nauroth. (cnauroth: rev 80ac6aabcea9f808fd55504cdaef2da7b50da7f1)
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/Journal.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/util/BestEffortLongFile.java


> Upgrade fails for Windows HA cluster due to file locks held during rename in JournalNode.
> -----------------------------------------------------------------------------------------
>
>                 Key: HDFS-7042
>                 URL: https://issues.apache.org/jira/browse/HDFS-7042
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: journal-node
>    Affects Versions: 2.4.1
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>            Priority: Blocker
>             Fix For: 2.6.0
>
>         Attachments: HDFS-7042.1.patch
>
>
> During upgrade of an HA cluster, the JournalNode attempts to rename the current storage
directory to previous.  However, the process still holds the last committed transaction ID
file opened while this is happening.  On Windows, this is a locking violation that causes
the rename operation to fail.  Ultimately the whole upgrade fails.  There is a similar problem
during rollback too.



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