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From "Vinay (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4516) Client crash after block allocation and NN switch before lease recovery for the same file can cause readers to fail forever
Date Mon, 12 Aug 2013 12:07:53 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4516?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinay updated HDFS-4516:
------------------------

    Attachment: HDFS-4516.patch

Attached updated patch..
                
> Client crash after block allocation and NN switch before lease recovery for the same
file can cause readers to fail forever
> ---------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4516
>                 URL: https://issues.apache.org/jira/browse/HDFS-4516
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.0.0, 2.0.3-alpha
>            Reporter: Uma Maheswara Rao G
>            Priority: Critical
>         Attachments: HDFS-4516.patch, HDFS-4516.patch, HDFS-4516-Test.patch, HDFS-4516.txt
>
>
> If client crashes just after allocating block( blocks not yet created in DNs) and NN
also switched after this, then new Namenode will not know about locs.
> Further details will be in comment.

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