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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-1936) Updating the layout version from HDFS-1822 causes upgrade problems.
Date Sat, 28 May 2011 00:00:54 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suresh Srinivas updated HDFS-1936:
----------------------------------

    Attachment: HDFS-1936.6.patch

I was not sure how you generated the image tar ball. Will resurrect the check.

> Looks like some spurious changes to DataNode.java
I saw null pointer exceptions in that part of the code. Hence the check during upgrade tests.

> Indentation slightly off in loadLocalNameINodes
loadLocalNameINodes method is off in indentation (3 spaces instead of two). Any way I have
aligned the new line to the existing code.


> Updating the layout version from HDFS-1822 causes upgrade problems.
> -------------------------------------------------------------------
>
>                 Key: HDFS-1936
>                 URL: https://issues.apache.org/jira/browse/HDFS-1936
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.22.0, 0.23.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>            Priority: Blocker
>             Fix For: 0.22.0, 0.23.0
>
>         Attachments: HDFS-1936.3.patch, HDFS-1936.4.patch, HDFS-1936.6.patch, HDFS-1936.6.patch,
HDFS-1936.trunk.patch, hadoop-22-dfs-dir.tgz, hdfs-1936-with-testcase.txt
>
>
> In HDFS-1822 and HDFS-1842, the layout versions for 203, 204, 22 and trunk were changed.
Some of the namenode logic that depends on layout version is broken because of this. Read
the comment for more description.

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