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Date: Wed, 31 Mar 2010 06:54:27 +0000 (UTC)
From: "stack (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Updated: (HDFS-1024) SecondaryNamenode fails to checkpoint
 because namenode fails with CancelledKeyException
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     [ https://issues.apache.org/jira/browse/HDFS-1024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HDFS-1024:
------------------------

    Attachment: HDFS-1024.patch.1-0.20.txt

A patch for 0.20.

There doesn't seem to be any reason why 0.20 doesn't have the same issue (and so in 0.20 the 2NN could hand back half an fsimage).

Testing the patch now.  Will reporrt if all passes.

> SecondaryNamenode fails to checkpoint because namenode fails with CancelledKeyException
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-1024
>                 URL: https://issues.apache.org/jira/browse/HDFS-1024
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.20.1, 0.20.2, 0.20.3, 0.21.0, 0.22.0
>            Reporter: dhruba borthakur
>            Assignee: Dmytro Molkov
>            Priority: Blocker
>             Fix For: 0.22.0
>
>         Attachments: HDFS-1024.patch, HDFS-1024.patch.1, HDFS-1024.patch.1-0.20.txt
>
>
> The secondary namenode fails to retrieve the entire fsimage from the Namenode. It fetches a part of the fsimage but believes that it has fetched the entire fsimage file and proceeds ahead with the checkpointing. Stack traces will be attached below.

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