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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6017) NameNode and SecondaryNameNode fail to restart because of abnormal filenames.
Date Fri, 12 Jun 2009 03:08:07 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Raghu Angadi updated HADOOP-6017:

    Attachment: HADOOP-6017-branch-18.patch

+1. The patch looks good.

I am attaching the patch 0.18 branch. 

There are more changes required for TestRenameWhileOpen.java since the rename test that the
new test is part of was disabled in 0.18. This patch enables parts of the test.

> NameNode and SecondaryNameNode fail to restart because of abnormal filenames.
> -----------------------------------------------------------------------------
>                 Key: HADOOP-6017
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6017
>             Project: Hadoop Core
>          Issue Type: Bug
>    Affects Versions: 0.18.3
>            Reporter: Raghu Angadi
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Blocker
>             Fix For: 0.18.4, 0.19.2, 0.20.1, 0.21.0
>         Attachments: 6017_20090611.patch, 6017_20090611b.patch, HADOOP-6017-branch-18.patch
> SecondaryNameNode (and NameNode) fail to load the edits log.  I will include stack trace
in next comment.
> This is traced to the fact that LeaseManager uses {{String.relaceFirst()}} to replace
front of a sting with another string. Unfortunately {{replaceFirst()}} uses regex, though
the first argument is {{quoted}} by the code, the second argument is not. (the second arg
is not really treated as regex but still gets processed for back references (as in '{{sed
> As Nicholas suggested, it is just simpler to use {{substring()}} to replace part of the

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