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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1073) Simpler model for Namenode's fs Image and edit Logs
Date Wed, 20 Jul 2011 01:02:08 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068110#comment-13068110
] 

Todd Lipcon commented on HDFS-1073:
-----------------------------------

TestEditLogFileOutputStream was failing because it depended on the exact byte length of a
mkdirs op. I'd written it with username 'todd', whereas the test ran with username 'hudson'
- hence the mkdirs had a longer username and took 2 more bytes when running in the build.
I just committed a small change (r1148591) to the test to only verify that the log length
increased, rather than some specific length.

> Simpler model for Namenode's fs Image and edit Logs 
> ----------------------------------------------------
>
>                 Key: HDFS-1073
>                 URL: https://issues.apache.org/jira/browse/HDFS-1073
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 0.23.0
>            Reporter: Sanjay Radia
>            Assignee: Todd Lipcon
>             Fix For: 0.23.0
>
>         Attachments: hdfs-1073-editloading-algos.txt, hdfs-1073-merge.patch, hdfs-1073.txt,
hdfs1073.pdf, hdfs1073.pdf, hdfs1073.pdf, hdfs1073.tex
>
>
> The naming and handling of  NN's fsImage and edit logs can be significantly improved
resulting simpler and more robust code.

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