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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2003) Separate FSEditLog reading logic from editLog memory state building logic
Date Mon, 06 Jun 2011 14:23:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13044871#comment-13044871
] 

Hadoop QA commented on HDFS-2003:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12481572/HDFS-2003.diff
  against trunk revision 1132525.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/hudson/job/PreCommit-HDFS-Build/715//console

This message is automatically generated.

> Separate FSEditLog reading logic from editLog memory state building logic
> -------------------------------------------------------------------------
>
>                 Key: HDFS-2003
>                 URL: https://issues.apache.org/jira/browse/HDFS-2003
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: Edit log branch (HDFS-1073)
>            Reporter: Ivan Kelly
>            Assignee: Ivan Kelly
>             Fix For: Edit log branch (HDFS-1073)
>
>         Attachments: HDFS-2003.diff, HDFS-2003.diff, HDFS-2003.diff, HDFS-2003.diff
>
>
> Currently FSEditLogLoader has code for reading from an InputStream interleaved with code
which updates the FSNameSystem and FSDirectory. This makes it difficult to read an edit log
without having a whole load of other object initialised, which is problematic if you want
to do things like count how many transactions are in a file etc. 
> This patch separates the reading of the stream and the building of the memory state.


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