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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1799) Refactor log rolling and filename management out of FSEditLog
Date Fri, 29 Apr 2011 05:24:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13026851#comment-13026851
] 

Todd Lipcon commented on HDFS-1799:
-----------------------------------

Hi Jitendra,

Given it seems there's still a lot of discussion to be had around the interface proposed in
HDFS-1580, I'd really like to move forward with this patch. It's been blocking work on HDFS-1073
for several weeks now, and everyone seems to agree that 1073 is crucial for the next release.

Do you have some specific criticisms of this patch, or is it just that you'd like to go further
with the changes to make it more like HDFS-1580? I don't see how committing this patch now
precludes further work on the API. But continuing to keep this open _is_ precluding further
work on 1073. Meanwhile I will continue to look at 1580 and participate in discussion/review
there.

> Refactor log rolling and filename management out of FSEditLog
> -------------------------------------------------------------
>
>                 Key: HDFS-1799
>                 URL: https://issues.apache.org/jira/browse/HDFS-1799
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: Edit log branch (HDFS-1073)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: Edit log branch (HDFS-1073)
>
>         Attachments: 0001-Added-state-management-to-FSEditLog.patch, 0002-Standardised-error-pattern.patch,
0003-Add-JournalFactory-and-move-divert-revert-out-of-FSE.patch, HDFS-1799-all.diff, hdfs-1799.txt,
hdfs-1799.txt, hdfs-1799.txt
>
>
> This is somewhat similar to HDFS-1580, but less ambitious. While that JIRA focuses on
pluggability, this task is simply the minimum needed for HDFS-1073:
> - Refactor the filename-specific code for rolling, diverting, and reverting log streams
out of FSEditLog into a new class
> - Clean up the related code in FSEditLog a bit
> Notably, this JIRA is going to temporarily break the BackupNode. I plan to circle back
on the BackupNode later on this branch.

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