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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1580) Add interface for generic Write Ahead Logging mechanisms
Date Fri, 01 Apr 2011 05:56:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13014414#comment-13014414
] 

Todd Lipcon commented on HDFS-1580:
-----------------------------------

Hi Ivan and Jitendra. I've posted a patch for the edit log branch to HDFS-1799 that is a subset
of this JIRA. It's different in that it doesn't make the interface pluggable, nor does it
cover log transfer capability yet. But you may be interested to take a look at that and see
if the interface seems to be headed in a direction that's compatible with your goals. I think
it should be -- I started by merging your patch here and then ripped things out until it was
the minimal change to just refactor the file-specific code out of FSEditLog as much as possible.

> Add interface for generic Write Ahead Logging mechanisms
> --------------------------------------------------------
>
>                 Key: HDFS-1580
>                 URL: https://issues.apache.org/jira/browse/HDFS-1580
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Ivan Kelly
>         Attachments: HDFS-1580+1521.diff, HDFS-1580.diff, generic_wal_iface.pdf, generic_wal_iface.pdf,
generic_wal_iface.pdf, generic_wal_iface.txt
>
>


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