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From "Brandon Li (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3229) add JournalProtocol RPCs to list finalized edit segments, and read edit segment file from JournalNode.
Date Mon, 09 Apr 2012 15:41:17 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13249883#comment-13249883
] 

Brandon Li commented on HDFS-3229:
----------------------------------

Todd, thanks for the comments! getEditLogManifest() call (or a likely one) could be used to
list the finalized logs on a JournalNode.

To copy edit segments, we may need to something different here. The proposal is to use the
same Journal RPC server to download edit segments instead of resorting HTTP. In that, the
JournalNode doesn't have to start an additional HTTP server which could cause some subtle
issues and make debugging more difficult.
                
> add JournalProtocol RPCs to list finalized edit segments, and read edit segment file
from JournalNode. 
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-3229
>                 URL: https://issues.apache.org/jira/browse/HDFS-3229
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>


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