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Date: Sun, 10 Jul 2011 19:42:00 +0000 (UTC)
From: "Ivan Kelly (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-2018) Move all journal stream management
 code into one place
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     [ https://issues.apache.org/jira/browse/HDFS-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ivan Kelly updated HDFS-2018:
-----------------------------

    Attachment: HDFS-2018.diff

New patch addresses all of Todd's comments accept two about getEditLogManifest. Will address that in another comment.

> Move all journal stream management code into one place
> ------------------------------------------------------
>
>                 Key: HDFS-2018
>                 URL: https://issues.apache.org/jira/browse/HDFS-2018
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Ivan Kelly
>            Assignee: Ivan Kelly
>             Fix For: Edit log branch (HDFS-1073)
>
>         Attachments: HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff, HDFS-2018.diff
>
>
> Currently in the HDFS-1073 branch, the code for creating output streams is in FileJournalManager and the code for input streams is in the inspectors. This change does a number of things.
>   - Input and Output streams are now created by the JournalManager.
>   - FSImageStorageInspectors now deals with URIs when referring to edit logs
>   - Recovery of inprogress logs is performed by counting the number of transactions instead of looking at the length of the file.
> The patch for this applies on top of the HDFS-1073 branch + HDFS-2003 patch.

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