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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5645) Support upgrade marker in editlog streams
Date Thu, 09 Jan 2014 16:22:52 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13866749#comment-13866749
] 

Tsz Wo (Nicholas), SZE commented on HDFS-5645:
----------------------------------------------

TestOfflineEditsViewer needs the binary edit log file.

TestPersistBlocks is not related. Filed HDFS-5747.

> Support upgrade marker in editlog streams
> -----------------------------------------
>
>                 Key: HDFS-5645
>                 URL: https://issues.apache.org/jira/browse/HDFS-5645
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: editsStored, h5645_20130103.patch, h5645_20130109.patch
>
>
> During upgrade, a marker can be inserted into the editlog streams so that it is possible
to roll back to the marker transaction.



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