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Date: Fri, 21 Aug 2015 18:01:48 +0000 (UTC)
From: "Colin Patrick McCabe (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12850700.1438377360000.132184.1440180108956@Atlassian.JIRA>
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Subject: [jira] [Commented] (HDFS-8846) Create edit log files with old
 layout version for upgrade testing
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    [ https://issues.apache.org/jira/browse/HDFS-8846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14707164#comment-14707164 ] 

Colin Patrick McCabe commented on HDFS-8846:
--------------------------------------------

Looks good overall!  Can we test reading a few different events rather than just the CreateEvent?  And perhaps also test reading by transaction ID.  (i.e. if we poll a transaction ID that's too high, we get nothing... if we look for one that exists in the old edit logs, we start right there).  +1 once that's addressed

> Create edit log files with old layout version for upgrade testing
> -----------------------------------------------------------------
>
>                 Key: HDFS-8846
>                 URL: https://issues.apache.org/jira/browse/HDFS-8846
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.7.1
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-8846.00.patch, HDFS-8846.01.patch, HDFS-8846.02.patch
>
>
> Per discussion under HDFS-8480, we should create some edit log files with old layout version, to test whether they can be correctly handled in upgrades.


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