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From "Nigel Daley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1822) Editlog opcodes overlap between 20 security and later releases
Date Wed, 20 Apr 2011 05:29:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021970#comment-13021970
] 

Nigel Daley commented on HDFS-1822:
-----------------------------------

{quote}
Add code in 22 and trunk to throw an error if upgrade is from 203 or older 2xx releases and
editlog is not empty,...
{quote}
Doesn't seem like this "keeps branch-specific hackery confined to the branch".

> Editlog opcodes overlap between 20 security and later releases
> --------------------------------------------------------------
>
>                 Key: HDFS-1822
>                 URL: https://issues.apache.org/jira/browse/HDFS-1822
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.21.0, 0.22.0, 0.23.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>            Priority: Blocker
>             Fix For: 0.22.0, 0.23.0
>
>         Attachments: HDFS-1822.patch
>
>
> Same opcode are used for different operations between 0.20.security, 0.22 and 0.23. This
results in failure to load editlogs on later release, especially during upgrades.

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