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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8480) Fix performance and timeout issues in HDFS-7929: use hard-links instead of copying edit logs
Date Fri, 05 Jun 2015 02:10:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573947#comment-14573947
] 

Colin Patrick McCabe commented on HDFS-8480:
--------------------------------------------

Maybe I can take a look in a little bit...

> Fix performance and timeout issues in HDFS-7929: use hard-links instead of copying edit
logs
> --------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8480
>                 URL: https://issues.apache.org/jira/browse/HDFS-8480
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>            Priority: Critical
>
> HDFS-7929 copies existing edit logs to the storage directory of the upgraded {{NameNode}}.
This slows down the upgrade process. This JIRA aims to use hard-linking instead of per-op
copying to achieve the same goal.



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