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Date: Fri, 31 Aug 2012 15:05:08 +1100 (NCT)
From: "Eli Collins (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
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Subject: [jira] [Resolved] (HDFS-2782) HA: Support multiple shared edits
 dirs
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     [ https://issues.apache.org/jira/browse/HDFS-2782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eli Collins resolved HDFS-2782.
-------------------------------

          Resolution: Won't Fix
            Assignee:     (was: Eli Collins)
    Target Version/s:   (was: 0.24.0)

Given QJM (HDFS-3077) IMO this is no longer worth considering.
                
> HA: Support multiple shared edits dirs
> --------------------------------------
>
>                 Key: HDFS-2782
>                 URL: https://issues.apache.org/jira/browse/HDFS-2782
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: ha
>    Affects Versions: 0.24.0
>            Reporter: Aaron T. Myers
>
> Supporting multiple shared dirs will improve availability (eg see HDFS-2769). You may want to use multiple shared dirs on a single filer (eg for better fault isolation) or because you want to use multiple filers/mounts. Per HDFS-2752 (and HDFS-2735) we need to do things like use the JournalSet in EditLogTailer and add tests.

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