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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-3721) hsync support broke wire compatibility
Date Thu, 09 Aug 2012 21:19:19 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers reassigned HDFS-3721:
------------------------------------

    Assignee: Aaron T. Myers  (was: Todd Lipcon)
    
> hsync support broke wire compatibility
> --------------------------------------
>
>                 Key: HDFS-3721
>                 URL: https://issues.apache.org/jira/browse/HDFS-3721
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node, hdfs client
>    Affects Versions: 2.1.0-alpha
>            Reporter: Todd Lipcon
>            Assignee: Aaron T. Myers
>            Priority: Critical
>         Attachments: hdfs-3721.txt, hdfs-3721.txt
>
>
> HDFS-744 added support for hsync to the data transfer wire protocol. However, it actually
broke wire compatibility: if the client has hsync support but the server does not, the client
cannot read or write data on the old cluster.

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