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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-1060) Append/flush should support concurrent "tailer" use case
Date Wed, 30 Jul 2014 16:58:41 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Allen Wittenauer resolved HDFS-1060.

    Resolution: Won't Fix

Closing as Won't Fix.  If you need append, use 2.x+

> Append/flush should support concurrent "tailer" use case
> --------------------------------------------------------
>                 Key: HDFS-1060
>                 URL: https://issues.apache.org/jira/browse/HDFS-1060
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, hdfs-client
>    Affects Versions: 0.20-append, 0.21.0, 0.22.0
>            Reporter: Todd Lipcon
>         Attachments: hdfs-1060-tests.txt
> Several people have a usecase for a writer logging edits and using hflush() while one
or more readers "tails" the file by periodically reopening and seeking to get the latest bytes.
Currently there are several bugs. Using this ticket as a supertask for those bugs (and to
add test cases for this use case)

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