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https://issues.apache.org/jira/browse/HDFS-1060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicolas Spiegelberg updated HDFS-1060:
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Affects Version/s: 0.20-append
This should be pulled into the branch-0.20-append branch.
> 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: data-node, hdfs client
> Affects Versions: 0.21.0, 0.22.0, 0.20-append
> 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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