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Posted to dev@flume.apache.org by "Mike Percy (JIRA)" <ji...@apache.org> on 2013/02/28 07:51:13 UTC

[jira] [Updated] (FLUME-1916) HDFS sink should poll for # of active replicas. If less than required, roll the file.

     [ https://issues.apache.org/jira/browse/FLUME-1916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mike Percy updated FLUME-1916:
------------------------------

    Attachment: FLUME-1916.patch
    
> HDFS sink should poll for # of active replicas. If less than required, roll the file.
> -------------------------------------------------------------------------------------
>
>                 Key: FLUME-1916
>                 URL: https://issues.apache.org/jira/browse/FLUME-1916
>             Project: Flume
>          Issue Type: Bug
>          Components: Sinks+Sources
>    Affects Versions: v1.3.1
>            Reporter: Mike Percy
>             Fix For: v1.4.0
>
>         Attachments: FLUME-1916.patch
>
>
> Add functionality to the HDFS sink which constantly polls the number of replicas for files being written. If the number of replicas drops below 3 (or specified number), it should immediately close the HDFS output file and start a new file that should be able to create a pipeline with the correct number of replicas.
> This is the same behavior taken by HBase for its write-ahead log (WAL) and should help us avoid hitting the more complex corner cases around failed close() calls.

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