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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6633) Support reading new data in a being written file until the file is closed
Date Tue, 25 Nov 2014 07:02:14 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinayakumar B updated HDFS-6633:
--------------------------------
    Attachment: HDFS-6633-002.patch

Rebased vs latest trunk

> Support reading new data in a being written file until the file is closed
> -------------------------------------------------------------------------
>
>                 Key: HDFS-6633
>                 URL: https://issues.apache.org/jira/browse/HDFS-6633
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: hdfs-client
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Vinayakumar B
>         Attachments: HDFS-6633-001.patch, HDFS-6633-002.patch, h6633_20140707.patch,
h6633_20140708.patch
>
>
> When a file is being written, the file length keeps increasing.  If the file is opened
for read, the reader first gets the file length and then read only up to that length.  The
reader will not be able to read the new data written afterward.
> We propose adding a new feature so that readers will be able to read all the data until
the writer closes the file.



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