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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-7098) Support polling for more data from a write-in-progress file using same DFSInputStream
Date Fri, 19 Sep 2014 16:43:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinayakumar B resolved HDFS-7098.
---------------------------------
    Resolution: Duplicate

Duplicate created due to slow internet

> Support polling for more data from a write-in-progress file using same DFSInputStream
> -------------------------------------------------------------------------------------
>
>                 Key: HDFS-7098
>                 URL: https://issues.apache.org/jira/browse/HDFS-7098
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>
> Currently DFSInputStream can read only till the bytes written which were written by the
time of Opening it for reading. 
> But, later there can be more bytes written to same file.
> If client expects more data to  be available, then client can poll it continuously for
more data without re-opening the stream.
> One simple example use case for this is tailing logs files.
> Currently LocalFileSystem supports this.



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