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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-3696) Create files with WebHdfsFileSystem goes OOM when file size is big
Date Fri, 27 Jul 2012 06:34:35 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HDFS-3696.
------------------------------------------

       Resolution: Fixed
    Fix Version/s: 1.2.0

I have committed this to 0.23 and branch-1.
                
> Create files with WebHdfsFileSystem goes OOM when file size is big
> ------------------------------------------------------------------
>
>                 Key: HDFS-3696
>                 URL: https://issues.apache.org/jira/browse/HDFS-3696
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Kihwal Lee
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Critical
>             Fix For: 1.2.0, 0.23.3
>
>         Attachments: h3696_20120724.patch, h3696_20120724_0.23.patch, h3696_20120724_b-1.patch
>
>
> When doing "fs -put" to a WebHdfsFileSystem (webhdfs://), the FsShell goes OOM if the
file size is large. When I tested, 20MB files were fine, but 200MB didn't work.  
> I also tried reading a large file by issuing "-cat" and piping to a slow sink in order
to force buffering. The read path didn't have this problem. The memory consumption stayed
the same regardless of progress.

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