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From "Sameer Paranjpye (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-66) dfs client writes all data for a chunk to /tmp
Date Mon, 06 Mar 2006 23:57:29 GMT
dfs client writes all data for a chunk to /tmp
----------------------------------------------

         Key: HADOOP-66
         URL: http://issues.apache.org/jira/browse/HADOOP-66
     Project: Hadoop
        Type: Bug
  Components: dfs  
    Versions: 0.1    
    Reporter: Sameer Paranjpye
     Fix For: 0.1


The dfs client writes all the data for the current chunk to a file in /tmp, when the chunk
is complete it is shipped out to the Datanodes. This can cause /tmp to fill up fast when a
lot of files are being written. A potentially better scheme is to buffer the written data
in RAM (application code can set the buffer size) and flush it to the Datanodes when the buffer
fills up.


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