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From Raymond Jennings III <raymondj...@yahoo.com>
Subject How can I syncronize writing to an hdfs file
Date Fri, 07 May 2010 14:31:54 GMT
I want to write to a common hdfs file from within my map method.  Given that each task runs
in a separate jvm (on separate machines) making a method syncronized will not work I assume.
 Are there any file locking or other methods to guarantee mutual exclusion on hdfs?

(I want to append to this file and I have the append option turned on.)  Thanks.


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