You are viewing a plain text version of this content. The canonical link for it is here.

Posted to hdfs-dev@hadoop.apache.org by "Arun C Murthy (JIRA)" <ji...@apache.org> on 2010/08/10 18:41:16 UTC

[jira] Created: (HDFS-1338) Improve TestDFSIO

Improve TestDFSIO
-----------------

                 Key: HDFS-1338
                 URL: https://issues.apache.org/jira/browse/HDFS-1338
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Arun C Murthy


Currently the read test in TestDFSIO benchmark just opens a large side file and measures the read performance. The MR scheduler has no opportunity to do *any* optimization for the TestDFSIO MR application. The side-effect of this is that it is *very* hard to do any meaningful analysis of the results of the benchmark i.e. to check if node-local or rack-local or off-switch read performance improved/degraded.


-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.