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From "Arshak Navruzyan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-2185) determine how rfile block location impacts performance
Date Mon, 13 Jan 2014 18:24:52 GMT
Arshak Navruzyan created ACCUMULO-2185:
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             Summary: determine how rfile block location impacts performance
                 Key: ACCUMULO-2185
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2185
             Project: Accumulo
          Issue Type: Task
          Components: tserver
            Reporter: Arshak Navruzyan
            Priority: Minor


We should investigate and clearly spell out in the documentation:

1.  Location of RFile HDFS blocks vs. tserver assignments (is it true that "compaction leading
to eventual locality" and if not, why this isn't important)
2.  Recommended setting HDFS balancer 
3.  Recommended setting for HDFS short circuit reads

Good (but somewhat inconclusive) discussion here:

http://mail-archives.apache.org/mod_mbox/accumulo-user/201401.mbox/%3C13A9718A-F829-4DFE-ACD6-C5195FF4C253%40clearedgeit.com%3E




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