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From "MaoYuan Xian (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HAMA-761) Improvement for GraphJobMessage comparation operation
Date Sat, 08 Jun 2013 16:38:21 GMT
MaoYuan Xian created HAMA-761:
---------------------------------

             Summary: Improvement for GraphJobMessage comparation operation
                 Key: HAMA-761
                 URL: https://issues.apache.org/jira/browse/HAMA-761
             Project: Hama
          Issue Type: Improvement
          Components: graph
    Affects Versions: 0.6.1
            Reporter: MaoYuan Xian
            Assignee: MaoYuan Xian


Currently, GraphJobMessage comparation opertion depends on the default comparator (org.apache.hadoop.io.WritableComparator
used), which has to read out all GraphJobMessage message (including key and value) when does
the comparation. 
Since lots of comparation operations happen in graph computing, this limitation makes a performance
downgrade.

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