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From "Jeff Zhang (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-1426) Change the size of Tuple from Int to VInt when Serialize Tuple
Date Mon, 24 May 2010 05:14:38 GMT
Change the size of Tuple from Int to VInt when Serialize Tuple
--------------------------------------------------------------

                 Key: PIG-1426
                 URL: https://issues.apache.org/jira/browse/PIG-1426
             Project: Pig
          Issue Type: Improvement
          Components: data
    Affects Versions: 0.8.0
            Reporter: Jeff Zhang
            Assignee: Jeff Zhang
             Fix For: 0.8.0


Most of  time,  the size of tuple is not very large, one byte is enough for store the size
of tuple. So I suggest to use VInt instead of Int for the size of tuple when doing Serialization.
Because the key type of map output is Tuple, so this can reduce the amount of data transferred
from mapper to reducer. 

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