Change the size of Tuple from Int to VInt when Serialize Tuple
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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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