Optimize scalar to use distributed cache
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Key: PIG-1548
URL: https://issues.apache.org/jira/browse/PIG-1548
Project: Pig
Issue Type: Improvement
Components: impl
Reporter: Daniel Dai
Assignee: Thejas M Nair
Fix For: 0.8.0
Current scalar implementation will write a scalar file onto dfs. When Pig need
the scalar, it will open the dfs file directly. This puts a huge load to
namenode. We should use distributed cache for scalar file.
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