Rohini Palaniswamy created PIG-2912:
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             Summary: Pig should clone JobConf while creating JobContextImpl 
and TaskAttemptContextImpl in Hadoop23
                 Key: PIG-2912
                 URL: https://issues.apache.org/jira/browse/PIG-2912
             Project: Pig
          Issue Type: Bug
    Affects Versions: 0.9.3, 0.10.1
            Reporter: Rohini Palaniswamy
            Assignee: Rohini Palaniswamy
             Fix For: 0.9.3, 0.11, 0.10.1


There is change in the semantics of
JobContext::JobContext(Configuration, JobID). While in .20, the Config was
cloned, in .23 the Config is adopted (if it's a JobConf). This causes the same
Configuration instance to be written-to for different tables in the same job.

It would affect multi store commands in pig on Hadoop 23/2.0. The
cloning in HadoopShims was part of PIG-2578 but was reverted to other issues.

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