Costin Leau created PIG-4592:
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Summary: Pig 0.15 stopped working with Hadoop 1.x
Key: PIG-4592
URL: https://issues.apache.org/jira/browse/PIG-4592
Project: Pig
Issue Type: Bug
Components: build
Affects Versions: 0.15.0
Environment: Hadoop 1.x and pig.jar retrieved from Maven
Reporter: Costin Leau
Priority: Blocker
It looks like the Maven jar for Pig 0.15 is built against Hadoop 1.x instead of
Hadoop 2.x.
Running Pig 0.15 against a Hadoop 1 environment (which works fine in 0.14)
triggers a storm of class not found exceptions for classes in Hadoop 2 (like
org/apache/hadoop/mapreduce/task/JobContextImpl).
The culprit seems to be the HadoopShim included in 0.15 which is different from
0.14 (and previous) - it's part of hadoop23 instead of hadoop20 package
(whatever that means).
As it stands right now, using Pig 0.15 from Maven (common case) with Hadoop 1.x
is impossible.
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