Cheng Lian created SPARK-9593:
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Summary: Hive ShimLoader loads wrong Hadoop shims when Spark is
compiled against Hadoop 2.0.0-mr1-cdh4.1.1
Key: SPARK-9593
URL: https://issues.apache.org/jira/browse/SPARK-9593
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.5.0
Reporter: Cheng Lian
Assignee: Cheng Lian
Priority: Blocker
Internally, Hive {{ShimLoader}} tries to load different versions of Hadoop
shims by checking version information gathered from Hadoop jar files. If the
major version number is 1, {{Hadoop20SShims}} will be loaded. Otherwise, if
the major version number is 2, {{Hadoop23Shims}} will be chosen. However, CDH
Hadoop versions like 2.0.0-mr1-cdh4.1.1 have 2 as major version number, but
contain Hadoop 1 code. This confuses Hive {{ShimLoader}} and loads wrong
version of shims.
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