This is the documentation for CDH 4.7.0.
Documentation for other versions is available at Cloudera Documentation.

Apache Pig

— Hive, Pig, and Sqoop fail in MRv1 tarball installation because /usr/bin/hbase sets HADOOP_MAPRED_HOME to MR2

This problem affects tarball installations only.

Bug: None

Severity: High

Resolution: None; use workaround

Workaround: If you are using MRv1, edit the following line in /etc/default/hadoop from
 export HADOOP_MAPRED_HOME=/usr/lib/hadoop-mapreduce
export HADOOP_MAPRED_HOME=/usr/lib/hadoop-0.20-mapreduce 

In addition, /usr/lib/hadoop-mapreduce must not exist in HADOOP_CLASSPATH.

Pig fails to read Parquet file (created with Hive) with a complex field if schema not specified explicitly

Bug: None

Severity: Low

Workaround: Provide the schema of the fields in the LOAD statement.