This is the documentation for CDH 5.1.x.
Documentation for other versions is available at Cloudera Documentation.

Setting HADOOP_MAPRED_HOME

  • For each user who will be submitting MapReduce jobs using MapReduce v2 (YARN), or running Pig, Hive, or Sqoop in a YARN installation, make sure that the HADOOP_MAPRED_HOME environment variable is set correctly, as follows:
    $ export HADOOP_MAPRED_HOME=/usr/lib/hadoop-mapreduce
  • For each user who will be submitting MapReduce jobs using MapReduce v1 (MRv1), or running Pig, Hive, or Sqoop in an MRv1 installation, set the HADOOP_MAPRED_HOME environment variable as follows:
    $ export HADOOP_MAPRED_HOME=/usr/lib/hadoop-0.20-mapreduce