Data Movement and Integration
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Configuring for Disaster Recovery in Releases Prior to HDP 2.5

MapReduce for Hive Replication

A temporary fix is needed in MapReduce for Hive replication. The string /etc/hadoop/conf must be added to the mapreduce.application.classpath property in mapred-site through Ambari, before /etc/hadoop/conf/secure. For example, the end of the parameter will look like: mapreduce.application.classpath=...:/etc/hadoop/conf:/etc/hadoop/conf/secure.

This is a temporary workaround for fixed in versions of HDP 2.4.2 and later. This workaround may cause MapReduce jobs to fail during rolling upgrades due to the underlying configuration changing during job execution.