The configuration changes to use YARN as the MapReduce execution framework
The binary / source compatibility while working with MapReduce APIs
In this section, we'll discuss the configuration changes required during migration from MRv1 to MRv2. The information provided in this section is limited to the minimum configuration changes required during the migration. Detailed information regarding the deprecated and new properties is provided in a Cloudera blog at https://www.cloudera.com/content/cloudera/en/documentation/core/v5-2-x/topics/cdh_ig_mapreduce_to_yarn_migrate.html.
The upcoming sections describe the changes while migrating from MRv1 to MRv2.