The Application Timeline Server (ATS) component of YARN configuration property changed with the HDP 2.1.3 release. If you install HDP 2.1.3 with Ambari 1.6.0, you must change the following YARN configuration property. Browse to Ambari Web > Services > YARN Configs and modify the following property:
yarn.timeline-service.store-class=org.apache.hadoop.yarn.server.timeline.LeveldbTimelineStore
Apache Jira: Ambari-6012
