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Review request for Ambari, Dmytro Sen, Sumit Mohanty, and Sid Wagle. Bugs: AMBARI-15692 https://issues.apache.org/jira/browse/AMBARI-15692 Repository: ambari Description ------- AMS-Collector host had the environment variable HBASE_HOME=/usr/lib/hbase defined somewhere in the system. AMS user somehow inherited this environment variable. When AMS-Collector started, he would start the embedded HBase which would use the incorrect environment variable and failed to start (/usr/lib/hbase was missing many JARs). AMS-HBase's hbase-env.sh script should explicitly set the HBASE_HOME to its own path and not fail due to some incorrect environment variable. Diffs ----- ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog240.java f4a0b8c ambari-server/src/main/resources/common-services/AMBARI_METRICS/0.1.0/configuration/ams-hbase-env.xml 378138b Diff: https://reviews.apache.org/r/45696/diff/ Testing ------- Manually tested on cluster where AMS co-existed with cluster HBase. Thanks, Aravindan Vijayan