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(Updated Dec. 27, 2014, 8:13 p.m.) Review request for Ambari, John Speidel, Mahadev Konar, and Nate Cole. Changes ------- Adding Nate Cole as a reviewer, per Mahadev's request. Repository: ambari Description ------- This patch fixes AMBARI-8934. Recent changes to the Hive stack definitions in Ambari have modified the ordering in which services start up in Hive. In particular, the MYSQL_SERVER component appears to startup during the INSTALL phase of a cluster deployment. This causes the ambari-server HeartbeatHandler to detect that the MYSQL_SERVER is up and running earlier, and the handler will then set the state directly on the ServiceComponentHost. Setting the state directly causes errors in the event handling in Ambari, and a ServiceComponentHostEvent request is handled to start the MYSQL_SERVER after it has already been started. This patch addresses this issue by modifing the ServiceComponentHost event handling code, such that requests for a component "START" are not considered failures if the component has already been started. Diffs ----- ambari-server/src/main/java/org/apache/ambari/server/state/cluster/ClusterImpl.java f80044e Diff: https://reviews.apache.org/r/29442/diff/ Testing ------- 1. Manually verified that a single-node HDP cluster that includes Hive can be deployed via a Blueprint. 2. Ran the ambari-server unit tests: "Results : Tests run: 2468, Failures: 0, Errors: 0, Skipped: 13" Thanks, Robert Nettleton
