Hi , I am seeing one weird behavior with HDP 2.4 with Ambari 2.2 . We have automated the HDP cluster creation and resize process using REST APIs. The problem I am seeing is as soon as the cluster comes up I add another host with host group "edge" having all clients . Somehow the request goes to ambari server and gets stuck in PENDING state from AMBARI UI. In ambari server logs I am seeing this -
*TopologyManager.processRequest: host name = bluedata-73.bdlocal was DECLINED_PREDICATE by LogicalRequest ID = 1* *13 Dec 2016 10:49:58,864 INFO [qtp-ambari-client-33] TopologyManager:541 - TopologyManager.processRequest: host name = bluedata-73.bdlocal was DECLINED_PREDICATE by LogicalRequest ID = 10* However after some time when I manually run the same script to add this host it seems to work fine and the host is correctly added. I speculated that *DECLINED_PREDICATE *may be because some other requests were pending so added some sleep in my script but it still kept getting stuck with *DECLINED_PREDICATE.* I looked at the TopologyManager code also but nothing seems to be clear for when would you get DECLINED_PREDICATE while trying to add host. Can someone please help me with this ? Thanks, Kartik
