hi all we have small cluster ( ambari version - 2.6.1 ) 3 masters machines 3 kafka machines 3 workers machines is it possible to removed completely the HDP , for new fresh HDP version ? Now we have HDP - 2.6.5 And we want to install new HDP - 2.6.4 ... View more

hi all is it necessary to restart the ambari server after we delete ambari service by REST API ? I as asking because after we delete some service from the ambari by API we saw that service really Disappeared from ambari dartboard so I not sure if we need also to restart the ambari server to take affect? ... View more

hi all under /var/log/zookeeper , we have the zookeeper logs , as the following -rw-r--r-- 1 zookeeper hadoop 104857712 Jul  5 15:54 zookeeper-zookeeper-server-master.sys87.com.log.1 -rw-r--r-- 1 zookeeper hadoop       177 Jul 16 11:57 zookeeper-zookeeper-server-master.sys87.com.out -rw-r--r-- 1 zookeeper hadoop  66358998 Jul 16 23:15 zookeeper-zookeeper-server-master.sys87.com.log the problem is that we get only the INFO severity from the logs! and when we set the TRCE severity , and restart the zookeeper service , then its not change the zookeeper log content to trace mode, can we get example of log4j for zookeeper ? we suspect that our log4j isn't configured properly ... View more

hi all we have two spark thrift servers component in our ambari cluster one thrift server is on master01 machine and the second is on master03 machine how to stop the thrift server component on master01 and master03 machine by REST API ... View more

hi all by the following API we can delete the thrift server component on master01 and master03 nodes # curl -iv -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://$AMBARI_SERVER:8080/api/v1/clusters/hdp/hosts/master01/host_components/SPARK2_THRIFTSERVER # curl -iv -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://$AMBARI_SERVER:8080/api/v1/clusters/hdp/hosts/master03/host_components/SPARK2_THRIFTSERVER but how to know by REST API that thrift server component , not defined on specific node ( after deletion ) ... View more

hi all we upgrade today the ambari version and HDP version rpm -qa | grep -i ambari ambari-metrics-monitor-2.6.2.2-1.x86_64 ambari-metrics-collector-2.5.0.3-7.x86_64 ambari-agent-2.6.2.2-1.x86_64 ambari-server-2.6.2.2-1.x86_64 ambari-metrics-grafana-2.6.2.2-1.x86_64 ambari-metrics-hadoop-sink-2.6.2.2-1.x86_64 when we login to ambari and to stack and version we not seen any info about the ambari new version - 2.6.2.2 why? this info not in stak and version ? ... View more

hi all what is the normal gap between machines in ambari cluster in seconds? for example ( the following example described gap of 20 seconds ) on master01 Fri Jul 5 07:37:23 UTC 2019 but on kafka machine we have Fri Jul 5 07:37:43 UTC 2019 ... View more