If the same Node is getting down every time, it's worth checking the Memory utilization at the OS end. You can check the /var/log/messages of the NN host when the NN went down and check if the process is getting killed by an oom. ... View more

@Sadique1 Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future. Thanks ... View more

I have the same problem, but in my case JVM pause detections are happening every 15 mins and detecting between 28337ms, .. 853466ms pauses. ... View more

Hi @ditto  You can use API to start the services. To Stop and Start a CDH service, you could try to make use of the CM APIs such as the below, Start the service - POST /clusters/{clusterName}/services/{serviceName}/commands/start Stop the service - POST /clusters/{clusterName}/services/{serviceName}/commands/stop   https://cloudera.github.io/cm_api/apidocs/v6/path__clusters_-clusterName-_commands_stop.html https://cloudera.github.io/cm_api/apidocs/v6/path__clusters_-clusterName-_commands_start.html https://cloudera.github.io/cm_api/apidocs/v6/index.html ... View more

@hanumanth Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future.  Thanks ... View more