capture.png I'm running on HDP 2.3 hosted on AWS and Ambari version is 2.1 NameNode HA is enabled and I can see two name nodes as active in the Ambari. Attached screenshot for reference. ZookeeperFailControllers are running fine. When I Start HDFS from command line using the below command, the namenode service on the node from which I execute the command is working and causing the other name node to stop. sudo -u hdfs /usr/hdp/2.3.6.0-3796/hadoop/sbin/hadoop-daemon.sh start namenode I formatted Zookeeper and restartwed HDFS, still no luck. When I open zkCli and checked, there is no ActiveStandbyElectorLock and I found the ephermal node value as 0*0 Any help would be appreciated. Thanks, Sai Dileep. ... View more

I'm running hdp 2.3.6 on AWS. I restart zookeeper server & it starts without any error but quickly stops. The stderr has no entries. I'd appreciate any help to debug this issues. Thanks in advance, Sai Dileep. ... View more

I have installed nifi-0.6.0.1.2.0.1-1 on Hortonworks sandbox. When I run the service using the commands, it is showing that service is running successfully. However, I couldn't get UI on the browser to build a DataFlow. INFO [main] org.apache.nifi.bootstrap.Command Apache NiFi is currently running, listening to Bootstrap on port 50355, PID=26547 *Firewall is switched off * Modified the Nifi port number to 9090 on nifi.properties file ... View more