@Neeraj Sabharwal I encountered the same problem as @Bharathkumar B I'm unable to login to the ambari console with the same message as he: "unable to connect to Ambari server. Confirm ambari server is running and you can reach ambari server from this machine" I look at your video, and I did the same things, but unfortunately it did not resolve my problem. Please help me in fixing this issue. Thanks ! ... View more

@Rakesh Gupta excellent question, are you still having issues with this? Can you accept best answer or provide your own solution? ... View more

@Vitor Batista can you accept the best answer to close this thread or post your own solution? ... View more

@Jun Chen are you still having issues with this? Can you accept best answer or provide your own solution? ... View more

@John Smith are you still having issues with this? Can you accept best answer or provide your own solution? ... View more

@Neeraj Sabharwal I am still facing the same issue, can you please help. Ambari version been used here is 2.2.2.0 with postgresql 9.2.18 on rhel 7. This happens to us most of the time. I have made sure that agents on all hosts are running and are pointing toward the ambari server, iptables, selinux are disabled. /etc/hosts are updated correctly. I am registering Ambari blueprint via API through Ansible and then cluster creation template also via API through Ansible in automated way. What could be the reason behind this? ... View more

Thx @bsani We have sat HA on our name nodes while we don't want the cluster to be unawailable. So is there a best practice for doing patching on a cluster that is supposed to be available 24/7. How to avoid rebalancing during patching When upgrading datanodes in chuncks, is there a way to make sure that replica of a data block is available on one of the servers alive /Claus ... View more

the answer was given by Guilherme Braccialli . in your /tmp/<user>/hive.log you would see a message like this 2017-06-28 10:04:43,717 INFO [main]: parse.BaseSemanticAnalyzer (CalcitePlanner.java:canCBOHandleAst(397)) - Not invoking CBO because the statement has too few joins ... View more

@Brad Bukacek J Blog : https://www.linkedin.com/pulse/yarn-queues-hadoop-neeraj-sabharwal Capacity sheduler view has an option for user mapping format ... View more

Sure, please follow up on the internal ticket. ... View more