@Leonid Fedotov Hortonworks is not officially supporting but if you want to install on 7.4 for learning purpose I'd say please go a head and give a try. It will work. I'm running my cluster on 7.3 and didn't see any issues. ... View more

@Jitendra Yadav But you can install Abari2.5.1 and HDP2.6 on Ubuntu16x if you wish. Here is the link: https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.1/bk_support-matrices/content/ch01.html ... View more

I ran into same issue but it's automatically fixed after re-starting my data node server (re-boot physical linux server). ... View more

@Mazin Mohamme for me it seems your ticket is going expire again in 24 hr."ExpiresService 07/24/2017 18:28:50" I think you need to change the ticket_lifetime = 7d as well. ... View more

Yes, it's related to Kerberos ticket issue, you can find the same in your Ambari->Kerberos->Kerberos Conf Template [libdefaults] renew_lifetime = 7d forwardable = true default_realm = {{realm}} ticket_lifetime = 24hr Possible solutions: 1) You need to work with AD team and change the password expire policy. Ensure that NN & other Ambari related principle should never expire ... View more

you can try this 1) Turn on Maintenance at HDFS level and data node level 2) decommission the data node 3) Stop all the service on data node 4) Mount data disk 5) add data disk in HDFS configuration 6) add data node to the cluster 7) re-start all the effected services. I would suggest you to create support ticket if you are having support license. Regards, Divakar ... View more

@Santhosh B Gowda Here you go:), this should work. beeline -u "jdbc:hive2://zk1:2181,zk2:2181,zk3:2181/;serviceDiscoveryMode=zooKeeper; zooKeeperNamespace=hiveserver2;principal=hive/_HOST@REALM" ... View more

Thank you Jay ... View more

@Vinay Khandelwal re-start Zookeeper and give a try again. ... View more