Hi Team, Due to infrastructure ownership change, I need to change the domain name example ah11.tech.com to ah11.infratech.com. All the IP address and hostname would be same.Kindly share the steps and process to do that and what kind of challenges could come. Thanks Piyush ... View more

Hi Team, How to upgrade the HDP 2.5 to 2.6 and what would the rollback plans if any thing went wrong. Kindly help I have document but not able to consolidate the step. ... View more

Hi Team, I am configuring Hortonworks 4 node cluster using local repositary. I have configured local repo and which is accessible from all 4 nodes browser but while applying the cmd yum install ambari-server , giving me below error. [root@ah01 ~]# yum install ambari-server Loaded plugins: fastestmirror, refresh-packagekit, security Setting up Install Process Loading mirror speeds from cached hostfile * base: centos.mirror.snu.edu.in * extras: centos.mirror.snu.edu.in * updates: centos.mirror.snu.edu.in http://repo.tcs.com/hdp/centos6/HDP-UT1ILS-1.1.0.20/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found" Trying other mirror. To address this issue please refer to the below knowledge base article https://access.redhat.com/articles/1320623 If above article doesn't help to resolve this issue please open a ticket with Red Hat Support. Error: Cannot retrieve repository metadata (repomd.xml) for repository: HDP-UTILS-1.1.0.20. Please verify its path and try again. Please help. ... View more

Hi Team, In Hadoop Security we uses multiple tools like Ranger, Knox, Sentry, Kerberos, TDE (Transparent Encryption in HDFS) , HDFS ACL's what are the key differences and what can be use to where , how we can decide. ... View more