@LPottakkattil  Do the following  to resolve that problem Clean out all packages and meta data from cache # Update the system metadata yum clean all yum check-update # Update the system yum update # update the Java connect you don't need to stop Ambari yum install -y mysql-connector-java (Optional) ambari-server setup --jdbc-db=mysql --jdbc-driver=/usr/share/java/mysql-connector-java.jar   Hope that helps     ... View more

@Seeker90  Zookeepers by default are supposed to be running in an ensemble [french together] thats a quorum in English. Minimum number of servers required to run the Zookeeper is called Quorum. Zookeeper replicates whole data tree to all the quorum servers. This number is also the minimum number of servers required to store a client’s data before telling the client it is safely stored. Quorum size should be calculated by Majority Rule   Majority rule: QN = (N + 1) / 2   QN: Minimum number of servers in quorum N: Total number of servers. (should be an odd number) So, if we have 5 servers, then Quorum should be minimum of 3 servers. As long as a majority of the ensemble are up, the service will be available. Because Zookeeper requires a majority, it is best to use an odd number of machines  ZooKeeper uses Quorums by default to prevent the "brain split" phenomenon. That is, only more than half of the nodes in the cluster can vote for the Leader. This way can ensure the uniqueness of the leader,  Split-Brain is like when you have two nodes in your cluster, they both know that a master needs to be elected in this cluster. Then when there is no problem in the communication between the two of them, a consensus will be reached and one of them will be selected as the master. But if there is a problem with the communication between them, both nodes will feel that there is no master now, so each elects itself as the master, so there will be two masters in the cluster.   So to avoid the current problem you are facing add 2 more Zk'ers and that problem will vanish Happy hadooping    ... View more

@vidanimegh  Ye that s the usual format but I didn't want to complicate the  explanation  the alias is optionaél anyways. But you see the logic the 2 hosts must be pingable for  eachother.   Happy hadooping ... View more

@vidanimegh  What is the /etc/hosts entry  remember both hosts  /etc/hosts files should have the same entries?  On Source <source-nameservice> IP <destination-nameservice IP On destination <source-nameservice> IP <destination-nameservice IP   Please let me know      ... View more

@vidanimegh  Can you try it differently like below and let me know?   hadoop distcp -D ipc.client.fallback-to-simple-auth-allowed=true hdfs://<source-nameservice>/path/to/source/folder hdfs://<destination-nameservice>/path/to/destination/folder     Always try to use nameservice !   ... View more

@TDStephanieSoft  I am highly suspecting you download the  HDF 3.1.1 instead of HDP 3.0.1  because the links are on the same page     Please verify that you are really trying to access HDP. Can you double check the ova file you downloaded? if you see 3.1.1 then you downloaded HDF aka Nifi Hope that helps   ... View more

@shaz11    Can you share the screenshot of your policy in Ranger ? Once you enable Ranger plugin then the authorization is automatically delegated to Ranger so for any user to access the hive tables the permissions should be explicitly given from Ranger!   Hope that helps! ... View more

@swapko  That's bizarre can you share your step? and source of download? ... View more

@emeric  https://www.linkedin.com/in/sheltong/   ... View more

@emeric  Same name and photo on linkedin profile.  ... View more