@Xavier LIEUTIER how many Journaler nodes you have in cluster ? Make sure you have odd number. There must be at least three JournalNode daemons, since edit log modifications must be written to a majority of JournalNodes. This will allow the system to tolerate the failure of a single machine. You can also run more than three JournalNodes, but in order to actually increase the number of failures the system can tolerate, you should run an odd number of JournalNodes, (three, five, seven, etc.) Note that when running with N JournalNodes, the system can tolerate at most (N - 1) / 2 failures and continue to function normally. If the requisite quorum is not available, the NameNode will not format or start, and you will see an error similar to this: 12/10/01 17:34:18 WARN namenode.FSEditLog: Unable to determine input streams from QJM to [10.0.1.10:8485, 10.0.1.10:8486, 10.0.1.10:8487]. Skipping. java.io.IOException: Timed out waiting 20000ms for a quorum of nodes to respond. ... View more

@Banana Joe For H100 Unable to submit statement show databases like '*' ambari restart can resolve the issue. ... View more

@Pardeep Gorla yes, you can have kerberos installed/adopted without LDAP. Using AD/LDAP you can have centralized user management and also Level 1 of authentication security for cluster. kerberos is considered for Level2 security for the cluster. ... View more

@chennuri gouri shankar You can try installing ranger manually using below link - https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.0/bk_installing_manually_book/content/ch_installing_ranger_chapter.html ... View more

Thanks for the info. ... View more

kool .. it worked 🙂 ... View more

Just re-check this - https://community.hortonworks.com/questions/21395/unable-to-access-ambari-sandbox-24.html ... View more

Good to hear that it works. ... View more

Please do check open connection limit for zookeeper. ... View more