Hi,   We recently removed three hosts from a cluster managed by Cloudera Manager 5.14.2. The IP addresses from these hosts were receycled and assigned to new hosts that does not have anything to do with the CDH cluster.  Hostnames for the new hosts are different from the ones that were removed from the cluster.   While disributing a parcel, we noticed that these hosts were still being contacted for parcel distribution.   cloudera-flood.log:[07/Jan/2019 16:30:15 +0000] 9658 MainThread torrent      INFO     Save torrent: {'dht_nodes_name': [('<ip_of_removed_hosts>', 7191), ('<ip_of_removed_hosts>', 7191),('<ip_of_removed_hosts>', 7191), ('<ip_of_host_in_cluster>', 7191),...], 'ti': <libtorrent.torrent_info object at 0x7f33c8451520>, 'max_uploads': 1, 'save_path': '/opt/cloud   We have checked the HOSTS table in scm databases and it does not contain any hosts with these IP addresses. Are these IPs cached somewhere or there is some configuration that is not exposed by Cloudera Manager where they might still be lingering around.   Thanks in advance. ... View more

Hi,   I was deploying Livy on CDH 5.5 using CM by defining custom CSD and parcels for it. After upgrading to CDH 5.8, now I'm unable to deploy instances of any new services. They wizard fails with the following error:   Timed out after 12000 ms. Waiting for Cloudera Manager Agents to detect release: LIVY_SERVER 1.0.0   Once the wizard fails, I'm able to start the new instances manually from the Actions menu.   Did something changes in the way parcel detection works between CM 5.5 and 5.8?   Thanks, Anand   ... View more

I have setup a CDH 5.8 using CM. Oozie is installed in non-HA mode and it was running fine. Then I moved one of the ZK instances from one node to another node. After this migration, all other services are working fine but Oozie fails to start with the following error log:   INFO org.apache.zookeeper.ClientCnxn SERVER[node2.mydomain] Opening socket connection to server localhost.localdomain/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error) WARN org.apache.zookeeper.ClientCnxn SERVER[node2.mydomain] Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081) I'm not sure why its looking for ZooKeeper even when HA is not configured. ... View more

Hi,   Is it possible to install Livy Spark Server with Cloudera Manager 5.5. I've CDH 5.5.0 on my cluster with Spark installed.   Also, I'm able to see the Spark Notebook option in Hue UI.   Regards, Anand ... View more