Did you get this working? I was facing the same issue and I get it working by removing the configuration documeted in the Sentry setup: Configuring Impala as a Client for the Sentry Service Set the following configuration properties in sentry-site.xml. <property> <name>sentry.service.client.server.rpc-port</name> <value>3893</value> </property> <property> <name>sentry.service.client.server.rpc-address</name> <value>hostname</value> </property> <property> <name>sentry.service.client.server.rpc-connection-timeout</name> <value>200000</value> </property> <property> <name>sentry.service.security.mode</name> <value>none</value> </property>   ... View more

Hi Darren:   I basically did what you prescribed, and it resolved the issue. I'll mark it as solved.   Thank you again, prismal ... View more

Hi Mugi, The docs I linked offer some guidance for things like max connections, which can help determine the sizing of your DB hardware. Usually the DB load from CM and monitoring is not extreme, but for 20+ node clusters we recommend splitting all monitoring roles and databases to be on a separate host than CM server to spread the load. How many can be shared on a host depends on cluster size. I'm frankly not an expert in this area, but others may be able to chime in. You can also of course get official support for your cluster and get reliable access to this kind of expertise (</shameless plug>). Thanks, Darren ... View more

> I think that you clicked activate parcel, it prompted you to restart, and you thought that was an upgrade wizard > when in fact it was just a simple cluster restart.   agreed.    > We're making improvements to this specific experience as well.     Understood.   Thank you for the explanation.      ... View more

Thanks. This clarifies the issue.   Very Very Sorry for not responding earlier. ... View more

Glad it helped! ... View more

Impala is part of CDH 5. So to upgrade impala, you upgrade all of CDH. You don't upgrade CDH "first". That's the only step. Be sure to follow the Cloudera Manager documentation for upgrades, as CDH5.2 has special upgrade steps. First upgrade Cloudera Manager: http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/cm_ag_upgrading_cm.html Then upgrade CDH: http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/cm_mc_upgrade_to_cdh52.html ... View more