Database Reference
In-Depth Information
the cluster or any specific component, Maintenance Mode helps to reduce unneces-
sary change notifications to all users and keeps the noise due to maintenance very
low. The following screenshot shows how you can set your Cloudera Hadoop cluster
into Maintenance Mode:
Checking Impala events
Using Cloudera Manager, you can track various events that are generated by Impala,
events such as activity, error code, file access, user access, exception, command
execution, role, and several others listed in the
Diagnose
drop-down list, as shown
in the following screenshot:
