Setting the Job Tracker node 

Steps to set the Job Tracker node for all DSE Analytics nodes.

There are several ways to set the Job Tracker node for all DSE Analytics nodes.
  • You can use the dsetool setjt command to explicitly set the Job Tracker nodes.
  • You can use the dsetool autojt to have DataStax enterprise automatically select Job Trackers.
The location of the cassandra.yaml file depends on the type of installation:
Package installations /etc/dse/cassandra/cassandra.yaml
Tarball installations install_location/resources/cassandra/conf/cassandra.yaml

Hive clients automatically select the correct Job Tracker node on startup. You configure and manage the Job Tracker node for an analytics node using dsetool commands.

About the reserve Job Tracker 

DataStax Enterprise nominates a node in the cluster as a reserve Job Tracker for a data center. The reserve Job Tracker becomes the Job Tracker when, for some reason, there is no local node in the data center that can function as Job Tracker.

The dsetool setrjt command sets the reserve Job Tracker.