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 datacenter that can function as Job Tracker.
The dsetool setrjt
command
sets the reserve Job Tracker.