After an MRS cluster is created, you can create and submit jobs on the client. The client can be installed on nodes inside or outside the cluster.

Nodes inside the cluster: After an MRS cluster is created, the client has been installed on the master and core nodes in the cluster by default.
Nodes outside the cluster: You can install the client on nodes outside a cluster.

Based on the client location, log in to the node where the client is installed.
Run the following command to go to the client installation directory:
cd /opt/client
Run the following command to configure environment variables:
source bigdata_env
If the cluster is in security mode, run the following command to authenticate the user. In normal mode, user authentication is not required.
kinit Component service user
Run the Spark shell command. The following provides an example:
spark-beeline