Github user suryag10 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/22433#discussion_r219476048
  
    --- Diff: docs/running-on-kubernetes.md ---
    @@ -340,6 +340,39 @@ RBAC authorization and how to configure Kubernetes 
service accounts for pods, pl
     [Using RBAC 
Authorization](https://kubernetes.io/docs/admin/authorization/rbac/) and
     [Configure Service Accounts for 
Pods](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/).
     
    +## Running Spark Thrift Server
    +
    +Thrift JDBC/ODBC Server (aka Spark Thrift Server or STS) is Spark SQL’s 
port of Apache Hive’s HiveServer2 that allows
    +JDBC/ODBC clients to execute SQL queries over JDBC and ODBC protocols on 
Apache Spark.
    +
    +### Spark deploy mode of Client
    +
    +To start STS in client mode, excute the following command
    +
    +$ sbin/start-thriftserver.sh \
    +    --master k8s://https://<k8s-apiserver-host>:<k8s-apiserver-port>
    +
    +### Spark deploy mode of Cluster
    +
    +To start STS in cluster mode, excute the following command
    +
    +$ sbin/start-thriftserver.sh \
    +    --master k8s://https://<k8s-apiserver-host>:<k8s-apiserver-port> \
    +    --deploy-mode cluster
    +
    +The most basic workflow is to use the pod name (driver pod name incase of 
cluster mode and self pod name incase of client
    --- End diff --
    
    pod/container from which the STS command is executed


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