Example of how to restart the HS2 role using the Cloudera Manager API (in python) CM4.6

gistfile1.txt

#!/usr/bin/python

## **********************************************************************
## restart-hs2-role.py 
## 
## Example of how to restart the HS2 role in the Hive Service using the Cloudera Manager API
##
## Make sure to set the CM Host, CM Port, login, password, Cluster Name and Hive Service name
##  in the "Settings" section below
## 
## Usage: restart-hs2-role.py  
## 
## **********************************************************************

## ** imports *******************************

import sys
from cm_api.api_client import ApiResource


## ** Settings ******************************

## Cloudera Manager Host
cm_host = "localhost"
cm_port = "7180"

## Cloudera Manager login
cm_login = "admin"

## Cloudera Manager password
cm_password = <PASSWORD>

## Cluster Name
cluster_name = <CLUSTER-NAME>


## ******************************************

if len(sys.argv) != 1:
  print "Error: too many arguments; this script does not expect any arguments"
  print "Usage: restart-hs2-role.py"
  print "Example: restart-hs2-role.py"
  quit(1)

print "Restarting HIVERSERVER2 Role in the Hive Service on cluster '" + cluster_name + "'..."

## Get the CM api
api = ApiResource(server_host=cm_host, server_port=cm_port, username=cm_login, password=cm_password)

## Get the cluster
cluster = api.get_cluster(cluster_name)

## Get the HIVE Service
hive_service = cluster.get_service("hive")

## Get the HS2 Role for the Hive Service
for role in hive_service.get_all_roles():
  if role.type == "HIVESERVER2":
    hs2_role = role
    break

## Restart the Role
hive_service.restart_roles(hs2_role.name)

print "Restart command initiated!"