is there any way to start/stop/validate hadoop cluster via command line?

[#1]

Hi,

We are trying to automate the patching process. we are trying to create a script with start/stop/validate commands. can anyone help if there is any steps for this.

[#2]

@rkottaru For HDP refer below doc for start/stop services. 

https://docs.cloudera.com/HDPDocuments/HDP3/HDP-3.1.0/administration/content/starting_hdp_services.h...

[#3]

Thanks for the response, i tried to use below curl command to turn on/off maintenance mode but failed.

curl -u user -H "X-Requested-By:ambari" -i -X PUT -d '{"RequestInfo":{"context:"Turn Off Maintenance Mode for host","query":"Hosts/host_name.in(host1,host2)"},"Body":{"Hosts":{"maintenance_state":"OFF"}}}' http://ambari_host:8080/api/v1/clusters/comcastdrcluster/hosts

can someone please advise if we have anyother commands that we can use to turn on/off maintenance mode.

Thanks

Reshma