question Re: Is there any possibility to decommission the node through REST API? in Archives of Support Questions (Read Only)

Is there any possibility to decommission the node through REST API?

prasad4u_com — Tue, 01 Mar 2016 23:46:46 GMT

I am looking to decommission the node through REST API.

Re: Is there any possibility to decommission the node through REST API?

aervits — Tue, 01 Mar 2016 23:52:33 GMT

@Ram D https://cwiki.apache.org/confluence/display/AMBARI/API+to+decommission+DataNodes+and+NodeManagers

Re: Is there any possibility to decommission the node through REST API?

prasad4u_com — Tue, 01 Mar 2016 23:58:01 GMT

Thank you @Artem Ervits.

Re: Is there any possibility to decommission the node through REST API?

prasad4u_com — Wed, 02 Mar 2016 00:10:22 GMT

curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari'-X PUT -d

'{"RequestInfo": {"context" :"Start HDFS via REST"}, "Body": {"ServiceInfo": {"state": "STARTED"}}}'

http://`hostname -f`:8080/api/v1/clusters/$CLUSTER_NAME/services/HDFS

In the above curl command, what is the meaning for "hostname -f". I am new to usage of REST APIs, it may be a stupid question. I would like to get clear idea for the above command.

Re: Is there any possibility to decommission the node through REST API?

aervits — Wed, 02 Mar 2016 00:47:05 GMT

@Ram D ah ok, yes in this example you will get FQDN of the server name for URL. I didn't know you can do that in curl command but basically if you run hostname -f as Linux command, you will get FQDN of your host. In context of the curl command, it will populate the URL programmatically with FQDN instead of using the node name explicitly.