https://community.cloudera.com/t5/Archives-of-Support-Questions/API-how-to-know-by-API-command-all-machines-in-ambari/m-p/226660#M67102 <P> You can get the JSON response. </P><P> <A href="https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/hosts.md" target="_blank">https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/hosts.md</A> </P> <PRE><A href="http://ambari-server:8080/clusters/:clusterName/hosts" target="_blank">http://ambari-server:8080/clusters/:clusterName/hosts</A> </PRE><P> To extract the hostnames easier, you could try JSONPath</P> <PRE>$.items[*].Hosts.host_name </PRE><P>Or Python with Requests library</P><PRE>r = requests.get('...') hosts = ','.join(x['Hosts']['host_name'] for x in r.json()['items'])</PRE> Wed, 23 Aug 2017 01:53:23 GMT JordanMoore 2017-08-23T01:53:23Z https://community.cloudera.com/t5/Archives-of-Support-Questions/API-how-to-know-by-API-command-all-machines-in-ambari/m-p/226658#M67100 <P>how to know by API command all machines in ambari cluster , </P><P>example - master01,master02,master03,worker01,worker02,worker03,kafka01,kafka02 etc</P> Wed, 23 Aug 2017 01:10:20 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/API-how-to-know-by-API-command-all-machines-in-ambari/m-p/226658#M67100 mike_bronson7 2017-08-23T01:10:20Z https://community.cloudera.com/t5/Archives-of-Support-Questions/API-how-to-know-by-API-command-all-machines-in-ambari/m-p/226659#M67101 <P>This Rest call will get you all host names of nodes in the cluster</P><PRE><A href="http://your.ambari.server/api/v1/clusters/yourClusterName/hosts" target="_blank">http://your.ambari.server/api/v1/clusters/yourClusterName/hosts</A></PRE><P>See these links on the Ambari API</P><UL> <LI><A href="https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/hosts.md" target="_blank">https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/hosts.md</A></LI><LI><A href="https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/index.md" target="_blank">https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/index.md</A></LI></UL> Wed, 23 Aug 2017 01:52:10 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/API-how-to-know-by-API-command-all-machines-in-ambari/m-p/226659#M67101 gkeys 2017-08-23T01:52:10Z https://community.cloudera.com/t5/Archives-of-Support-Questions/API-how-to-know-by-API-command-all-machines-in-ambari/m-p/226660#M67102 <P> You can get the JSON response. </P><P> <A href="https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/hosts.md" target="_blank">https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/hosts.md</A> </P> <PRE><A href="http://ambari-server:8080/clusters/:clusterName/hosts" target="_blank">http://ambari-server:8080/clusters/:clusterName/hosts</A> </PRE><P> To extract the hostnames easier, you could try JSONPath</P> <PRE>$.items[*].Hosts.host_name </PRE><P>Or Python with Requests library</P><PRE>r = requests.get('...') hosts = ','.join(x['Hosts']['host_name'] for x in r.json()['items'])</PRE> Wed, 23 Aug 2017 01:53:23 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/API-how-to-know-by-API-command-all-machines-in-ambari/m-p/226660#M67102 JordanMoore 2017-08-23T01:53:23Z