https://community.cloudera.com/t5/Archives-of-Support-Questions/API-VIA-script-command-how-to-verify-ZKFailoverController/m-p/178806#M75811 <P><A rel="user" href="https://community.cloudera.com/users/26229/uribarih.html" nodeid="26229">@Michael Bronson</A></P><P>You can try something like following:</P><PRE># curl -u admin:admin -H "X-Requested-By: ambari" -X GET "http://amb25101.example.com:8080/api/v1/clusters/plain_ambari/components?fields=ServiceComponentInfo/service_name,ServiceComponentInfo/component_name,ServiceComponentInfo/state,host_components/HostRoles/host_name,host_components/HostRoles/state" | grep -A 2 "\"component_name\" \: \"ZKFC\"" | awk '{print $NF}' &gt; /tmp/requests_details.txt; sed -e '1,2d' -e s'/--//g' -e 's/\n//g' -e 's/"//g' -e '/^$/d' /tmp/requests_details.txt | awk 'NR%3{printf "%s ",$0;next;}1' </PRE><P>.</P><P>Example Output:</P><PRE>STARTED ZKFC, amb25102.example.com, STARTED ZKFC, amb25103.example.com,</PRE> Wed, 14 Mar 2018 18:13:14 GMT jsensharma 2018-03-14T18:13:14Z https://community.cloudera.com/t5/Archives-of-Support-Questions/API-VIA-script-command-how-to-verify-ZKFailoverController/m-p/178805#M75810 <P>we want to verify by API or any approach by script / command that <STRONG>ZKFailoverController</STRONG> is started ( status green from ambari GUI )</P><P>in our cluster ZKFailoverController is on master01 and master03 machines</P><P><STRONG>so how to identify ZKFailoverController is started (green state ) on master01 and master03 machines ?</STRONG></P><P><STRONG><BR /></STRONG></P><P><STRONG>example from Ambari GUI</STRONG></P><P><STRONG><BR /></STRONG></P><P><STRONG><BR /></STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="64608-capture.png" style="width: 377px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/19455iCF2F739938571BE5/image-size/medium?v=v2&amp;px=400" role="button" title="64608-capture.png" alt="64608-capture.png" /></span></P> Sun, 18 Aug 2019 09:29:18 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/API-VIA-script-command-how-to-verify-ZKFailoverController/m-p/178805#M75810 mike_bronson7 2019-08-18T09:29:18Z https://community.cloudera.com/t5/Archives-of-Support-Questions/API-VIA-script-command-how-to-verify-ZKFailoverController/m-p/178806#M75811 <P><A rel="user" href="https://community.cloudera.com/users/26229/uribarih.html" nodeid="26229">@Michael Bronson</A></P><P>You can try something like following:</P><PRE># curl -u admin:admin -H "X-Requested-By: ambari" -X GET "http://amb25101.example.com:8080/api/v1/clusters/plain_ambari/components?fields=ServiceComponentInfo/service_name,ServiceComponentInfo/component_name,ServiceComponentInfo/state,host_components/HostRoles/host_name,host_components/HostRoles/state" | grep -A 2 "\"component_name\" \: \"ZKFC\"" | awk '{print $NF}' &gt; /tmp/requests_details.txt; sed -e '1,2d' -e s'/--//g' -e 's/\n//g' -e 's/"//g' -e '/^$/d' /tmp/requests_details.txt | awk 'NR%3{printf "%s ",$0;next;}1' </PRE><P>.</P><P>Example Output:</P><PRE>STARTED ZKFC, amb25102.example.com, STARTED ZKFC, amb25103.example.com,</PRE> Wed, 14 Mar 2018 18:13:14 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/API-VIA-script-command-how-to-verify-ZKFailoverController/m-p/178806#M75811 jsensharma 2018-03-14T18:13:14Z