@Michael Bronson In the other thread : https://community.hortonworks.com/questions/176682/api-via-script-how-to-verify-zkfailovercontroller.html?childToView=176685#answer-176685 If you just replace the ZKFC with JOURNALNODE then you should be able to find the same. # 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\" \: \"JOURNALNODE\"" | awk '{print $NF}' > /tmp/requests_details.txt; sed -e '1,2d' -e s'/--//g' -e 's/\n//g' -e 's/"//g' -e '/^$/d' /tmp/requests_details.txt | awk 'NR%3{printf "%s ",$0;next;}1' . Example Output: STARTED JOURNALNODE, amb25101.example.com, STARTED JOURNALNODE, amb25102.example.com, STARTED JOURNALNODE, amb25103.example.com, . ... View more

@Michael Bronson You can try something like following: # 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 $NF}' > /tmp/requests_details.txt; sed -e '1,2d' -e s'/--//g' -e 's/\n//g' -e 's/"//g' -e '/^$/d' /tmp/requests_details.txt | awk 'NR%3{printf "%s ",$0;next;}1' . Example Output: STARTED ZKFC, amb25102.example.com, STARTED ZKFC, amb25103.example.com, ... View more

@Michael Bronson Have you followed the steps mentioned in the following article: https://community.hortonworks.com/content/supportkb/48998/correct-procedure-to-re-ip-a-client-host-in-a-clus.html This is just to see if by any chance if you might have missed any step. Specially this command should return the new IP address of the node # nslookup nodename.fqdn . Else it might be a DNS cache issue. ... View more