Attahced the log shown Fail of centomenger and login service .
Actually the cluster is working fine but slow and unstable .
login service fail and cert monitor fail.
[ [1;31mFAILED [0m] Failed to start NIS/YP (Network Information Service) Clients to NIS Domain Binder.
See 'systemctl status ypbind.service' for details.
[ [32m OK [0m] Reached target User and Group Name Lookups.
Starting Login Service...
Nov 27 19:06:36 central03 kernel: [ 1472.395446] NFSD: starting 90-second grace period (net ffffffff81ad9d40)
Nov 27 19:06:37 central03 kernel: [ 1472.619881] fuse init (API version 7.22)
Starting Permit User Sessions...
Starting Zabbix Agent...
[ [32m OK [0m] Started Permit User Sessions.
[ [32m OK [0m] Started Command Scheduler.
Starting Command Scheduler...
[ [32m OK [0m] Started Job spooling tools.
Starting Job spooling tools...
[ [1;31mFAILED [0m] Failed to start Zabbix Agent.
See 'systemctl status zabbix_agentd.service' for details.
[ [32m OK [0m] Started PKI Tomcat Server pki-tomcat.
[ [32m OK [0m] Reached target PKI Tomcat Server.
[ [32m OK [0m] Listening on ipa-otpd socket.
[ [32m OK [0m] Started Identity, Policy, Audit.
[ [1;31mFAILED [0m] Failed to start Login Service.
See 'systemctl status systemd-logind.service' for details.
[ [32m OK [0m] Stopped Login Service.
Starting Login Service...
[ [1;31mFAILED [0m] Failed to start Certificate monitoring and PKI enrollment.
See 'systemctl status certmonger.service' for details.
[ [1;31mFAILED [0m] Failed to start Login Service.
See 'systemctl status systemd-logind.service' for details.
[ [32m OK [0m] Stopped Login Service.
Starting Login Service...
[ [32m OK [0m] Started /etc/rc.d/rc.local Compatibility.
Starting Wait for Plymouth Boot Screen to Quit...
Starting Terminate Plymouth Boot Screen...