● kibana.service - Kibana
Loaded: loaded (/etc/systemd/system/kibana.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2020-08-20 04:29:53 UTC; 30s ago
Main PID: 313 (node)
CGroup: /system.slice/kibana.service
└─313 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli -c /etc/kibana/kibana.yml
Aug 20 04:29:53 server systemd[1]: kibana.service holdoff time over, scheduling restart.
Aug 20 04:29:53 server systemd[1]: Stopped Kibana.
Aug 20 04:29:53 server systemd[1]: Started Kibana.
Aug 20 04:30:20 server kibana[313]: FATAL Error: Type 'alert' is already registered
I have installed Kibana latest version like 8.5.0 version
After I have started the service I keep polling for the status via...
'systemctl status kibana'
Polling four times approximately 2 seconds apart results in...
● kibana.service - Kibana
Loaded: loaded (/etc/systemd/system/kibana.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2020-08-20 04:36:50 UTC; 9s ago
Main PID: 2439 (node)
CGroup: /system.slice/kibana.service
└─2439 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli -c /etc/kibana/kibana.yml
Aug 20 04:36:50 server systemd[1]: kibana.service holdoff time over, scheduling restart.
Aug 20 04:36:50 server systemd[1]: Stopped Kibana.
Aug 20 04:36:50 server systemd[1]: Started Kibana.
[root@server kibana]# systemctl status kibana -l
● kibana.service - Kibana
Loaded: loaded (/etc/systemd/system/kibana.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2020-08-20 04:36:50 UTC; 19s ago
Main PID: 2439 (node)
CGroup: /system.slice/kibana.service
└─2439 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli -c /etc/kibana/kibana.yml
Aug 20 04:36:50 server systemd[1]: kibana.service holdoff time over, scheduling restart.
Aug 20 04:36:50 server systemd[1]: Stopped Kibana.
Aug 20 04:36:50 server systemd[1]: Started Kibana.
[root@server kibana]# systemctl status kibana -l
● kibana.service - Kibana
Loaded: loaded (/etc/systemd/system/kibana.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2020-08-20 04:36:50 UTC; 22s ago
Main PID: 2439 (node)
CGroup: /system.slice/kibana.service
└─2439 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli -c /etc/kibana/kibana.yml
Aug 20 04:36:50 server systemd[1]: kibana.service holdoff time over, scheduling restart.
Aug 20 04:36:50 server systemd[1]: Stopped Kibana.
Aug 20 04:36:50 server systemd[1]: Started Kibana.
Now its resolved. the prblm happened kibana server automatically updated latest version(7.9) and elastic server running(7.8) that way getting this error, now uninstall kibana then install kibana 7.8 version its working ....
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