Hello, I just did an upgrade from Kibana 7.3 to 7.6. After installing with the RPM and using the same kibana.yml file I had before, I tried to start the service and after 3 restarts I got the following error
journalctl -fu kibana.service
-- Logs begin at Tue 2020-02-25 18:58:29 UTC. --
Feb 25 20:54:39 elkkibsus1202 kibana[3306]: FATAL Error: Index .kibana_task_manager belongs to a version of Kibana that cannot be automatically migrated. Reset it or use the X-Pack upgrade assistant.
Feb 25 20:54:40 elkkibsus1202 systemd[1]: kibana.service: Main process exited, code=exited, status=1/FAILURE
Feb 25 20:54:40 elkkibsus1202 systemd[1]: kibana.service: Unit entered failed state.
Feb 25 20:54:40 elkkibsus1202 systemd[1]: kibana.service: Failed with result 'exit-code'.
Feb 25 20:54:43 elkkibsus1202 systemd[1]: kibana.service: Service RestartSec=3s expired, scheduling restart.
Feb 25 20:54:43 elkkibsus1202 systemd[1]: Stopped Kibana.
Feb 25 20:54:43 elkkibsus1202 systemd[1]: kibana.service: Start request repeated too quickly.
Feb 25 20:54:43 elkkibsus1202 systemd[1]: Failed to start Kibana.
Feb 25 20:54:43 elkkibsus1202 systemd[1]: kibana.service: Unit entered failed state.
Feb 25 20:54:43 elkkibsus1202 systemd[1]: kibana.service: Failed with result 'start-limit'.
I've been looking to the Fatal Error but can't find anything that helps.
It looks like you may need to reset the task manager index. You can do this by executing this curl against your Elasticsearch cluster: curl http://myelasticsearch.com:9200/.kibana_task_manager -XDELETE
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