"No monitoring data found" error on Kibana


my Kibana worked without issues for a while but started displaying "No monitoring data found" error today, then Status turned to RED on Kibana. I executed _cluster/health command on the servers, but all status were GREEN. I checked via _cat API but all .monitoring* indices are existed.

why is this happened? why kibana suddenly not able to find .monitoring* indices? why Status'es are different btw kibana and actual servers?

Please advice.


yesterday observed this behavior, somebody help plz)

@af615dbd55cac2cacf32, today i noticed that problem solved by itself when check monitoring plugin in kibana.


Did you restarted your Elasticsearch then it was resolved?

I tracked myself with all nodes log files. It looked my warm nodes used all heap memory which i set. L related logs i found were shown as below link.

I guess .monitoring indices were not able to be updated from warm nodes after that happened, then my kibana was ahown above error. Weird thing was kibana displayed Status:RED after that even though _cluster/health execution result via each actual nodes were still Status:green.

I decided to restart warm nodes, then issue was gone.

Thank you for sharing update btw.

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