Master node does not allow updating

I am currently upgrading from the highest available version, v 8.19.3, to v 8.19.8.

I successfully completed the process on two of the three servers in the cluster, but now I am having problems with the one that acts as the masternode. When I stop the Elasticsearch service from monitoring, it still appears as online, and errors begin to appear from Kibana.

I would appreciate it if you could share a command to run from devtools to remove it from the executables as a master node while I manage to update it.

Commands on Kibana DevTools will be sent to the nodes configured in kibana.yml.

Which nodes are configured in Kibana?

elasticsearch.hosts: ['https://172.26.6.36:9200','https://172.26.6.37:9200','https://172.26.6.38:9200']

It should try the other nodes.

But just to confirm, you have just one node as master? If so your cluster will not be available until the node is up again.

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