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Coherence, JMX query to determine running nodes failing
At my organisation we are running an older version of coherence (220.127.116.11 Build 47076). We monitor the status of the nodes by using JMX (?) querying - I believe this connects to one of the machines and is a simple query to show the nodes that are running. (This is done via Geneos, if it helps).
The problem is one of the proxy nodes is not being shown via this JDX call (ie, count($1.Id)). However, I can see the java process do appear to be running properly.
As our team have no experience on this level, I am struggling to know how further to analyse the issue. I see no problems in the logs etc - is there anyone who could recommend steps to perform to look into this? Is there a way to manually query or debug how the JMX calls are done?
Upgrading Coherence is likely not feasible as we don't have team resources to do this.
Thanks for any help.