JIRA Datacenter Node communication ports

Over what port do JIRA Datacenter nodes communicate with each other? I am unable to locate this information in the documentation. I need to run the nodes with the OS firewall enabled. When I enable it, I see these errors in the nodes:

...threw a connection exception. This could mean that a node has gone offline or it may indicate network connectivity difficulties. Details: Connection refused to host: CU019; nested exception is: 
java.net.ConnectException: Connection timed out: connect

They go away when I disable the firewall. I am able to hit the nodes in the browser successfully using port 8080, as I have opened that port in the node firewalls. 

Thanks for your help.

1 answer

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At a guess, this would seem to be port 40001 based on the JIRA Datacenter installation guide.

image2016-8-9 14:25:31.png

https://confluence.atlassian.com/adminjiraserver071/installing-jira-data-center-802592197.html

I read that, and also saw that port mentioned in the logs, but opening 40001 over TCP and UDP did not resolve the issue. Thanks for your reply.

Hey @Jesse Wisener had the same problem. 40001 only was not enough. Because the logs didn't indicated which logs should be open I opened for the nodes between all ports and this helped immedetialey.

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