Starting Confluence node fails with 'Port [5801] is already in use and auto-increment is disabled. Hazelcast cannot start' error
Platform notice: Server and Data Center only. This article only applies to Atlassian products on the Server and Data Center platforms.
Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
Attempting to start the second node in the same machine results in the following error found in the atlassian-confluence.log:
[com.hazelcast.instance.DefaultAddressPicker] log null [dev] [3.3-RC1-atlassian-1] Port [5801] is already in use and auto-increment is disabled. Hazelcast cannot start.
java.net.BindException: Address already in use
Cause
Both nodes are using the same Hazelcast port
Resolution
Shutdown the second node
Add the following system property (See: Configuring System Properties):
-Dconfluence.cluster.hazelcast.listenPort=5851- Startup Confluence again
Last modified on May 3, 2016
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