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We had a working Confluence TST cluster with 2 nodes on version 7.13.0.
After updating both nodes to version 7.13.7 we have the following behavior:
When we then restart node 1, we have the same behavior (node 1 is ok but node 2 crashes with the same error).
So there seems to be a problem with the cluster after the update.
On both machines port 5801 is open on the firewall.
confluencetst02 | 2022-06-15 08:43:04,086 INFO [Catalina-utility-1] [atlassian.confluence.cluster.DefaultClusterConfigurationHelper] lambda$populateExistingClusterSetupConfig$5 Populating setup configuration if running with Cluster mode...
confluencetst02 | 2022-06-15 08:43:04,842 INFO [Catalina-utility-1] [confluence.cluster.hazelcast.HazelcastClusterManager] configure Configuring Hazelcast with instanceName [confluence], join configuration TCP/IP member addresses: 18.104.22.168|22.214.171.124, network interfaces [172.19.0.3] and local port 5801
confluencetst02 | 2022-06-15 08:43:04,842 INFO [Catalina-utility-1] [confluence.cluster.hazelcast.HazelcastClusterManager] startCluster Starting the cluster.
confluencetst02 | 2022-06-15 08:43:08,219 INFO [hz.confluence.event-2] [confluence.cluster.hazelcast.LoggingClusterMembershipListener] memberAdded [126.96.36.199]:5801 joined the cluster
confluencetst02 | 2022-06-15 08:43:08,221 INFO [hz.confluence.event-2] [confluence.cluster.hazelcast.LoggingClusterMembershipListener] logClusterMembers Cluster now has 1 members: [[188.8.131.52]:5801]
confluencetst02 | 2022-06-15 08:43:09,483 WARN [hz.confluence.cached.thread-2] [hazelcast.interceptor.authenticator.DefaultClusterJoinManager] checkNodeAuthenticationEnabled CONNECT(172.19.0.3:55333 -> 184.108.40.206:5801): Node authentication failed: Cluster authentication failed. Please make sure all members share the same value for 'confluence.cluster.name' and 'confluence.cluster.authentication.secret' in confluence.cfg.xml.
confluencetst02 | 2022-06-15 08:43:10,330 INFO [Catalina-utility-1] [confluence.cluster.hazelcast.HazelcastClusterManager] startCluster Confluence cluster node identifier is [91d9cc86]
confluencetst02 | 2022-06-15 08:43:10,330 INFO [Catalina-utility-1] [confluence.cluster.hazelcast.HazelcastClusterManager] startCluster Confluence cluster node name is [confluencetst02]
The WARN that you are seeing is in reference to your confluence.cfg.xml in your home directory. It looks like the following two properties:
Verify that the secret is the same on both your servers. After making them the same for our servers, all nodes were able to join the cluster