MARIADB GALERA CLUSTR

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I have a working cluster with three nodes on 192.168.14 subnet I wanted to add an external machine to cluster ip 78.3.157.x External machine fails to join cluster with "failed to open gcom backend connection 110" Is such a configuration actually possible and if so how

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cluster-computingmariadbgalera
Have you looked at serverfault.com? This question seems more appropriate for that community - Marc L.

1 Answers

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I think you have a network level problem. The servers are not able to reach each other because you probably have some sort of non-transparent NAT device between the server. One of the IPs is public and the others are private.

Fix your networking layer so that all your nodes have full non-NAT:ed connectivity between each other. They do not need to be in the same subnet as long as the connectivity between them works in every direction.