Hi Bartk, What's the version of crmsh you are using? Could you please provide your corosync.conf on these 2 nodes after you meed this error?
And, if you run "crm cluster init -u -s <device1> -s <device2> -s <device3>" on node01, crmsh will just pick up ONE interface and write it into corosync.conf, while I see there are TWO rings in https://paste.opensuse.org/pastes/254c28adf1c5, which was very weird Regards, Xin ________________________________ From: Users <users-boun...@clusterlabs.org> on behalf of Bartosz Kaczyński <bkaczyn...@posteo.net> Sent: Tuesday, August 8, 2023 4:45 AM To: users@clusterlabs.org <users@clusterlabs.org> Subject: [ClusterLabs] Unable to add a node to an existing cluster Hello ClusterLabs community! I'm in the process of learning this technology, using the course "Say Goodbye to Downtime with SUSE Linux Enterprise Server (Repeat)" [1] where the instructor guides through the process of installing a cluster on one node and joining to the cluster on another node. The instructor is using SLES 15. The entire test environment is quite complex in terms of networking and storage. I think I managed to replicate it on openSUSE Leap 15.5. I initiated the cluster from node01 with the following command: node01:~ # crm cluster init -u \ -s /dev/disk/by-path/ip-10.10.11.111:3260-iscsi-iqn.(...)-lun-0 \ -s /dev/disk/by-path/ip-10.10.12.112:3260-iscsi-iqn.(...)-lun-0 \ -s /dev/disk/by-path/ip-10.10.13.113:3260-iscsi-iqn.(...)-lun-0 From node02, I then tried to join it to the cluster with the following command [2] I also believe that I met all the requirements regarding the network connectivity between the nodes and cluster resolution. ICMP is working between all interfaces, the /etc/hosts file is also filled in on both hosts, and time synchronization is ensured with chronyd. The network diagram is available as a downloadable graphic [3], and someone has created a similar tutorial using VMware as the hypervisor (while I am using KVM) [4]. I am aware that providing assistance in such a situation can be challenging, and the problem may occur at various levels. However, is there anything that I might have overlooked, or is there anything that comes to your mind? [1] https://open.sap.com/courses/suse2-1-pc [2] https://paste.opensuse.org/pastes/254c28adf1c5 [3] https://opensap-pinboard.s3.openhpicloud.de/courses/6IB8s3snE8SkA2AxXCJWOL/topics/1nYPUtHIu4f73RLSTHdkqw/44nDvDjlO5bs8eoCxu0Uqh/openSAP-HA-LabEnv-Diagram.png [4] https://blogs.sap.com/2021/03/13/setting-up-suse-high-availability-cluster-quick-start-demo/ Regards, bartk _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
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