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Hi <span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14.6667px; display: inline !important; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="ContentPasted1">Bartk,</span></div>
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<br>
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What's the version of crmsh you are using?<br>
Could you please provide your corosync.conf on these 2 nodes after you meed this error?</div>
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<br>
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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 <a href="https://paste.opensuse.org/pastes/254c28adf1c5" id="LPlnk351934">https://paste.opensuse.org/pastes/254c28adf1c5</a>,
which was very weird</div>
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<br>
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<br>
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Regards,
<div>Xin</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Users <users-bounces@clusterlabs.org> on behalf of Bartosz Kaczyński <bkaczynski@posteo.net><br>
<b>Sent:</b> Tuesday, August 8, 2023 4:45 AM<br>
<b>To:</b> users@clusterlabs.org <users@clusterlabs.org><br>
<b>Subject:</b> [ClusterLabs] Unable to add a node to an existing cluster</font>
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<div class="BodyFragment"><font size="2"><span style="font-size:11pt;">
<div class="PlainText">Hello ClusterLabs community!<br>
<br>
I'm in the process of learning this technology, using the course "Say <br>
Goodbye to Downtime with SUSE Linux Enterprise Server (Repeat)" [1] <br>
where the instructor guides through the process of installing a cluster <br>
on one node and joining to the cluster on another node.<br>
<br>
The instructor is using SLES 15. The entire test environment is quite <br>
complex in terms of networking and storage. I think I managed to <br>
replicate it on openSUSE Leap 15.5.<br>
<br>
I initiated the cluster from node01 with the following command:<br>
<br>
node01:~ # crm cluster init -u \<br>
-s /dev/disk/by-path/ip-10.10.11.111:3260-iscsi-iqn.(...)-lun-0 \<br>
-s /dev/disk/by-path/ip-10.10.12.112:3260-iscsi-iqn.(...)-lun-0 \<br>
-s /dev/disk/by-path/ip-10.10.13.113:3260-iscsi-iqn.(...)-lun-0<br>
<br>
From node02, I then tried to join it to the cluster with the following <br>
command [2]<br>
<br>
I also believe that I met all the requirements regarding the network <br>
connectivity between the nodes and cluster resolution. ICMP is working <br>
between all interfaces, the /etc/hosts file is also filled in on both <br>
hosts, and time synchronization is ensured with chronyd.<br>
<br>
The network diagram is available as a downloadable graphic [3], and <br>
someone has created a similar tutorial using VMware as the hypervisor <br>
(while I am using KVM) [4].<br>
<br>
I am aware that providing assistance in such a situation can be <br>
challenging, and the problem may occur at various levels. However, is <br>
there anything that I might have overlooked, or is there anything that <br>
comes to your mind?<br>
<br>
[1] <a href="https://open.sap.com/courses/suse2-1-pc">https://open.sap.com/courses/suse2-1-pc</a><br>
[2] <a href="https://paste.opensuse.org/pastes/254c28adf1c5">https://paste.opensuse.org/pastes/254c28adf1c5</a><br>
[3] <br>
<a href="https://opensap-pinboard.s3.openhpicloud.de/courses/6IB8s3snE8SkA2AxXCJWOL/topics/1nYPUtHIu4f73RLSTHdkqw/44nDvDjlO5bs8eoCxu0Uqh/openSAP-HA-LabEnv-Diagram.png">https://opensap-pinboard.s3.openhpicloud.de/courses/6IB8s3snE8SkA2AxXCJWOL/topics/1nYPUtHIu4f73RLSTHdkqw/44nDvDjlO5bs8eoCxu0Uqh/openSAP-HA-LabEnv-Diagram.png</a><br>
[4] <br>
<a href="https://blogs.sap.com/2021/03/13/setting-up-suse-high-availability-cluster-quick-start-demo/">https://blogs.sap.com/2021/03/13/setting-up-suse-high-availability-cluster-quick-start-demo/</a><br>
<br>
Regards,<br>
bartk<br>
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