The cluster is not working properly, 'qm' hangs

[wmxhw]

• It turned out that the cluster was fine, but when it was shut down and restarted, it broke.

• When the corosync process was started, the QM command was stuck.

• I have confirmed that the time synchronization server is working properly.

• I found these articles, but they don't seem to work.

https://forum.proxmox.com/threads/c...howing-all-nodes-as-offline-on-web-gui.31167/
https://forum.proxmox.com/threads/cluster-running-but-node-shows-offline.29956/
https://forum.proxmox.com/threads/proxmox-cluster-shows-nodes-offline.42707/

 

[Dominic]

Can the nodes ping each other using their hostnames instead of IP? Have you already double-checked the contents of /etc/hosts? You can find a reference for what it should look like in the wiki https://pve.proxmox.com/wiki/Instal...d_an_.2Fetc.2Fhosts_entry_for_your_IP_address

 

[wmxhw]

Thanks for your reply.

I tried to turn off all the physical machines and start them up, and now they are back to normal.
During this time, there was no human intervention.

May I ask what things I need to pay attention to, such as the log.

 

[wmxhw]

Can the nodes ping each other using their hostnames instead of IP? Have you already double-checked the contents of /etc/hosts? You can find a reference for what it should look like in the wiki https://pve.proxmox.com/wiki/Instal...d_an_.2Fetc.2Fhosts_entry_for_your_IP_address

Each node has only itself in /etc/hosts.
It was not configured but it seems normal again.

 

[Dominic]

May I ask what things I need to pay attention to, such as the log.

Debian system log and journal of the PVE service daemons are usually a good start.