Issues with Fencing and logs being deleted

ladidadi

New Member
Sep 16, 2021
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Hello,

We are having issues with one particular server proxmox 6.4 Proliant DL360 GEN9. Cluster fence it then, server goes down, logs being wiped off. Any suggestion how to fix, troubleshoot, its only this server that is having issues, but hardware seems to show no errors?
Much appreciated.

Ladi
 

Stoiko Ivanov

Proxmox Staff Member
Staff member
May 2, 2018
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I assume the thread belongs the the Proxmox VE forum (you opened it in the mail-gateway forum). - I'll move it accordingly.

Fencing (see https://pve.proxmox.com/pve-docs/chapter-ha-manager.html#ha_manager_fencing) means the system is instantly powered-off and not shut-down cleanly (it's like if you pull the power cord(s)). This results in the last couple of lines in the syslog to not get written to disk.

Options to work-around this:
* check the journal and not syslog (PVE tries to sync the journal and it could contain a few lines that are not in the logs)
* configure remote syslogging (via UDP) to an external server - this usually should get you most lines before the fence

I hope this helps!
 
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