PVE is reboot itself

[maorbari]

Hey,

I checked logs, and there is no error log, only this logs:
Sep 16 04:01:30 pve2 systemd[1]: Starting Daily PVE download activities...
Sep 16 04:01:33 pve2 pveupdate[4067965]: <root@pam> starting task UPIDve2:003E1283:28062939:6323CAED:aptupdate::root@pam:
Sep 16 04:01:36 pve2 pveupdate[4067971]: update new package list: /var/lib/pve-manager/pkgupdates
Sep 16 04:01:38 pve2 postfix/pickup[4039477]: B6458201EC: uid=0 from=<root>
Sep 16 04:01:38 pve2 pveupdate[4067965]: <root@pam> end task UPIDve2:003E1283:28062939:6323CAED:aptupdate::root@pam: OK
Sep 16 04:01:38 pve2 postfix/cleanup[4068484]: B6458201EC: message-id=<20220916010138.B6458201EC@pve2.local>
Sep 16 04:01:38 pve2 postfix/qmgr[1670100]: B6458201EC: from=<root@pve2.local>, size=462, nrcpt=1 (queue active)
Sep 16 04:01:38 pve2 systemd[1]: pve-daily-update.service: Succeeded.
Sep 16 04:01:38 pve2 systemd[1]: Finished Daily PVE download activities.
Sep 16 04:01:38 pve2 systemd[1]: pve-daily-update.service: Consumed 4.366s CPU time.
Sep 16 04:01:39 pve2 postfix/smtp[4068486]: B6458201EC: to=<admin@XXX.com>, relay=mail.XXX.com[X.X.X.X]:25, delay=0.89, delays=0.06/0.01/0.29/0.52, dsn=2.0.0, status=sent (250 OK id=1oYzjf-00H14v-19)
Sep 16 04:01:39 pve2 postfix/qmgr[1670100]: B6458201EC: removed
-- Reboot --
Sep 16 04:05:42 pve2 kernel: Linux version 5.15.39-4-pve (build@proxmox) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP PVE 5.15.39-4 (Mon, 08 Aug 2022 15:11:15 +0200) ()


What can be the issue?

Thank you!

 

[dcsapak]

What can be the issue?

many things, for example:

hardware issue (psu, cpu, memory, disk, etc)
activated ha with faulty network (though that would probably have more indications in the log normally)
software issue (kernel bug, etc.) unlikely, since those normally produce some log output before hard crashing the server
other issues (e.g. someone pressing reset button accidentally, loss of power, etc.)

 

[maorbari]

Nobody have access to this server.
If there is hardware issue or software issue, it should be log but there is no logs of any issue.
it happened again tonight:

Sep 19 05:11:48 pve2 pmxcfs[1737]: [status] notice: received log
Sep 19 05:17:01 pve2 CRON[1502592]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Sep 19 05:17:01 pve2 CRON[1502593]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Sep 19 05:17:01 pve2 CRON[1502592]: pam_unix(cron:session): session closed for user root
Sep 19 05:27:48 pve2 pmxcfs[1737]: [status] notice: received log
Sep 19 05:34:30 pve2 pmxcfs[1737]: [dcdb] notice: data verification successful
-- Reboot --
Sep 19 05:40:03 pve2 kernel: Linux version 5.15.39-4-pve (build@proxmox) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP PVE 5.15.39-4 (Mon, 08 Aug 2022 15:11:15 +0200) ()
Sep 19 05:40:03 pve2 kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-5.15.39-4-pve root=/dev/mapper/pve-root ro quiet


I dont understand why it happening, I dont see any corrupted log, can you help me to understand how to check it?