LXC Night Reboot, Why?

[yena]

Hello,
i have a single Host server with a singre LXC container.
Every night, randomly time, it reboot.
I havn,'t any dmesg error or ram issue.

How can i debug it to find witch process cause the reboot ?

example:
root@Db2meteo:/var/log# uptime -s
2017-09-04 01:27:47
root@Db2meteo:/var/log# last rebbot

wtmp begins Fri Sep 1 08:25:48 201

So none have reboot manualy the container.

Thanks!

pveversion -v
proxmox-ve: 4.4-94 (running kernel: 4.4.76-1-pve)
pve-manager: 4.4-18 (running version: 4.4-18/ef2610e8)
pve-kernel-4.4.6-1-pve: 4.4.6-48
pve-kernel-4.4.16-1-pve: 4.4.16-64
pve-kernel-4.4.67-1-pve: 4.4.67-92
pve-kernel-4.4.76-1-pve: 4.4.76-94
lvm2: 2.02.116-pve3
corosync-pve: 2.4.2-2~pve4+1
libqb0: 1.0.1-1
pve-cluster: 4.0-52
qemu-server: 4.0-112
pve-firmware: 1.1-11
libpve-common-perl: 4.0-96
libpve-access-control: 4.0-23
libpve-storage-perl: 4.0-76
pve-libspice-server1: 0.12.8-2
vncterm: 1.3-2
pve-docs: 4.4-4
pve-qemu-kvm: 2.7.1-4
pve-container: 1.0-101
pve-firewall: 2.0-33
pve-ha-manager: 1.0-41
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u3
lxc-pve: 2.0.7-4
lxcfs: 2.0.6-pve1
criu: 1.6.0-1
novnc-pve: 0.5-9
smartmontools: 6.5+svn4324-1~pve80
zfsutils: 0.6.5.9-pve15~bpo80

-----------------------------------------------------------------------------

zpool status
pool: rpool
state: ONLINE
scan: scrub repaired 0 in 36h22m with 0 errors on Mon Aug 14 12:46:02 2017
config:

NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
sdb2 ONLINE 0 0 0
sdc2 ONLINE 0 0 0

errors: No known data errors

 

[t.lamprecht]

i have a single Host server with a singre LXC container.
Every night, randomly time, it reboot.

Whats in the PVE host journal around that time? You can use journalctl and limit the time range alà:

journalctl --since="2017-08-24 22:00" --until="2017-08-25 05:00"

Also the CT syslog/journal could be interesting.