Recent content by Sebastian Schubert

  1. Sebastian Schubert

    [SOLVED] after upgrade Mellanox issue . can not connect to ceph network

    Sorry, but without an error message i can't help you ¯\_(ツ)_/¯ try sneaking around in /var/log/ceph and look at the logfiles, or try pinging nodes on the ceph public network, or check if the interface came up .. or or or
  2. Sebastian Schubert

    [SOLVED] after upgrade Mellanox issue . can not connect to ceph network

    Do you have any error message? We have no problems with the same kernel and also mlx cards: root@prox2:~# dmesg |grep -e mlx [ 3.724951] mlx5_core 0000:af:00.0: firmware version: 14.23.1020 [ 3.724981] mlx5_core 0000:af:00.0: 63.008 Gb/s available PCIe bandwidth (8 GT/s x8 link) [...
  3. Sebastian Schubert

    Help wanted ipv6

    is proxy_ndp turned on on the host(firewallsettings)
  4. Sebastian Schubert

    Help wanted ipv6

    what does your ip6 routing table look like? ip -6 ro from the ip 2a01:4f8:141:3e4::1 guess you're at hetzner, they tend to use fe80::1 as gateway... but you don't - maybe thats your problem?
  5. Sebastian Schubert

    lxcfs segfaulting after upgrade to 6.2 (lxc 4.0)

    We did some adjustments (mainly LimitNoFile set to a higher value) and observed the following behaviour: Everything works well, until we run about 220 guests per node (~20-25 FDs used) - then the prometheus node_exporter in every running guest produces too much "noise" (scraped every 120...
  6. Sebastian Schubert

    lxcfs segfaulting after upgrade to 6.2 (lxc 4.0)

    inside the lxcfs process fd directory it seems that something is "running away/leaking", as we hit 1024 fds. normally the fd's stay around 20
  7. Sebastian Schubert

    lxcfs segfaulting after upgrade to 6.2 (lxc 4.0)

    pveversion -v proxmox-ve: 6.2-1 (running kernel: 5.4.41-1-pve) pve-manager: 6.2-4 (running version: 6.2-4/9824574a) pve-kernel-5.4: 6.2-2 pve-kernel-helper: 6.2-2 pve-kernel-5.3: 6.1-6 pve-kernel-5.0: 6.0-11 pve-kernel-5.4.41-1-pve: 5.4.41-1 pve-kernel-4.15: 5.4-6 pve-kernel-5.3.18-3-pve...
  8. Sebastian Schubert

    lxcfs segfaulting after upgrade to 6.2 (lxc 4.0)

    Hi there, we just upgraded to the 6.2 release with lxc 4.0 and after running about 250 containers on each node, we now get the following error (previously: https://forum.proxmox.com/threads/lxcfs-br0ke-cgroup-limit.69015/#post-309442) root@lxc-prox4:~# grep -A 5 -B 5 lxcfs /var/log/messages...
  9. Sebastian Schubert

    [SOLVED] PVESIG - what is it used for?

    Thx for that explanation stoiko :cool:
  10. Sebastian Schubert

    [SOLVED] PVESIG - what is it used for?

    Hi there, i was wondering what the PVESIG in the iptables rules are for. Is there any sort of "tampering" detection (and mitigation?) or what is it used for?
  11. Sebastian Schubert

    LXCFS br0ke / cgroup limit

    Containers are running normal centos, sample container config: root@lxc-prox4:/etc/pve/nodes/lxc-prox4/lxc# cat 313.conf arch: amd64 cmode: shell console: 0 cores: 2 hookscript: local:snippets/lxc-route-hookscript.sh hostname: as2-ce memory: 2048 net0...
  12. Sebastian Schubert

    LXCFS br0ke / cgroup limit

    Hi fabian, i ran an update this night - forgot to get the output prior to the update
  13. Sebastian Schubert

    LXCFS br0ke / cgroup limit

    root@lxc-prox1:~# systemctl show -p TasksMax lxcfs TasksMax=9830
  14. Sebastian Schubert

    LXCFS br0ke / cgroup limit

    Hi there, we're actually running a four node Cluster with about 250 lxc containers on each node (evenly distributed). Primary Storage for almost all containers (except 4) is on the integrated ceph within proxmox. Kernel Version Linux 5.3.13-1-pve #1 SMP PVE 5.3.13-1 (Thu, 05 Dec 2019...
  15. Sebastian Schubert

    [SOLVED] Parallel startup for LXC Containers possible?

    We implemented it like this (the pve-guests still takes care of all containers as well, but we dont mind ;) ) Systemd File: # /etc/systemd/system/startupbooster.service [Unit] Description=PVE startup booster ConditionPathExists=/usr/sbin/pct RefuseManualStart=true RefuseManualStop=true...

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