Upgrade from 5.4 to 6.0 - one node not in quorum

Josef Liedl

Active Member
Dec 11, 2018
3
0
41
Hello,

Brief description.
I have a 3 Node Custer, which I upgraded from 5.4 to 6.0 and Ceph from 12 to 14. worked without any problems. But after 1 day I now have the problem that a node is not in the qorum.

Details:
The nodes are called pve1, pve2 and pve3. I upgraded pve1 and pve3 with apt. I reinstalled pve3, first removed it from the cluster and then added it again. So far everything was ok and I also upgraded ceph.
The next day pve2 was no longer in the quorum. Ceph still works. Then I restarted pve2, but it didn't work. Now it gets strange, after some time pve2 was in the quorum, but pve3 wasn't anymore.
Can someone give me a hint what the reason is?
Thanks a lot

Code:
proxmox-ve: 6.0-2 (running kernel: 5.0.21-1-pve)
pve-manager: 6.0-6 (running version: 6.0-6/c71f879f)
pve-kernel-5.0: 6.0-7
pve-kernel-helper: 6.0-7
pve-kernel-4.15: 5.4-8
pve-kernel-5.0.21-1-pve: 5.0.21-1
pve-kernel-4.15.18-20-pve: 4.15.18-46
pve-kernel-4.15.18-15-pve: 4.15.18-40
pve-kernel-4.15.18-9-pve: 4.15.18-30
ceph: 14.2.2-pve1
ceph-fuse: 14.2.2-pve1
corosync: 3.0.2-pve2
criu: 3.11-3
glusterfs-client: 5.5-3
libjs-extjs: 6.0.1-10
libknet1: 1.11-pve1
libpve-access-control: 6.0-2
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-4
libpve-guest-common-perl: 3.0-1
libpve-http-server-perl: 3.0-2
libpve-storage-perl: 6.0-7
libqb0: 1.0.5-1
lvm2: 2.03.02-pve3
lxc-pve: 3.1.0-64
lxcfs: 3.0.3-pve60
novnc-pve: 1.0.0-60
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.0-7
pve-cluster: 6.0-5
pve-container: 3.0-5
pve-docs: 6.0-4
pve-edk2-firmware: 2.20190614-1
pve-firewall: 4.0-7
pve-firmware: 3.0-2
pve-ha-manager: 3.0-2
pve-i18n: 2.0-2
pve-qemu-kvm: 4.0.0-5
pve-xtermjs: 3.13.2-1
qemu-server: 6.0-7
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
Code:
proxmox-ve: 6.0-2 (running kernel: 5.0.21-1-pve)
pve-manager: 6.0-6 (running version: 6.0-6/c71f879f)
pve-kernel-5.0: 6.0-7
pve-kernel-helper: 6.0-7
pve-kernel-4.15: 5.4-8
pve-kernel-5.0.21-1-pve: 5.0.21-1
pve-kernel-4.15.18-20-pve: 4.15.18-46
pve-kernel-4.15.18-15-pve: 4.15.18-40
pve-kernel-4.15.18-9-pve: 4.15.18-30
ceph: 14.2.2-pve1
ceph-fuse: 14.2.2-pve1
corosync: 3.0.2-pve2
criu: 3.11-3
glusterfs-client: 5.5-3
libjs-extjs: 6.0.1-10
libknet1: 1.11-pve1
libpve-access-control: 6.0-2
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-4
libpve-guest-common-perl: 3.0-1
libpve-http-server-perl: 3.0-2
libpve-storage-perl: 6.0-7
libqb0: 1.0.5-1
lvm2: 2.03.02-pve3
lxc-pve: 3.1.0-64
lxcfs: 3.0.3-pve60
novnc-pve: 1.0.0-60
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.0-7
pve-cluster: 6.0-5
pve-container: 3.0-5
pve-docs: 6.0-4
pve-edk2-firmware: 2.20190614-1
pve-firewall: 4.0-7
pve-firmware: 3.0-2
pve-ha-manager: 3.0-2
pve-i18n: 2.0-2
pve-qemu-kvm: 4.0.0-5
pve-xtermjs: 3.13.2-1
qemu-server: 6.0-7
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
root@pve1:~# cat pve2version 
proxmox-ve: 6.0-2 (running kernel: 5.0.21-1-pve)
pve-manager: 6.0-6 (running version: 6.0-6/c71f879f)
pve-kernel-5.0: 6.0-7
pve-kernel-helper: 6.0-7
pve-kernel-5.0.21-1-pve: 5.0.21-1
ceph: 14.2.2-pve1
ceph-fuse: 14.2.2-pve1
corosync: 3.0.2-pve2
criu: 3.11-3
glusterfs-client: 5.5-3
libjs-extjs: 6.0.1-10
libknet1: 1.11-pve1
libpve-access-control: 6.0-2
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-4
libpve-guest-common-perl: 3.0-1
libpve-http-server-perl: 3.0-2
libpve-storage-perl: 6.0-7
libqb0: 1.0.5-1
lvm2: 2.03.02-pve3
lxc-pve: 3.1.0-64
lxcfs: 3.0.3-pve60
novnc-pve: 1.0.0-60
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.0-7
pve-cluster: 6.0-5
pve-container: 3.0-5
pve-docs: 6.0-4
pve-edk2-firmware: 2.20190614-1
pve-firewall: 4.0-7
pve-firmware: 3.0-2
pve-ha-manager: 3.0-2
pve-i18n: 2.0-2
pve-qemu-kvm: 4.0.0-5
pve-xtermjs: 3.13.2-1
qemu-server: 6.0-7
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
Code:
proxmox-ve: 6.0-2 (running kernel: 5.0.21-1-pve)
pve-manager: 6.0-6 (running version: 6.0-6/c71f879f)
pve-kernel-5.0: 6.0-7
pve-kernel-helper: 6.0-7
pve-kernel-5.0.21-1-pve: 5.0.21-1
ceph: 14.2.2-pve1
ceph-fuse: 14.2.2-pve1
corosync: 3.0.2-pve2
criu: 3.11-3
glusterfs-client: 5.5-3
libjs-extjs: 6.0.1-10
libknet1: 1.11-pve1
libpve-access-control: 6.0-2
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-4
libpve-guest-common-perl: 3.0-1
libpve-http-server-perl: 3.0-2
libpve-storage-perl: 6.0-7
libqb0: 1.0.5-1
lvm2: 2.03.02-pve3
lxc-pve: 3.1.0-64
lxcfs: 3.0.3-pve60
novnc-pve: 1.0.0-60
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.0-7
pve-cluster: 6.0-5
pve-container: 3.0-5
pve-docs: 6.0-4
pve-edk2-firmware: 2.20190614-1
pve-firewall: 4.0-7
pve-firmware: 3.0-2
pve-ha-manager: 3.0-2
pve-i18n: 2.0-2
pve-qemu-kvm: 4.0.0-5
pve-xtermjs: 3.13.2-1
qemu-server: 6.0-7
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
root@pve1:~# cat pve3version 
proxmox-ve: 6.0-2 (running kernel: 5.0.21-1-pve)
pve-manager: 6.0-6 (running version: 6.0-6/c71f879f)
pve-kernel-5.0: 6.0-7
pve-kernel-helper: 6.0-7
pve-kernel-4.15: 5.4-8
pve-kernel-5.0.21-1-pve: 5.0.21-1
pve-kernel-4.15.18-20-pve: 4.15.18-46
pve-kernel-4.15.18-15-pve: 4.15.18-40
pve-kernel-4.15.18-9-pve: 4.15.18-30
ceph: 14.2.2-pve1
ceph-fuse: 14.2.2-pve1
corosync: 3.0.2-pve2
criu: 3.11-3
glusterfs-client: 5.5-3
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.11-pve1
libpve-access-control: 6.0-2
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-4
libpve-guest-common-perl: 3.0-1
libpve-http-server-perl: 3.0-2
libpve-storage-perl: 6.0-7
libqb0: 1.0.5-1
lvm2: 2.03.02-pve3
lxc-pve: 3.1.0-64
lxcfs: 3.0.3-pve60
novnc-pve: 1.0.0-60
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.0-7
pve-cluster: 6.0-5
pve-container: 3.0-5
pve-docs: 6.0-4
pve-edk2-firmware: 2.20190614-1
pve-firewall: 4.0-7
pve-firmware: 3.0-2
pve-ha-manager: 3.0-2
pve-i18n: 2.0-2
pve-qemu-kvm: 4.0.0-5
pve-xtermjs: 3.13.2-1
qemu-server: 6.0-7
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.1-pve2

Code:
Quorum information
------------------
Date:             Sat Aug 31 10:38:03 2019
Quorum provider:  corosync_votequorum
Nodes:            2
Node ID:          0x00000001
Ring ID:          1/196452
Quorate:          Yes

Votequorum information
----------------------
Expected votes:   3
Highest expected: 3
Total votes:      2
Quorum:           2 
Flags:            Quorate

Membership information
----------------------
    Nodeid      Votes Name
0x00000001          1 10.0.2.3 (local)
0x00000002          1 10.0.2.4

Do you need more information?
 
Thank you very much for your answer.
After I restarted corosync, it worked for about half an hour. After that corosync crashed on pve2. Also a restart of corosync didn't improve the situation.

Code:
● corosync.service - Corosync Cluster Engine
   Loaded: loaded (/lib/systemd/system/corosync.service; enabled; vendor preset: enabled)
   Active: failed (Result: signal) since Sat 2019-08-31 11:30:16 CEST; 6min ago
     Docs: man:corosync
           man:corosync.conf
           man:corosync_overview
  Process: 868133 ExecStart=/usr/sbin/corosync -f $COROSYNC_OPTIONS (code=killed, signal=SEGV)
 Main PID: 868133 (code=killed, signal=SEGV)

Aug 31 11:30:14 pve2 corosync[868133]:   [QUORUM] This node is within the non-primary component and will NOT provide any services.
Aug 31 11:30:14 pve2 corosync[868133]:   [QUORUM] Members[1]: 2
Aug 31 11:30:14 pve2 corosync[868133]:   [MAIN  ] Completed service synchronization, ready to provide service.
Aug 31 11:30:15 pve2 corosync[868133]:   [KNET  ] link: host: 3 link: 0 is down
Aug 31 11:30:15 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:30:15 pve2 corosync[868133]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:30:16 pve2 corosync[868133]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:30:16 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:30:16 pve2 systemd[1]: corosync.service: Main process exited, code=killed, status=11/SEGV
Aug 31 11:30:16 pve2 systemd[1]: corosync.service: Failed with result 'signal'.
duplicate entries replaced by ...
Code:
Aug 31 11:28:24 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 3c 3e 3f 43 44 45 46
Aug 31 11:28:24 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 3c 3e 3f 43 44 45 46
…
Aug 31 11:28:24 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 3c 3e 3f 43 44 45 46
Aug 31 11:28:24 pve2 corosync[868133]:   [KNET  ] rx: host: 1 link: 0 is up
Aug 31 11:28:24 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:28:24 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 3c 3e 3f 43 44 45 46
Aug 31 11:28:27 pve2 corosync[868133]:   [KNET  ] link: host: 3 link: 0 is down
Aug 31 11:28:27 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:28:27 pve2 corosync[868133]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:28:28 pve2 corosync[868133]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:28:28 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:28:28 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 364 ms
Aug 31 11:28:35 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 1237 ms
Aug 31 11:28:36 pve2 corosync[868133]:   [TOTEM ] A processor failed, forming new configuration.
Aug 31 11:28:36 pve2 corosync[868133]:   [TOTEM ] A new membership (1:281880) was formed. Members
Aug 31 11:28:36 pve2 corosync[868133]:   [CPG   ] downlist left_list: 0 received
Aug 31 11:28:36 pve2 corosync[868133]:   [CPG   ] downlist left_list: 0 received
Aug 31 11:28:36 pve2 corosync[868133]:   [CPG   ] downlist left_list: 0 received
Aug 31 11:28:36 pve2 corosync[868133]:   [QUORUM] Members[3]: 1 2 3
Aug 31 11:28:36 pve2 corosync[868133]:   [MAIN  ] Completed service synchronization, ready to provide service.
Aug 31 11:28:51 pve2 corosync[868133]:   [KNET  ] link: host: 1 link: 0 is down
Aug 31 11:28:51 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:28:51 pve2 corosync[868133]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:28:53 pve2 corosync[868133]:   [KNET  ] rx: host: 1 link: 0 is up
Aug 31 11:28:53 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:28:57 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 1237 ms
Aug 31 11:29:11 pve2 corosync[868133]:   [KNET  ] link: host: 1 link: 0 is down
Aug 31 11:29:11 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:29:11 pve2 corosync[868133]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:29:13 pve2 corosync[868133]:   [KNET  ] rx: host: 1 link: 0 is up
Aug 31 11:29:13 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:29:19 pve2 corosync[868133]:   [KNET  ] link: host: 3 link: 0 is down
Aug 31 11:29:19 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:29:19 pve2 corosync[868133]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:29:20 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 279 ms
Aug 31 11:29:20 pve2 corosync[868133]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:29:20 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:29:21 pve2 corosync[868133]:   [TOTEM ] A new membership (1:281884) was formed. Members
Aug 31 11:29:21 pve2 corosync[868133]:   [CPG   ] downlist left_list: 0 received
Aug 31 11:29:21 pve2 corosync[868133]:   [CPG   ] downlist left_list: 0 received
Aug 31 11:29:21 pve2 corosync[868133]:   [CPG   ] downlist left_list: 0 received
Aug 31 11:29:21 pve2 corosync[868133]:   [QUORUM] Members[3]: 1 2 3
Aug 31 11:29:21 pve2 corosync[868133]:   [MAIN  ] Completed service synchronization, ready to provide service.
Aug 31 11:29:32 pve2 corosync[868133]:   [KNET  ] link: host: 3 link: 0 is down
Aug 31 11:29:32 pve2 corosync[868133]:   [KNET  ] link: host: 1 link: 0 is down
Aug 31 11:29:32 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:29:32 pve2 corosync[868133]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:29:32 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:29:32 pve2 corosync[868133]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:29:33 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 453 ms
Aug 31 11:29:33 pve2 corosync[868133]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:29:33 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:29:33 pve2 corosync[868133]:   [KNET  ] rx: host: 1 link: 0 is up
Aug 31 11:29:33 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:29:40 pve2 corosync[868133]:   [KNET  ] link: host: 3 link: 0 is down
Aug 31 11:29:40 pve2 corosync[868133]:   [KNET  ] link: host: 1 link: 0 is down
Aug 31 11:29:40 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:29:40 pve2 corosync[868133]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:29:40 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:29:40 pve2 corosync[868133]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:29:41 pve2 corosync[868133]:   [KNET  ] rx: host: 1 link: 0 is up
Aug 31 11:29:41 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:29:41 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 63 ms
Aug 31 11:29:42 pve2 corosync[868133]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:29:42 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:29:44 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 1237 ms
Aug 31 11:29:47 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 60 ms
Aug 31 11:29:47 pve2 corosync[868133]:   [TOTEM ] A new membership (1:281900) was formed. Members joined: 1 left: 1
Aug 31 11:29:47 pve2 corosync[868133]:   [TOTEM ] Failed to receive the leave message. failed: 1
Aug 31 11:29:48 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 1a 1b
…
Aug 31 11:29:54 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 1a 1b
Aug 31 11:29:55 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 1237 ms
Aug 31 11:29:56 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 1a 1b
…
Aug 31 11:29:57 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 1a 1b
Aug 31 11:29:58 pve2 corosync[868133]:   [KNET  ] link: host: 3 link: 0 is down
Aug 31 11:29:58 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:29:58 pve2 corosync[868133]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:29:58 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 1a 1b
Aug 31 11:29:59 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 61 ms
Aug 31 11:29:59 pve2 corosync[868133]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:29:59 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:30:00 pve2 corosync[868133]:   [KNET  ] link: host: 1 link: 0 is down
Aug 31 11:30:00 pve2 corosync[868133]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:30:00 pve2 corosync[868133]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:30:01 pve2 corosync[868133]:   [KNET  ] rx: host: 1 link: 0 is up
 
Part2
Code:
Aug 31 11:30:06 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 1237 ms
Aug 31 11:30:08 pve2 corosync[868133]:   [TOTEM ] A new membership (1:281912) was formed. Members joined: 1 left: 1
Aug 31 11:30:08 pve2 corosync[868133]:   [TOTEM ] Failed to receive the leave message. failed: 1
Aug 31 11:30:08 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 4 5
…
Aug 31 11:30:10 pve2 corosync[868133]:   [TOTEM ] Retransmit List: 4 5
Aug 31 11:30:11 pve2 corosync[868133]:   [TOTEM ] Token has not been received in 845 ms
Aug 31 11:30:12 pve2 corosync[868133]:   [TOTEM ] A processor failed, forming new configuration.
Aug 31 11:30:14 pve2 corosync[868133]:   [TOTEM ] A new membership (2:281916) was formed. Members left: 1 3
Aug 31 11:30:14 pve2 corosync[868133]:   [TOTEM ] Failed to receive the leave message. failed: 1 3
Aug 31 11:30:14 pve2 corosync[868133]:   [CPG   ] downlist left_list: 2 received
Aug 31 11:30:14 pve2 corosync[868133]:   [QUORUM] This node is within the non-primary component and will NOT provide any services.
Aug 31 11:30:14 pve2 corosync[868133]:   [QUORUM] Members[1]: 2
Aug 31 11:30:14 pve2 corosync[868133]:   [MAIN  ] Completed service synchronization, ready to provide service.
Aug 31 11:30:15 pve2 corosync[868133]:   [KNET  ] link: host: 3 link: 0 is down
Aug 31 11:30:15 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:30:15 pve2 corosync[868133]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:30:16 pve2 corosync[868133]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:30:16 pve2 corosync[868133]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:30:16 pve2 systemd[1]: corosync.service: Main process exited, code=killed, status=11/SEGV
Aug 31 11:30:16 pve2 systemd[1]: corosync.service: Failed with result 'signal'.
Aug 31 11:38:44 pve2 corosync[885834]:   [MAIN  ] Corosync Cluster Engine 3.0.2-dirty starting up
Aug 31 11:38:44 pve2 corosync[885834]:   [MAIN  ] Corosync built-in features: dbus monitoring watchdog systemd xmlconf snmp pie relro bindnow
Aug 31 11:38:44 pve2 corosync[885834]:   [MAIN  ] interface section bindnetaddr is used together with nodelist. Nodelist one is going to be used.
Aug 31 11:38:44 pve2 corosync[885834]:   [MAIN  ] Please migrate config file to nodelist.
Aug 31 11:38:44 pve2 corosync[885834]:   [TOTEM ] Initializing transport (Kronosnet).
Aug 31 11:38:44 pve2 corosync[885834]:   [TOTEM ] kronosnet crypto initialized: aes256/sha256
Aug 31 11:38:44 pve2 corosync[885834]:   [TOTEM ] totemknet initialized
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] common: crypto_nss.so has been loaded from /usr/lib/x86_64-linux-gnu/kronosnet/crypto_nss.so
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync configuration map access [0]
Aug 31 11:38:44 pve2 corosync[885834]:   [QB    ] server name: cmap
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync configuration service [1]
Aug 31 11:38:44 pve2 corosync[885834]:   [QB    ] server name: cfg
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync cluster closed process group service v1.01 [2]
Aug 31 11:38:44 pve2 corosync[885834]:   [QB    ] server name: cpg
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync profile loading service [4]
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync resource monitoring service [6]
Aug 31 11:38:44 pve2 corosync[885834]:   [WD    ] Watchdog not enabled by configuration
Aug 31 11:38:44 pve2 corosync[885834]:   [WD    ] resource load_15min missing a recovery key.
Aug 31 11:38:44 pve2 corosync[885834]:   [WD    ] resource memory_used missing a recovery key.
Aug 31 11:38:44 pve2 corosync[885834]:   [WD    ] no resources configured.
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync watchdog service [7]
Aug 31 11:38:44 pve2 corosync[885834]:   [QUORUM] Using quorum provider corosync_votequorum
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync vote quorum service v1.0 [5]
Aug 31 11:38:44 pve2 corosync[885834]:   [QB    ] server name: votequorum
Aug 31 11:38:44 pve2 corosync[885834]:   [SERV  ] Service engine loaded: corosync cluster quorum service v0.1 [3]
Aug 31 11:38:44 pve2 corosync[885834]:   [QB    ] server name: quorum
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 0)
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 1 has no active links
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 2 (passive) best link: 0 (pri: 0)
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 2 has no active links
Aug 31 11:38:44 pve2 corosync[885834]:   [TOTEM ] A new membership (2:281920) was formed. Members joined: 2
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 0)
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:38:44 pve2 corosync[885834]:   [KNET  ] host: host: 3 has no active links
Aug 31 11:38:44 pve2 corosync[885834]:   [CPG   ] downlist left_list: 0 received
Aug 31 11:38:44 pve2 corosync[885834]:   [QUORUM] Members[1]: 2
Aug 31 11:38:44 pve2 corosync[885834]:   [MAIN  ] Completed service synchronization, ready to provide service.
Aug 31 11:38:45 pve2 corosync[885834]:   [KNET  ] rx: host: 3 link: 0 is up
Aug 31 11:38:45 pve2 corosync[885834]:   [KNET  ] rx: host: 1 link: 0 is up
Aug 31 11:38:45 pve2 corosync[885834]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Aug 31 11:38:45 pve2 corosync[885834]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Aug 31 11:38:45 pve2 corosync[885834]:   [KNET  ] pmtud: PMTUD link change for host: 3 link: 0 from 469 to 1397
Aug 31 11:38:45 pve2 corosync[885834]:   [KNET  ] pmtud: PMTUD link change for host: 1 link: 0 from 469 to 1397
Aug 31 11:38:45 pve2 corosync[885834]:   [KNET  ] pmtud: Global data MTU changed to: 1397
 
please make sure you've installed the latest updates (especially for corosync and libknet1) - there have been a few bugfixes lately

I hope this helps!

else please post the output of `pveversion -v`