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Date: Tue, 29 Sep 2020 13:50:58 +0200 (CEST)
From: Alexandre DERUMIER <aderumier@odiso.com>
To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>
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Thread-Topic: corosync bug: cluster break after 1 node clean shutdown
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Subject: Re: [pve-devel] corosync bug: cluster break after 1 node clean
 shutdown
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I have reuploaded the logs

node1
-----
start corosync : 12:08:33   (corosync.log)


node2 (/etc/pve lock)
-----
Current time : 12:08:39


node1 (stop corosync : ---> not unlocked)   (corosync-stop.log)
-----
12:28:11 : systemctl stop corosync

node2 (start corosync: ----> /etc/pve unlocked    (corosync-start.log)
------------------------------------------------

13:41:16 : systemctl start corosync


----- Mail original -----
De: "aderumier" <aderumier@odiso.com>
=C3=80: "Proxmox VE development discussion" <pve-devel@lists.proxmox.com>
Envoy=C3=A9: Mardi 29 Septembre 2020 13:43:08
Objet: Re: [pve-devel] corosync bug: cluster break after 1 node clean shutd=
own

>>=20
>>node1 (stop corosync : unlock /etc/pve)=20
>>-----=20
>>12:28:11 : systemctl stop corosync=20

sorry, this was wrong,I need to start corosync after the stop to get it wor=
king again=20
I'll reupload theses logs=20


----- Mail original -----=20
De: "aderumier" <aderumier@odiso.com>=20
=C3=80: "Proxmox VE development discussion" <pve-devel@lists.proxmox.com>=
=20
Envoy=C3=A9: Mardi 29 Septembre 2020 12:52:44=20
Objet: Re: [pve-devel] corosync bug: cluster break after 1 node clean shutd=
own=20

here a new test:=20

http://odisoweb1.odiso.net/test6/=20

node1=20
-----=20
start corosync : 12:08:33=20


node2 (/etc/pve lock)=20
-----=20
Current time : 12:08:39=20


node1 (stop corosync : unlock /etc/pve)=20
-----=20
12:28:11 : systemctl stop corosync=20


backtraces: 12:26:30=20


coredump : 12:27:21=20


----- Mail original -----=20
De: "aderumier" <aderumier@odiso.com>=20
=C3=80: "Proxmox VE development discussion" <pve-devel@lists.proxmox.com>=
=20
Envoy=C3=A9: Mardi 29 Septembre 2020 11:37:41=20
Objet: Re: [pve-devel] corosync bug: cluster break after 1 node clean shutd=
own=20

>>with a change of how the logging is set up (I now suspect that some=20
>>messages might get dropped if the logging throughput is high enough),=20
>>let's hope this gets us the information we need. please repeat the test5=
=20
>>again with these packages.=20

I'll test this afternoon=20

>>is there anything special about node 13? network topology, slower=20
>>hardware, ... ?=20

no nothing special, all nodes have exactly same hardware/cpu (24cores/48thr=
eads 3ghz)/memory/disk.=20

this node is around 10% cpu usage, load is around 5.=20

----- Mail original -----=20
De: "Fabian Gr=C3=BCnbichler" <f.gruenbichler@proxmox.com>=20
=C3=80: "Proxmox VE development discussion" <pve-devel@lists.proxmox.com>=
=20
Envoy=C3=A9: Mardi 29 Septembre 2020 10:51:32=20
Objet: Re: [pve-devel] corosync bug: cluster break after 1 node clean shutd=
own=20

On September 28, 2020 5:59 pm, Alexandre DERUMIER wrote:=20
> Here a new test http://odisoweb1.odiso.net/test5=20
>=20
> This has occured at corosync start=20
>=20
>=20
> node1:=20
> -----=20
> start corosync : 17:30:19=20
>=20
>=20
> node2: /etc/pve locked=20
> --------------=20
> Current time : 17:30:24=20
>=20
>=20
> I have done backtrace of all nodes at same time with parallel ssh at 17:3=
5:22=20
>=20
> and a coredump of all nodes at same time with parallel ssh at 17:42:26=20
>=20
>=20
> (Note that this time, /etc/pve was still locked after backtrace/coredump)=
=20

okay, so this time two more log lines got printed on the (again) problem=20
causing node #13, but it still stops logging at a point where this makes=20
no sense.=20

I rebuilt the packages:=20

f318f12e5983cb09d186c2ee37743203f599d103b6abb2d00c78d312b4f12df942d8ed1ff5d=
e6e6c194785d0a81eb881e80f7bbfd4865ca1a5a509acd40f64aa pve-cluster_6.1-8_amd=
64.deb=20
b220ee95303e22704793412e83ac5191ba0e53c2f41d85358a247c248d2a6856e5b791b1d12=
c36007a297056388224acf4e5a1250ef1dd019aee97e8ac4bcac7 pve-cluster-dbgsym_6.=
1-8_amd64.deb=20

with a change of how the logging is set up (I now suspect that some=20
messages might get dropped if the logging throughput is high enough),=20
let's hope this gets us the information we need. please repeat the test5=20
again with these packages.=20

is there anything special about node 13? network topology, slower=20
hardware, ... ?=20


_______________________________________________=20
pve-devel mailing list=20
pve-devel@lists.proxmox.com=20
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel=20


_______________________________________________=20
pve-devel mailing list=20
pve-devel@lists.proxmox.com=20
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel=20


_______________________________________________=20
pve-devel mailing list=20
pve-devel@lists.proxmox.com=20
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel=20


_______________________________________________=20
pve-devel mailing list=20
pve-devel@lists.proxmox.com=20
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel=20