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From: Thomas Lamprecht <t.lamprecht@proxmox.com>
To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>,
	Alexandre DERUMIER <aderumier@odiso.com>
Subject: Re: [pve-devel] corosync bug: cluster break after 1 node clean shutdown
Date: Thu, 10 Sep 2020 20:21:14 +0200	[thread overview]
Message-ID: <9e2974b8-3c39-0fda-6f73-6677e3d796f4@proxmox.com> (raw)
In-Reply-To: <1245358354.508169.1599737684557.JavaMail.zimbra@odiso.com>

On 10.09.20 13:34, Alexandre DERUMIER wrote:
>>> as said, if the other nodes where not using HA, the watchdog-mux had no
>>> client which could expire.
> 
> sorry, maybe I have wrong explained it,
> but all my nodes had HA enabled.
> 
> I have double check lrm_status json files from my morning backup 2h before the problem,
> they were all in "active" state. ("state":"active","mode":"active" )
> 

OK, so all had a connection to the watchdog-mux open. This shifts the suspicion
again over to pmxcfs and/or corosync.

> I don't why node7 don't have rebooted, the only difference is that is was the crm master.
> (I think crm also reset the watchdog counter ? maybe behaviour is different than lrm ?)

The watchdog-mux stops updating the real watchdog as soon any client disconnects or times
out. It does not know which client (daemon) that was.

>>> above lines also indicate very high load. 
>>> Do you have some monitoring which shows the CPU/IO load before/during this event? 
> 
> load (1,5,15 ) was: 6  (for 48cores), cpu usage: 23%
> no iowait on disk (vms are on a remote ceph, only proxmox services are running on local ssd disk)
> 
> so nothing strange here :/

Hmm, the long loop times could then be the effect of a pmxcfs read or write
operation being (temporarily) stuck.





  reply	other threads:[~2020-09-10 18:21 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-03 14:11 Alexandre DERUMIER
2020-09-04 12:29 ` Alexandre DERUMIER
2020-09-04 15:42   ` Dietmar Maurer
2020-09-05 13:32     ` Alexandre DERUMIER
2020-09-05 15:23       ` dietmar
2020-09-05 17:30         ` Alexandre DERUMIER
2020-09-06  4:21           ` dietmar
2020-09-06  5:36             ` Alexandre DERUMIER
2020-09-06  6:33               ` Alexandre DERUMIER
2020-09-06  8:43               ` Alexandre DERUMIER
2020-09-06 12:14                 ` dietmar
2020-09-06 12:19                   ` dietmar
2020-09-07  7:00                     ` Thomas Lamprecht
2020-09-07  7:19                   ` Alexandre DERUMIER
2020-09-07  8:18                     ` dietmar
2020-09-07  9:32                       ` Alexandre DERUMIER
2020-09-07 13:23                         ` Alexandre DERUMIER
2020-09-08  4:41                           ` dietmar
2020-09-08  7:11                             ` Alexandre DERUMIER
2020-09-09 20:05                               ` Thomas Lamprecht
2020-09-10  4:58                                 ` Alexandre DERUMIER
2020-09-10  8:21                                   ` Thomas Lamprecht
2020-09-10 11:34                                     ` Alexandre DERUMIER
2020-09-10 18:21                                       ` Thomas Lamprecht [this message]
2020-09-14  4:54                                         ` Alexandre DERUMIER
2020-09-14  7:14                                           ` Dietmar Maurer
2020-09-14  8:27                                             ` Alexandre DERUMIER
2020-09-14  8:51                                               ` Thomas Lamprecht
2020-09-14 15:45                                                 ` Alexandre DERUMIER
2020-09-15  5:45                                                   ` dietmar
2020-09-15  6:27                                                     ` Alexandre DERUMIER
2020-09-15  7:13                                                       ` dietmar
2020-09-15  8:42                                                         ` Alexandre DERUMIER
2020-09-15  9:35                                                           ` Alexandre DERUMIER
2020-09-15  9:46                                                             ` Thomas Lamprecht
2020-09-15 10:15                                                               ` Alexandre DERUMIER
2020-09-15 11:04                                                                 ` Alexandre DERUMIER
2020-09-15 12:49                                                                   ` Alexandre DERUMIER
2020-09-15 13:00                                                                     ` Thomas Lamprecht
2020-09-15 14:09                                                                       ` Alexandre DERUMIER
2020-09-15 14:19                                                                         ` Alexandre DERUMIER
2020-09-15 14:32                                                                         ` Thomas Lamprecht
2020-09-15 14:57                                                                           ` Alexandre DERUMIER
2020-09-15 15:58                                                                             ` Alexandre DERUMIER
2020-09-16  7:34                                                                               ` Alexandre DERUMIER
2020-09-16  7:58                                                                                 ` Alexandre DERUMIER
2020-09-16  8:30                                                                                   ` Alexandre DERUMIER
2020-09-16  8:53                                                                                     ` Alexandre DERUMIER
     [not found]                                                                                     ` <1894376736.864562.1600253445817.JavaMail.zimbra@odiso.com>
2020-09-16 13:15                                                                                       ` Alexandre DERUMIER
2020-09-16 14:45                                                                                         ` Thomas Lamprecht
2020-09-16 15:17                                                                                           ` Alexandre DERUMIER
2020-09-17  9:21                                                                                             ` Fabian Grünbichler
2020-09-17  9:59                                                                                               ` Alexandre DERUMIER
2020-09-17 10:02                                                                                                 ` Alexandre DERUMIER
2020-09-17 11:35                                                                                                   ` Thomas Lamprecht
2020-09-20 23:54                                                                                                     ` Alexandre DERUMIER
2020-09-22  5:43                                                                                                       ` Alexandre DERUMIER
2020-09-24 14:02                                                                                                         ` Fabian Grünbichler
2020-09-24 14:29                                                                                                           ` Alexandre DERUMIER
2020-09-24 18:07                                                                                                             ` Alexandre DERUMIER
2020-09-25  6:44                                                                                                               ` Alexandre DERUMIER
2020-09-25  7:15                                                                                                                 ` Alexandre DERUMIER
2020-09-25  9:19                                                                                                                   ` Fabian Grünbichler
2020-09-25  9:46                                                                                                                     ` Alexandre DERUMIER
2020-09-25 12:51                                                                                                                       ` Fabian Grünbichler
2020-09-25 16:29                                                                                                                         ` Alexandre DERUMIER
2020-09-28  9:17                                                                                                                           ` Fabian Grünbichler
2020-09-28  9:35                                                                                                                             ` Alexandre DERUMIER
2020-09-28 15:59                                                                                                                               ` Alexandre DERUMIER
2020-09-29  5:30                                                                                                                                 ` Alexandre DERUMIER
2020-09-29  8:51                                                                                                                                 ` Fabian Grünbichler
2020-09-29  9:37                                                                                                                                   ` Alexandre DERUMIER
2020-09-29 10:52                                                                                                                                     ` Alexandre DERUMIER
2020-09-29 11:43                                                                                                                                       ` Alexandre DERUMIER
2020-09-29 11:50                                                                                                                                         ` Alexandre DERUMIER
2020-09-29 13:28                                                                                                                                           ` Fabian Grünbichler
2020-09-29 13:52                                                                                                                                             ` Alexandre DERUMIER
2020-09-30  6:09                                                                                                                                               ` Alexandre DERUMIER
2020-09-30  6:26                                                                                                                                                 ` Thomas Lamprecht
2020-09-15  7:58                                                       ` Thomas Lamprecht
2020-12-29 14:21   ` Josef Johansson
2020-09-04 15:46 ` Alexandre DERUMIER
2020-09-30 15:50 ` Thomas Lamprecht
2020-10-15  9:16   ` Eneko Lacunza

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