There are 28 snmpbulkwalk/snmpget processes on that screenshot, which suggests that there are at least 26 pollers running, which is probably causing the problem.

I also see a number of python processes, which suggests there are a lot of poller-wrappers running.

The system is at 100% load, which would explain the problems, because it’ll just spawn more and more processes.

Kill all of this off and it might go back to normal. If it doesn’t, you need to find out which devices are polling slowly, or why everything is polling slowly.

Have you changed the setting that limits poller-wrapper processes in the config?

Adam.

From: observium <observium-bounces@observium.org> On Behalf Of Jacek Dabrowski via observium
Sent: 04 September 2019 16:49
To: observium@observium.org
Cc: Jacek.Dabrowski@selgros.pl
Subject: Re: [Observium] DB Error

Discovery time is very big, top does not show that the server is heavily loaded

Pozdrawiam

Jacek Dąbrowski
Koordynator Administratorów IT


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From: observium <observium-bounces@observium.org> On Behalf Of Greg Peterson via observium
Sent: Wednesday, September 4, 2019 5:20 PM
To: Observium <observium@observium.org>
Cc: Greg Peterson <gpeterson@nescmn.net>
Subject: Re: [Observium] DB Error

I was getting this message when I had devices that didn’t finish polling in five minutes (300s). you can check this by looking at  polling information/Per Device

From: observium [mailto:observium-bounces@observium.org] On Behalf Of Jacek Dabrowski via observium
Sent: Monday, September 02, 2019 3:54 AM
To: observium@observium.org
Cc: Jacek.Dabrowski@selgros.pl
Subject: [Observium] DB Error

Hello,

Yesterday I turned off Observium after turning on the message DB Error 1040 appears, which I can do with it ???

Pozdrawiam

Jacek Dąbrowski