It says it is an eight-byte signed integer. That’s 2^63 correct? There should be several millennia before a rollover if my interpretation is correct.

 

 

 

Cheers,

Michael Vieth

 

From: observium [mailto:observium-bounces@observium.org] On Behalf Of Phillip Baker
Sent: Thursday, May 21, 2015 9:14 AM
To: Observium Network Observation System
Subject: Re: [Observium] What triggers the 'device rebooted' alert?

 

This is a standard issue with 32 bit counters and uptimes, so I’d start with google first! J

 

This isn’t an observium/database issue.

 

Phil

 

From: observium [mailto:observium-bounces@observium.org] On Behalf Of Michael Vieth
Sent: 21 May 2015 15:04
To: Observium Network Observation System
Subject: Re: [Observium] What triggers the 'device rebooted' alert?

 

Right, the graph shows an uptime of ~ 8 hours now, but the device itself says 497 days. Which observium concurs with… until about 8 hours ago.

 

I’m not great with sql so am getting a co-worker to pull the DB info to see if that sheds any more light on the issue.

 

 

 

Cheers,

Michael Vieth

 

From: observium [mailto:observium-bounces@observium.org] On Behalf Of Spencer Ryan
Sent: Thursday, May 21, 2015 8:38 AM
To: Observium Network Observation System
Subject: Re: [Observium] What triggers the 'device rebooted' alert?

 

Device-->Graphs-->System tab. One of the graphs will show you uptime.



Spencer Ryan
| Senior Systems Administrator | sryan@arbor.net

Arbor Networks

+1.734.794.5033 (d) | +1.734.846.2053 (m)

 

On Thu, May 21, 2015 at 9:36 AM, Michael Vieth <MVieth@nexatech.com> wrote:

Right, I checked my config.php and saw it as a 24hour setting.

 

I’ll look in the database for any uptime count.

 

 

 

Cheers,

Michael Vieth

 

From: observium [mailto:observium-bounces@observium.org] On Behalf Of Spencer Ryan
Sent: Thursday, May 21, 2015 8:25 AM
To: Observium Network Observation System
Subject: Re: [Observium] What triggers the 'device rebooted' alert?

 

A device uptime of < 24 hours by default.

My guess is the SNMP counter rolled over on whatever device it's monitoring so observium sees it as a reboot.



Spencer Ryan
| Senior Systems Administrator | sryan@arbor.net

Arbor Networks

 

On Thu, May 21, 2015 at 9:23 AM, Michael Vieth <MVieth@nexatech.com> wrote:

I am showing a device reboot alert but the uptime is shown to be over a year.

The reboot is reported to happen last night precisely at midnight.

Using version 0.15.3.6343

 

 

 

Cheers,

 

Description: cid:image001.jpg@01CA15C7.9F525A10

  Michael Vieth  | Network Engineer

Nexa Technologies

801 E Campbell Rd. Ste 400 | Richardson, TX 75081

Phone: (972) 590-8669 x1906

www.nexatech.com

 

 


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