[Check_mk (english)] R: Re: Detect virtual machines fast reboot

Archive checkmk-en
1

Hi,

with CEE 1.4.0i2 you can create a manual check „Uptime since last reboot“ based on snmp, esx or OS-uptime.

Just check out i fit works for your version as well.

Regards

Thomas

2

I misunderstood you before… I gave you a reply for –decreasing- freq instead of increasing freq… Kindly ignore my confusing
response J

There are usually several solutions to a problem.

Actually, increasing ping frequency could be a good one in your situation, I don’t know.

Using SNMP this can be solved more elegantly in my opinion. As my environment allows for SNMP that’s what I’ll use.

Arno Wijnhoven

On Behalf Of mlist@libero.it

···

The uptime solution (based on snmp, esx or OS) sound goods, I’ll give it a try. Thanks for this great tip!
Snmp is not an option because I should open the protocol for all network and in my environment is not so easy for many reasons that I won’t mention

Anyway I still don’t understand because increase ping frequency wouldn’t be an option. Is because isn’t possibile or just because is a bad option? and why?

----Messaggio originale----

Da: “Rotter, Thomas” Thomas.Rotter@stadtwerke-huenfeld.de

Data: 17/01/2017 11.56

A: "‘mlist@libero.it’"mlist@libero.it

Cc: "‘checkmk-en@lists.mathias-kettner.de’"checkmk-en@lists.mathias-kettner.de
Ogg: Re: [Check_mk (english)] Detect virtual machines fast reboot

Hi,

with CEE 1.4.0i2 you can create a manual check „Uptime since last reboot“ based on snmp, esx or OS-uptime.

Just check out i fit works for your version as well.

Regards

Thomas

Von:
checkmk-en-bounces@lists.mathias-kettner.de [mailto:checkmk-en-bounces@lists.mathias-kettner.de]
Im Auftrag von mlist@libero.it
Gesendet: Dienstag, 17. Januar 2017 10:44
An: checkmk-en@lists.mathias-kettner.de
Betreff: [Check_mk (english)] Detect virtual machines fast reboot

Hi all

I just noticed that when virtual machines reboot, often check_mk doesn’t detect becuase the reboot is very fast.
Ho did you solve the problem? Maybe pinging every 10 seconds? How could I change the global setting for ping?

3

Hi

Just another vote for the uptime check. We add the following config in main.mk (WARNING if uptime of host is less than 10 minutes)

check_parameters += [

( {“min”: (600, 0)}, ALL_HOSTS, [“Uptime”] ),

]

As for uptime vs ping - well, if the host didn’t come back then we’d see a continuing host down I guess.

If it’s gone down and recovered I want to know about it. But the ping check is irrelevant at that point.

This 10 minute check lets us know something has happened however.

···

On Tue, Jan 17, 2017 at 3:30 PM, mlist@libero.it mlist@libero.it wrote:

The uptime solution (based on snmp, esx or OS) sound goods, I’ll give it a try. Thanks for this great tip!
Snmp is not an option because I should open the protocol for all network and in my environment is not so easy for many reasons that I won’t mention

Anyway I still don’t understand because increase ping frequency wouldn’t be an option. Is because isn’t possibile or just because is a bad option? and why?

Hi,

with CEE 1.4.0i2 you can create a manual check „Uptime since last reboot“ based on snmp, esx or OS-uptime.

Just check out i fit works for your version as well.

Regards

Thomas

Von: checkmk-en-bounces@lists.mathias-kettner.de [mailto:checkmk-en-bounces@lists.mathias-kettner.de]
Im Auftrag von mlist@libero.it
Gesendet: Dienstag, 17. Januar 2017 10:44
An: checkmk-en@lists.mathias-kettner.de
Betreff: [Check_mk (english)] Detect virtual machines fast reboot

Hi all

I just noticed that when virtual machines reboot, often check_mk doesn’t detect becuase the reboot is very fast.
Ho did you solve the problem? Maybe pinging every 10 seconds? How could I change the global setting for ping?

----Messaggio originale----

Da: “Rotter, Thomas” <Thomas.Rotter@stadtwerke-huenfeld.de>

Data: 17/01/2017 11.56

A: “‘mlist@libero.it’”<mlist@libero.it>

Cc: “‘checkmk-en@lists.mathias-kettner.de’”<checkmk-en@lists.mathias-kettner.de>

Ogg: Re: [Check_mk (english)] Detect virtual machines fast reboot

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Regards

Jolyon

Founder, Limilo Ltd

www.limilo.com

Registered in England no: 07778174

Registered office: Netpark Incubator, Thomas Wright Way, Sedgefield, TS21 3FD

VAT no: 190425515

4

kinda confused about all this talk about ‘Uptime check’…I’ve got
a rule that
shows any host with a system uptime of less than 30 minutes as a
warning.
It doesn’t matter how fast the system reboots, it will still show an
uptime
warning for the next 20-30 minutes.
It works for all my linux/solars/windows hosts…(not so much
freenas/truenas).
About half of the hosts are esx VMs monitored via check_mk client
(not vsphere).

Uptime since last reboot

image001.png

···

On 01/18/2017 10:28 AM, Jolyon Brown
wrote:

Hi

      Just another vote for the uptime check. We add the

following config in main.mk (WARNING if uptime of host
is less than 10 minutes)

check_parameters += [

�( {“min”: (600, 0)}, ALL_HOSTS, [“Uptime”] ),

]

      As for uptime vs ping - well, if the host didn't come back

then we’d see a continuing host down I guess.�

      If it's gone down and recovered I want to know about it.

But the ping check is irrelevant at that point.

      This 10 minute check lets us know something has happened

however.�

Regards

Jolyon�

Founder, Limilo Ltd

www.limilo.com

Registered in England no: 07778174

                      Registered office: Netpark Incubator,

Thomas Wright Way, Sedgefield, TS21 3FD

VAT no: 190425515

On Tue, Jan 17, 2017 at 3:30 PM,

      wrote:

_______________________________________________
checkmk-en mailing list

mlist@libero.itmlist@libero.it

          The uptime solution (based on snmp, esx or OS) sound

goods, I’ll give it a try. Thanks for this great tip!

          Snmp is not an option because I should open the protocol

for all network and in my environment is not so easy for
many reasons that I won’t mention

          Anyway I still don't understand because increase ping

frequency wouldn’t be an option. Is because isn’t
possibile or just because is a bad option? and why?

----Messaggio originale----

          Da: "Rotter, Thomas" <Thomas.Rotter@stadtwerke-[huenfeld.de](http://huenfeld.de)>

          Data: 17/01/2017 11.56

          A: "'mlist@libero.it'"<mlist@[libero.it](http://libero.it)>

          Cc: "'-

        _______________________________________________

        checkmk-en mailing list

        -

Hi,

�

                with

CEE 1.4.0i2 you can create a manual check �Uptime
since last reboot� based on snmp, esx or OS-uptime.

�

                Just

check out i fit works for your version as well.

�

�

Regards

Thomas

�

Von:
checkmk-en-bounces@lists.mathias-kettner.de
[mailto:checkmk-en-bounces@lists.mathias-kettner.de ]
Im Auftrag von mlist@libero.it
Gesendet: Dienstag, 17. Januar 2017 10:44
An: -

�

Hi all

                I just noticed that when virtual machines reboot,

often check_mk doesn’t detect becuase the reboot is
very fast.
Ho did you solve the problem? Maybe pinging every 10
seconds? How could I change the global setting for
ping?

checkmk-en@lists.mathiaskettner.de’"<checkmk-en@lists.mathias-kettner.de>
Ogg: Re: [Check_mk (english)] Detect virtual machines
fast reboot

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