[hobbit] Re: Determining yellow and red level warnings for cpu/load

[Xymon User in Richmond]

The servers those thresholds are applied to are mostly Dell PE2850
machines with dual 3.4 single cores, and the values are based on
experiences over time with where we'll start to get problem tickets based
on response times.

On Sun, May 17, 2009 12:08, Josh Luthman wrote:
> Can I ask why you picked 20 and 30?  Could you share what hardware you're
> running?
>
> On 5/17/09, Xymon User in Richmond <hobbit at epperson.homelinux.net> wrote:
>
>> Josh, I read it the same way Kim did--that you were literally asking
>> _how_ to change the values.  I thought it strange that you wouldn't
>> know given that you're one of the most active contributors on this list
>> WRT solving config problems, but it seemed you were saying you made
>> changes and they didn't work.
>>
>> 5 and 10 are way too low IMO for most scenarios on current
>> multi-core/multi-processor hardware.  I typically use 20 and 30 for
>> servers where online response time is important, much higher for
>> background-type servers like sendmail.
>>
>> On Sun, May 17, 2009 11:32, Josh Luthman wrote:
>>> I understand how and I even explained that I have changed the values.
>>>
>>>
>>> The default for yellow and red is 5 and 10.  The server that
>>> introduced the question was increased to 10 and 25.
>>>
>>> My question is what do the other users on this mailing list change
>>> them to and based on what information?
>>>
>>> On 5/17/09, Kim Johansen <hobbit at weiser.dk> wrote:
>>>> On Sunday 17 May 2009 03:22:43 Josh Luthman wrote:
>>>>> I have a server that does does a lot of work all the time - a
>>>>> vmware server.  Each virtual machine does its own things, but the
>>>>> host OS has load that gets to 20 at times.  Everything is just as
>>>>> responsive during these times, so the default load warnings
>>>>> aren't valid for me.
>>>>>
>>>>> I changed my alerts based on a test with stress (
>>>>> http://freshmeat.net/projects/stress).
>>>>>
>>>>> Does everyone else just accept the defaults for yellow and red?
>>>>> If not, how do you increase it?
>>>>
>>>> In the help -> Configuring Monitoring is there a good description
>>>> on how to change default. It is the hobbit-clients.cfg you need to
>>>> change in, the file it self also have a good description
>>>>
>>>> -- Kim Johansen
>>>>