[mrtg] Re: Fwd: Newbie - Problems with CPU, memory, swap on C ompaq Deskpro

Alvaro Luiz Maia Motta ALVAROLM at nec.com.br
Thu Mar 24 19:40:14 MET 2005


..... Also, bear in mind that when you issue a snmpget it returns the number
for that specific time. 
In order to get the same values, both tools (snmpget & MRTG) would have to
hit the target at the same time. 

Since it's almost impossible ....


HTH,

AL

-----Original Message-----
From: Corstian [mailto:corstian at consonare.nl] 
Sent: Wednesday, March 23, 2005 11:03 AM
To: Koelstra, J. (Jan)
Cc: mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: Fwd: Newbie - Problems with CPU, memory, 
swap on Compaq Deskpro


Jan,

Thank you for helping me!

I didn't know I had a MIB-browser, but on the internet I found 
the following command, which I tried on my system: (maybe you 
know a better
one...??)

# snmpget -v1 -c public localhost ssCpuRawUser.0 
UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 219726

# snmpget -v1 -c public localhost ssCpuRawSystem.0 
UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 42828

# head -n5 cpu.log
1111585802 220831 42760
1111585802 1 1 1 1
1111585645 1 1 1 1
1111585500 1 1 1 1
1111585200 1 1 1 1

As you can see, the values are not exactly the same, but they 
are pretty close to each other...

Isn't it strange that the other values of the file are all set 
to "1" ?? Because this is the value I see in the graph all the time...

regards/groeten,
Corstian

Koelstra, J. (Jan) zei:
>
> Corstian,
>
> Are you sure the oid's are returning the values you want to graph?
>
> Use a MIB-browser from the host you run MRTG on to verify what is 
> returned by "ssCpuRawUser.0" and the other oid's you use in your 
> config file. The returned values have to match with the 
values you see 
> in the first line of your *.log and *.old files.
>
> Hth,
>
> Jan.
>
> -----Original Message-----
> From: Corstian [mailto:corstian at consonare.nl]
> Sent: Tuesday, March 22, 2005 1:16 PM
> To: Koelstra, J. (Jan)
> Cc: Corstian; mrtg at list.ee.ethz.ch
> Subject: RE: [mrtg] Fwd: Newbie - Problems with CPU, memory, swap on 
> Compaq Deskpro
>
>
> Hi Jan,
>
> MRTG is running without any error, so the syntax of my config-file is 
> correct, I guess...
>
> I scheduled MRTG to run every 5 minutes as follows:
> */5 * * * * env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.conf --logging 
> /var/log/mrtg.log
>
> The output of MRTG can be found at 
> http://pinkpanther.homelinux.net/System/mrtg/
> To see the graphs: logon as user "guest" with password "guest".
>
> Here you find a page, created by the indexmaker, containing 5 graphs. 
> I will walk through them, and explain their problems.
>
> 1. Network Traffic Analysis (eth0): looks ok for me :-)
>
> 2. load average (cpu): I just get a constant value of 1.0 % for both 
> user load as system load, instead of the fluctuating graph I expect. 
> It just cannot be true, that the load is that constant.
>
> 3. load average (cpu2): Almost the same as cpu, but here I get 0%, 
> which really cannot be true
>
> 4. Memory Statistics: Physical Memory: Total Memory looks ok (The 
> system has 256 MB installed), but the Available Memory on the 
graph is 
> always 0 MB, while the real available memory is fluctuating between 5 
> MB and 20 MB
>
> 5. Memory Statistics: Swap: Available swap on the graph is now always 
> 0 MB, while it should be (most of the time) 512 MB. Total swap on the 
> graph is fluctuating betweeen 0 MB and 10 MB, maybe this isn't the 
> Total Swap, but the used swap, but I am not sure about that.
>
> Again the links to my system:
> Here is a link to my mrtg.conf file:
>   http://pinkpanther.homelinux.net/System/mrtg/mrtg.conf
>
> Here you can find the actual graphs, created by mrtg:
>   http://pinkpanther.homelinux.net/System/mrtg/
>
> Here you can find some info about my system (created by phpSysinfo)
>   http://pinkpanther.homelinux.net/System/info/
>
> To logon to these webpages, you can use:
> user: guest
> pass: guest
>
> regards,
> Corstian
>

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