Comments on: Net-SNMP v5.7 Issues

By: Brice

Brice — Thu, 03 May 2012 21:06:58 +0000

Damn, my bad.

I’ll move to 5.1 and check if the version is the 5.7.1.

By: Joel Knight

Joel Knight — Sun, 29 Apr 2012 23:29:37 +0000

Hey Brice, you’re running the version that has issues with disk utilization. Check out the blog post we’re commenting in and you’ll see some examples. Upgrade to Net-SNMP 5.7.1 and you’ll be good to go.

By: Brice

Brice — Sun, 29 Apr 2012 22:25:57 +0000

visualstation@Charon:ttyp0 ~ % snmpwalk -V
NET-SNMP version: 5.7

By: Brice

Brice — Sun, 29 Apr 2012 22:24:45 +0000

Hi Joel,

Sorry for the late response.

For example, the partition /var/www is “empty” but a walk on the disk data, show me

HOST-RESOURCES-MIB::hrStorageSize.36 = INTEGER: 2066049

HOST-RESOURCES-MIB::hrStorageUsed.36 = INTEGER: 2058339

but if I use df, it gives me the following output:
/dev/wd1b 3.9G 15.1M 3.7G 0% /var/www

Any idea ?

— Output —
HOST-RESOURCES-MIB::hrStorageDescr.1 = STRING: Physical memory
HOST-RESOURCES-MIB::hrStorageDescr.2 = STRING: Real memory
HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
HOST-RESOURCES-MIB::hrStorageDescr.11 = STRING: swap /dev/wd0b
HOST-RESOURCES-MIB::hrStorageDescr.12 = STRING: swap /dev/wd1e
HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: /
HOST-RESOURCES-MIB::hrStorageDescr.32 = STRING: /home
HOST-RESOURCES-MIB::hrStorageDescr.33 = STRING: /tmp
HOST-RESOURCES-MIB::hrStorageDescr.34 = STRING: /usr
HOST-RESOURCES-MIB::hrStorageDescr.35 = STRING: /var
HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /var/www
HOST-RESOURCES-MIB::hrStorageAllocationUnits.1 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.2 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.10 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.11 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.12 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.31 = INTEGER: 2048 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.32 = INTEGER: 2048 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.33 = INTEGER: 2048 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.34 = INTEGER: 2048 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.35 = INTEGER: 2048 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.36 = INTEGER: 2048 Bytes
HOST-RESOURCES-MIB::hrStorageSize.1 = INTEGER: 130959
HOST-RESOURCES-MIB::hrStorageSize.2 = INTEGER: 130958
HOST-RESOURCES-MIB::hrStorageSize.10 = INTEGER: 329590
HOST-RESOURCES-MIB::hrStorageSize.11 = INTEGER: 532224
HOST-RESOURCES-MIB::hrStorageSize.12 = INTEGER: 2104515
HOST-RESOURCES-MIB::hrStorageSize.31 = INTEGER: 65103
HOST-RESOURCES-MIB::hrStorageSize.32 = INTEGER: 235414670
HOST-RESOURCES-MIB::hrStorageSize.33 = INTEGER: 259823
HOST-RESOURCES-MIB::hrStorageSize.34 = INTEGER: 1548247
HOST-RESOURCES-MIB::hrStorageSize.35 = INTEGER: 2066034
HOST-RESOURCES-MIB::hrStorageSize.36 = INTEGER: 2066049
HOST-RESOURCES-MIB::hrStorageUsed.1 = INTEGER: 83670
HOST-RESOURCES-MIB::hrStorageUsed.2 = INTEGER: 83669
HOST-RESOURCES-MIB::hrStorageUsed.10 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.11 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.12 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.31 = INTEGER: 31170
HOST-RESOURCES-MIB::hrStorageUsed.32 = INTEGER: 217362547
HOST-RESOURCES-MIB::hrStorageUsed.33 = INTEGER: 259815
HOST-RESOURCES-MIB::hrStorageUsed.34 = INTEGER: 907066
HOST-RESOURCES-MIB::hrStorageUsed.35 = INTEGER: 2050639
HOST-RESOURCES-MIB::hrStorageUsed.36 = INTEGER: 2058339

Filesystem Size Used Avail Capacity Mounted on
/dev/wd0a 127M 66.3M 54.5M 55% /
/dev/wd1f 449G 34.4G 392G 8% /home
/dev/wd1d 508M 16.0K 482M 0% /tmp
/dev/wd0d 3.0G 1.2G 1.6G 44% /usr
/dev/wd1a 3.9G 30.1M 3.7G 1% /var
/dev/wd1b 3.9G 15.1M 3.7G 0% /var/www

By: Joel Knight

Joel Knight — Tue, 10 Apr 2012 02:04:47 +0000

Hi Marcio,

The easiest way to get the Net-SNMP patches is to upgrade your ports tree to what’s called the -stable branch. There’s instructions in the OpenBSD FAQ for how to do that (http://www.openbsd.org/faq/faq15.html#PortsSecurity). Once you’ve pulled down the -stable version, build and install the port like normal.

By: Marcio

Marcio — Mon, 09 Apr 2012 20:09:47 +0000

Hey Joel
Thanks for this input here.
I’m having some novice trouble.I have managed to use the ports tree and etc.BUT i can’t figure out how to apply the patch available here , could you point me the way please ? Thank You

By: Joel Knight

Joel Knight — Mon, 26 Mar 2012 18:10:16 +0000

Hi Brice,

I’m not seeing that here, no. Is this still on Net-SNMP 5.7.1? What version of OpenBSD? Can you show the actual data vs. what you expect it to be?

By: Joel Knight

Joel Knight — Mon, 26 Mar 2012 18:07:47 +0000

I should’ve posted this here earlier but forgot: I’ve written a post about getting net-snmp and snmpd to work together. This is working quite well for me in instances where I have to pull in external data.

http://www.packetmischief.ca/2012/02/26/net-snmp-and-snmpd-coexistence-on-openbsd/

By: Brice Lilot

Brice Lilot — Mon, 26 Mar 2012 09:53:30 +0000

There are some problems with the last version of Net-SNMP.

After applying your patch (thanks for it), I have a strange behavior, some queries swap the value between used and free (/home, /var).

Have you experimenting some errors like that ?

By: Joel Knight

Joel Knight — Wed, 08 Feb 2012 00:21:18 +0000

Hi, I tried once to forward from snmpd to net-snmp but it didn’t work. I can’t remember any of the details but remember giving up and just running net-snmp directly. Sorry that’s not very helpful.