munin-users

[munin-users] SNMP support in Munin

[Nicolai L. <ja...@li...>]

Hi,

I've been working my way towards making munin a MRTG killer (for routers 
and switches, it'll take some time yet) - and arrived at the SNMP 
"problem" some days ago.

Ilmari has made a perl Munin::Plugin::SNMP module for us ages ago, it 
has just never been installed as part of the "make install" process. 
I've corrected that oversight and extended it to support SNMP v3 and 
ported snmp__uptime to use it.  I'm sure I/we'll be adding more 
functions to it in the comming months but it seems a fairly good start 
right now. (I'll even test it for SNMP v3 as soon as I get my switch 
configured correctly, it's rejecting what I thought was the right user 
name).

Any plugin ported to use this module will automatically be able to 
support SNMP 1, 2 and 3 with security extensions.  Porting mostly 
consists of removing code and calling Munin::Plugin::SNMP->session() to 
make a SNMP session object to use.

Anyone with a interest in SNMP plugins please take a look at
http://munin.projects.linpro.no/browser/trunk/node/SNMP.pm.in and 
http://munin.projects.linpro.no/browser/trunk/node/node.d/snmp__uptime.in.
Please post your comments and/or patches and/or ported plugins :-) -- I 
guess the Wiki needs updating now too.

I expect that Munin::Plugin::SNMP will become part of the 1.2 series as 
well but that will be Matthias' call.

Regards,
   Nicolai

Re: [munin-users] SNMP support in Munin

[Philipp N. <phi...@di...>]

Hi!

On Wed, 31.12.2008-00:02:50 +0100, Nicolai Langfeldt wrote:
> I've been working my way towards making munin a MRTG killer (for routers 
> and switches, it'll take some time yet) - and arrived at the SNMP 
> "problem" some days ago.
> 
> Ilmari has made a perl Munin::Plugin::SNMP module for us ages ago, it 
> has just never been installed as part of the "make install" process. 

I just installed this new old SNMP module and use it on two nodes. After
setting the configuration to snmp version 1, everything is running as
good as is was before the upgrade. Seems to work fine.

Another thing (as I currently don't have svn write access due to
firewall restrictions):

in Munin.pm there is a missing 'if $DEBUG' statement. I would be happy if
someone could commit this to svn. The log grows BIG time without this.

Index: trunk/server/Munin.pm.in
===================================================================
--- trunk/server/Munin.pm.in    (revision 1818)
+++ trunk/server/Munin.pm.in    (working copy)
@@ -722,7 +722,7 @@
 
     my $result = undef;
 
-    logger ("Debug: munin_set_var_path: Setting var \"$var\" = \"$val\"");
+    logger ("Debug: munin_set_var_path: Setting var \"$var\" = \"$val\"") if $DEBUG;
     if ($var =~ /^\s*([^:]+):(\S+)\s*$/) {
        my ($leftstring, $rightstring) = ($1, $2);

Regards,
Philipp
-- 
Philipp Niemann                                       DIMDI
UNIX-Systembetreuer Peripherie       Waisenhausgasse 36-38a
Tel.: +49 221 4724 281                          50676 Koeln
http://www.dimdi.de                                 Germany

Re: [munin-users] SNMP support in Munin

[Nicolai L. <ja...@li...>]

Philipp Niemann wrote:
> On Wed, 31.12.2008-00:02:50 +0100, Nicolai Langfeldt wrote:
>> I've been working my way towards making munin a MRTG killer (for routers 
>> and switches, it'll take some time yet) - and arrived at the SNMP 
>> "problem" some days ago.
>>
>> Ilmari has made a perl Munin::Plugin::SNMP module for us ages ago, it 
>> has just never been installed as part of the "make install" process. 
> 
> I just installed this new old SNMP module and use it on two nodes. After
> setting the configuration to snmp version 1, everything is running as
> good as is was before the upgrade. Seems to work fine.

:-)

> in Munin.pm there is a missing 'if $DEBUG' statement. I would be happy if
> someone could commit this to svn. The log grows BIG time without this.

Fixed.  Thanks.

Nicolai