Postfix monitoring with David Schweikert's Mailgraph?

Instigater · Posted: Thu Dec 29, 2005 2:43 am Post subject:

There is an alternative too

http://forums.cacti.net/viewtopic.php?p=51584#51584

Earl_Mobilee · Joined: 02 Feb 2006 Posts: 1

Hello everybody,

I work with cacti too. bit I can't it at a mailserver.
I can't always use cgi and snmp.

So how can I use postfix+mailgraph?

mailgraph.pl has created the rrd. But I can't they evaluate.

regards torsten

jmeyerdo · Joined: 02 May 2005 Posts: 26 Location: Dortmund, Germany

After running cacti for "standard"-tasks since several weeks I am trying to use this great tool for some more special tasks for a small private project of mine. Unfortunately there are some small problems...

I installed files from "R�benrotze" (page 2 in this thread) and followed his short installation-guide.
mailgraph is running fine - so the files /var/tmp/mail* are changing regularly.

But the graph is still empty/zero.
In debug-mode I can see the following message (for every mail-count: sent, recv, ...):

Giorgio · Joined: 21 Jun 2006 Posts: 21

Hi guys,

Before beginning i want to apologize for my poor english.

I have a big problem with postfix- mailgraph so i hope that you'll help me.

So i follow the "HOW TO" to install mailgraph. Everything works. My cacti's request works too. i don't have any problem in my cacti server but the information that mailgraph gathers aren't good.

I have to manage postfix in a server on production (Trustix 2.2). So i decide, to test it in an environment test.

Cacti is install on a Fedora Core 4 and mailgraph - postfix host on a Fedora Core 4 too

- Fedora Core 4
- cacti 0.8h
- perl 5-8-6
- net-snmp 5-2-1
- rrdtool 1-2-11
- mailgraph ( i suppose version 1-4 according to the mailgraph-init file)

To test mailgraph i edit manually the log file /var/log/maillog i insert some lines with the status "sent" and "bounced".

The problem is that when i collect informations the number of this specific status aren't accurate.

When i look in the file /var/tmp/mailbounced (etc) i notice the number increase and after decrease just 1 seconde after etc.. and the numbers aren't good.

I have no problem when i start mailgraph by /etc/ini.d/mailgraph start:

[root@test bin]# /etc/init.d/mailgraph start
Starting mail statistics grapher: mailgraph

but when i try to launch mailgraph script by /usr/bin/mailgraph i have 1 error.

[root@test bin]# mailgraph
Error opening /var/log/syslog: Aucun fichier ou r�pertoire de ce type at /usr/bin/mailgraph line 299

I don't have this file.

Any idea?

scubabri · Joined: 13 Jul 2006 Posts: 32

I want to be able to split up rejected and sent/recieved into two seperate graphs.

I create the graphs and then deselect the graph item fields for the stuff I don't want.

The graphs are never generated, anyone else having this problem, or am I doing something wrong.

I'd like them seperate because we reject about 2000 mails per interval

sb

jpingle · Joined: 09 May 2005 Posts: 37

It's probably not getting any data because the numbers reset once they are read. There are a couple solutions, though:

Option 1: Clone the graph template and make one without the rejected values, and one with only the rejected values.
Create the first graph as normal with the 'non-rejected' graph template, and then when it comes time to add the second graph, don't add it as usual - Add it from the 'graph management' screen by clicking Add, and then select the data source created by the first graph, and the rejected-only template. This should make sure the data is only gathered once, and they all pull from the same data source.

Option 2 (What I do): Switch the graph type to use Logarithmic Auto Scaling, that way the high values for rejected don't have as much impact, and it's still easy to read once you get used to how the graph values are represented on the graph -- 1-10, 11-100, 101-1000, 1001-10000 etc.

scubabri · Joined: 13 Jul 2006 Posts: 32

Thanks, option 2 works for me.

sb

mheyboer · Joined: 03 Aug 2006 Posts: 1

I am using jpingle's mailgraph template for Cacti, and it is working great. I would like to add the ability (in addition to average and current) a 'total' - which keeps track of all reject/spam/bounce/viruses received during that 24 hour period. How can this be done? I know its possible as the rrdgraph has the total in and total out values right on the graph. Any suggestions??

kokkers · Joined: 16 Feb 2006 Posts: 16

vchouet · Joined: 12 Dec 2007 Posts: 4

Hy,

Iv'e got the same problem.
Do you have any Idea ?

Thanks a lot.

Vincent

Tolien · Joined: 31 May 2005 Posts: 4

tyson · Joined: 14 Mar 2008 Posts: 4

I understand that this thread is quite old, but it's information still appears very valid...

Unfortunately, I am trying to follow the instructions presented here, however I am unable to get the local snmpd to respond with the correct values from mailgraph.

I can see that the daemon is properly running and returning values to the /var/tmp directory, however when I try to query those values from /var/tmp, I constantly get an error:

WARNING: Result from SNMP not valid. Partial Result: No Such Object avail

When I query the SNMP Trap directly, I get the following...
UCD-SNMP-MIB::extOutput.8 = No more variables left in this MIB View (It is past the end of the MIB tree)

I assume that this is something that I have entered incorrectly into my /etc/snmp/snmp.conf file, however I followed the instructions presented exactly, and they stated to simply add the following line to this file.

exec mailcount /usr/bin/postfixstats.sh

Could someone please assist me to get this system working?
Thank you very much for your assistance.

~Tyson Edwards

Number · Joined: 21 Aug 2008 Posts: 6

I'm really don't understand, i have all my graph working (process,mem,ping,...)

I have add without problem ws_apache_stats and they work..

But when i try to add a graph for postfix, i always have the same error :

rsuinux · Joined: 06 Oct 2008 Posts: 7 Location: Limoges

hello all
(sorry for my very poor english)
I use mailgraph, and i modified the initscript mailgrph for use in my debian stable

http://linuxette.suinot.org/tmp/mailgraph

And, in the parameter for mailgraph, the log file is not
/var/log/maillog
but
/var/log/mail.log

fitzb0z0 · Joined: 14 Oct 2008 Posts: 1

Hi All,

I am using the modified mailgraph.pl that updates files in /var/tmp instead of updated the rrd files.

I start mailgraph with the init script and it updates the files as expected.

[someuser@somebox /var/tmp] /usr/local/bin/postfixstats.sh
sent:400 received:334 bounced:21 rejected:299 spam:138 virus:0

Then cacti comes long and runs postfixstats.sh via snmpd, which works fine and zeros out the files in /var/tmp.

The problem is the files are never updated again by mailgraph.pl even though the daemon continues to run.

Anyone else experience this behavior?

Thanks,
Sean