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mdittmer 7th January 2009 16:36

Nothing Output from Munin
I recently installed munin to see how it runs on Ubuntu. I configured it to only monitor the machine it is running on (localhost.localdomain). It appears that both munin and munin-node are running properly, except no reports are showing up on munin's page. There is a page for localhost.localdomain but it contains no reports. Munin has been running for over a day now, and the generated by Munin message at the bottom suggests that it is updating at regular intervals.

Here is some relevant configuration information


dbdir  /var/lib/munin
htmldir /var/www/munin
logdir  /var/log/munin
rundir  /var/run/munin
tmpldir /etc/munin/templates
graph_strategy cgi
    use_node_name yes


log_level 4
log_file /var/log/munin/munin-node.log
pid_file /var/run/munin/
background 1
setseid 1
user root
group root
setsid yes
ignore_file ~$
ignore_file \.bak$
ignore_file %$
ignore_file \.dpkg-(tmp|new|old|dist)$
ignore_file \.rpm(save|new)$
ignore_file \.pod$
allow ^127\.0\.0\.1$
port 4949

Munin virtual host configuration on Apache 2
EDIT: Fixed mismatch in cgi-bin location; still no success

<VirtualHost *:80>
        ServerAdmin webmaster@localhost
        ServerName munin

        DocumentRoot /var/www/munin
        <Directory />
                Options FollowSymLinks
                AllowOverride None
        <Directory /var/www/>
                Options Indexes FollowSymLinks MultiViews
                AllowOverride None
                Order allow,deny
                allow from all

        ScriptAlias /cgi-bin/ /var/www/munin/cgi-bin/
        <Directory "/var/www/munin/cgi-bin">
                AllowOverride None
                Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
                Order allow,deny
                Allow from all

        ErrorLog /var/log/apache2/error.log

        # Possible values include: debug, info, notice, warn, error, crit,
        # alert, emerg.
        LogLevel notice

        CustomLog /var/log/apache2/access.log combined

        ServerSignature On

As you can see, I'm attempting to configure Munin to use just-in-time reporting via CGI by following these instructions without bothering with fast CGI.

Any suggestions as to why Munin might appear to be doing its job but also appear to be configured to provide 0 reports?

falko 8th January 2009 15:18

What's the output of

ls -la /var/www/munin

Are there any errors in your logs?

mdittmer 8th January 2009 16:24

I don't see any errors. I noticed (after my last post) that cgi-bin/munin-cgi-graph was in /var/lib/cgi-bin (not in /var/www/munin/cgi-bin), so I moved it, chowned it to munin:www-data, and made sure it was executable. Even with restarting munin and/or munin-node this did not solve any problems.


$ ls -la /var/www/munin
total 32
drwxr-xr-x 4 munin munin    4096 2009-01-07 09:55 .
drwxr-xr-x 3 root  root    4096 2009-01-06 14:44 ..
drwxrwxr-x 2 munin www-data 4096 2009-01-07 11:18 cgi-bin
-rw-r--r-- 1 munin munin    2555 2009-01-06 14:15 definitions.html
-rw-r--r-- 1 munin munin    1217 2009-01-08 08:40 index.html
drwxrwxr-x 2 munin www-data 4096 2009-01-06 14:15 localdomain
-rw-r--r-- 1 munin munin    473 2009-01-06 14:15 logo.png
-rw-r--r-- 1 munin munin    3538 2009-01-06 14:15 style.css

I got no output from


$ sudo grep -i error /var/log/munin/*
Viewing the logs manually doesn't seem to suggest anything out of the ordinary either. Any suggestions?

falko 9th January 2009 13:46

What's the output of

ls -la /var/lib/munin/

mdittmer 12th January 2009 15:54


$ ls -la /var/lib/munin
total 28
drwxr-xr-x  3 munin munin 4096 2009-01-12 08:50 .
drwxr-xr-x 65 root  root  4096 2009-01-07 09:52 ..
-rw-r--r--  1 munin munin  254 2009-01-12 08:50 datafile
-rw-r--r--  1 munin munin  14 2009-01-12 08:50 limits
-rw-r--r--  1 munin munin  76 2009-01-06 15:45 munin-graph.stats
-rw-r--r--  1 munin munin  154 2009-01-12 08:50 munin-update.stats
drwxrwxr-x  2 munin munin 4096 2008-08-06 08:47 plugin-state

falko 13th January 2009 15:10

Looks ok as well. Did you disable AppArmor?

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