Public bug reported:

Hi,

I'm using Ubuntu 12.04.2 and noticed that the monitoring tool Munin
writes a large amount of warnings into /var/log/munin/munin-graph.log.

[PERL WARNING] Use of uninitialized value $only_fqn in concatenation (.)
or string at /usr/share/perl5/Munin/Master/GraphOld.pm line 1361.

I'm currently using 1.4.6-3ubuntu3.3 of the package munin which contains
this GraphOld.pm file.

I've debugged the file and confirm the missing initialization. I've
compared the file with the 2.0 branch of Munin and backported the
change. (see attached patch)

My logs are now clean. Please apply this patch to the next version of
the package munin.

Thanks a lot and best regards :-)

** Affects: munin (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: precise

** Patch added: "fix for the missing initialization - backported from munin 2.0 
branch"
   
https://bugs.launchpad.net/bugs/1210936/+attachment/3767812/+files/oldGraph.patch

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https://bugs.launchpad.net/bugs/1210936

Title:
  Warnings in munin-graph.log during each graph rendering run

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