Ubuntu
munin package

Wrong STACK check with custom colors

Bug #483897 reported by Jürgen Kreileder
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
munin (Ubuntu)
Confirmed
Low
Unassigned

Bug Description

Binary package hint: munin

When building a STACK with fields that specify a custom color munin-graph erroneously gives this (non-fatal) error:

"ERROR: First field (\"$field\") of graph \"$domain\" :: \"$name\" :: \"$service\" is STACK. STACK can only be drawn after a LINEx or AREA."

The problem is that $field_count doesn't get incremented when a field specifies a custom color.
An example that shows the problem is http://muninexchange.projects.linpro.no/?search=&cid=0&pid=274

Revision history for this message
Chuck Short (zulcss) wrote :

Hi,

Which version of munin are you using?

Thanks
chuck

Changed in munin (Ubuntu):
importance: Undecided → Low
status: New → Incomplete
Revision history for this message
Jürgen Kreileder (jk) wrote :

1.2.6-13ubuntu3 on karmic.

Revision history for this message
Chuck Short (zulcss) wrote :

Thanks

Changed in munin (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Chuck Short (zulcss) wrote :

How can I reproduce this?

Regards
chuck

Revision history for this message
Jürgen Kreileder (jk) wrote :

Here's a simple test plug-in. It just builds a stack from 3 constant values. With the attached version, you'll get errors in /var/log/munin/munin-graph.log:

[...] ERROR: First field ("f2") of graph [...] "b483897" is STACK. STACK can only be drawn after a LINEx or AREA.
[...] ERROR: First field ("f3") of graph [...] "b483897" is STACK. STACK can only be drawn after a LINEx or AREA.

If you remove the 3 colour lines from the script (i.e., if you let munin choose the colors itself) the errors go away.
As said in the original report, the logic behind the STACK–LINEx/AREA test is broken if fields have custom colors.

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