Use of uninitialized value in concatenation (.) or string at /usr/bin/mrtg line 1193,resulting in graphs broken

[mrtg@…]

Hello,

Since an upgrade of the hardware platform, we see these errormessages showing up in the log every 10 or 20 minutes.

- Use of uninitialized value in concatenation (.) or string at /usr/bin/mrtg line 1184.
- Use of uninitialized value in concatenation (.) or string at /usr/bin/mrtg line 1193.

MRTG worked fine for over 2 years on the old system.

The new server is a PentiumD x86_64 architecture (Dell SC830). Current MRTG version: mrtg-2.11.1-3, OS is FC 4.

The old server used to be Pentium4, RH9, mrtg-2.9.17-13

Configuration file has stayed the same.

When looking at /usr/bin/MRTG at these lines, I see:

1183     foreach $peri (qw(d w m y)) {
1184         print HTML <<"TEXT";                                    <<<<<<<<<<<<<<<
1185 <!-- maxin $peri $$maxin{$peri}{$router} -->
1186 <!-- maxout $peri $$maxout{$peri}{$router} -->
1187 TEXT
1188         if ($$rcfg{'options'}{'dorelpercent'}{$router} and defined $$maxpercent{$peri}{$router}) {
1189             print HTML <<"TEXT";
1190 <!-- maxpercent $peri $$maxpercent{$peri}{$router} -->
1191 TEXT
1192         }
1193         print HTML <<"TEXT";                                     <<<<<<<<<<<<<<<
1194 <!-- avin $peri $$avin{$peri}{$router} -->

The problem her is now that the graphs get broken and start rebuilding from scratch every few hours.

Anyone got any advice here please ? Thanks.

[oetiker]

Please use the latest version of mrtg ... Could it be that your disk is full ?

[oetiker]

Milestone milestone1 deleted

[human]

Hello,

I am with mrtg version 2.15.0 and had threshold values set for alerting but from the day it was added it gives the error. There is not problem in graph and threshold alerts are also working fine. Had same errors with 2.17.2.

error:

Use of uninitialized value in concatenation (.) or string at /usr/local/mrtg-2/bin/mrtg line 1885.
Use of uninitialized value in concatenation (.) or string at /usr/local/mrtg-2/bin/mrtg line 1879.
Use of uninitialized value in concatenation (.) or string at /usr/local/mrtg-2/bin/mrtg line 1879.
Use of uninitialized value in substitution (s/) at /usr/local/mrtg-2/bin/mrtg line 1881.
Use of uninitialized value in substitution (s/) at /usr/local/mrtg-2/bin/mrtg line 1882.
Use of uninitialized value in substitution (s/) at /usr/local/mrtg-2/bin/mrtg line 1883.

[oetiker]

the problem has not changed probably, but the symptom ... depending on whether warnings are on, perl will complain about non defined variables ... there will be some more fixes for this in 2.17.4