High loads on Apache (probably) due to Perl errors in the logfile

raymond.teunissen · December 17, 2015, 4:31pm

Hi,

I am running RT 4.2.12 on a RHEL system. RT was installed a couple of weeks ago, and since a couple of days i noticed the loads on Apache were very high. When i check the errorlogs of apache, it shows me a lot of Perl errors. I pasted some snippets below. I searched in the wiki and on the internet, but there isn’t anything helpful i have been able to find. The fact that i can’t read Perl isn’t really helping as well Can somebody give me a clue where to look for in this case? It tells me some values haven’t been initialized, but I can’t seem to find out what those values are for, and why they aren’t being initialized.

[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)
[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)
[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)
[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)

[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $_ in concatenation (.) or string at /usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214. (/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)
[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $_ in concatenation (.) or string at /usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214. (/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)
[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $_ in concatenation (.) or string at /usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214. (/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)
[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $_ in concatenation (.) or string at /usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214. (/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $ptag in string eq at /usr/local/share/perl5/HTML/Element.pm line 711. (/usr/local/share/perl5/HTML/Element.pm:711)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $ptag in string eq at /usr/local/share/perl5/HTML/Element.pm line 711. (/usr/local/share/perl5/HTML/Element.pm:711)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $ptag in hash element at /usr/local/share/perl5/HTML/Element.pm line 711. (/usr/local/share/perl5/HTML/Element.pm:711)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $ptag in string eq at /usr/local/share/perl5/HTML/Element.pm line 711. (/usr/local/share/perl5/HTML/Element.pm:711)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $ptag in string eq at /usr/local/share/perl5/HTML/Element.pm line 711. (/usr/local/share/perl5/HTML/Element.pm:711)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $ptag in hash element at /usr/local/share/perl5/HTML/Element.pm line 711. (/usr/local/share/perl5/HTML/Element.pm:711)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value in string eq at /usr/local/share/perl5/HTML/Element.pm line 2218. (/usr/local/share/perl5/HTML/Element.pm:2218)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value in string eq at /usr/local/share/perl5/HTML/Element.pm line 2218. (/usr/local/share/perl5/HTML/Element.pm:2218)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value in string eq at /usr/local/share/perl5/HTML/Element.pm line 2218. (/usr/local/share/perl5/HTML/Element.pm:2218)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value in string eq at /usr/local/share/perl5/HTML/Element.pm line 2218. (/usr/local/share/perl5/HTML/Element.pm:2218)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in string eq at /usr/local/share/perl5/HTML/Element.pm line 2632. (/usr/local/share/perl5/HTML/Element.pm:2632)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in string eq at /usr/local/share/perl5/HTML/Element.pm line 2656. (/usr/local/share/perl5/HTML/Element.pm:2632)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in string eq at /usr/local/share/perl5/HTML/Element.pm line 2656. (/usr/local/share/perl5/HTML/Element.pm:2632)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in string eq at /usr/local/share/perl5/HTML/Element.pm line 2656. (/usr/local/share/perl5/HTML/Element.pm:2632)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $tag in concatenation (.) or string at /usr/local/share/perl5/HTML/Formatter.pm line 150. (/usr/local/share/perl5/HTML/Formatter.pm:150)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $_ in concatenation (.) or string at /usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214. (/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $_ in concatenation (.) or string at /usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214. (/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)
[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $_ in concatenation (.) or string at /usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214. (/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)

Thank you!

Raymond

Marcelo_Calado_TBS_T · December 17, 2015, 5:34pm

Hi there!

I have been having the same error after I installed the RT-Extensions
(ActivityReports and CommandByMail). When I disable this extensions on
RT_SiteConfig.pm, this erros has stoped.

I’m still looking for to solve this issue.

ActivityReports/html/Callbacks/ActivityReports/Elements/Tabs/Privileged line
63.

Dec 17 10:15:04 751081-tbsfryou RT: [11610] Use of uninitialized value in
concatenation (.) or string at
/opt/rt4/local/plugins/RT-Extension-CommandByMail/lib/RT/Interface/Email/Fil
ter/TakeAction.pm line 279.

Dec 17 10:16:06 751081-tbsfryou RT: [11609] Use of uninitialized value in
concatenation (.) or string at
/opt/rt4/local/plugins/RT-Extension-CommandByMail/lib/RT/Interface/Email/Fil
ter/TakeAction.pm line 279.

Marcelo Calado.

Of raymond.teunissen@kpn.comSent: Thursday, December 17, 2015 11:31 AM
To: rt-users@lists.bestpractical.com
Subject: [rt-users] High loads on Apache (probably) due to Perl errors in
the logfile

Hi,

I am running RT 4.2.12 on a RHEL system. RT was installed a couple of weeks
ago, and since a couple of days i noticed the loads on Apache were very
high. When i check the errorlogs of apache, it shows me a lot of Perl
errors. I pasted some snippets below. I searched in the wiki and on the
internet, but there isn’t anything helpful i have been able to find. The
fact that i can’t read Perl isn’t really helping as well Can somebody
give me a clue where to look for in this case? It tells me some values
haven’t been initialized, but I can’t seem to find out what those values are
for, and why they aren’t being initialized.

[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value
$tag in concatenation (.) or string at
/usr/local/share/perl5/HTML/Formatter.pm line 150.
(/usr/local/share/perl5/HTML/Formatter.pm:150)

[12010] [Thu Dec 17 15:16:41 2015] [warning]: Use of uninitialized value $_
in concatenation (.) or string at
/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214.
(/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value
$ptag in string eq at /usr/local/share/perl5/HTML/Element.pm line 711.
(/usr/local/share/perl5/HTML/Element.pm:711)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value
$ptag in hash element at /usr/local/share/perl5/HTML/Element.pm line 711.
(/usr/local/share/perl5/HTML/Element.pm:711)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value
$ptag in string eq at /usr/local/share/perl5/HTML/Element.pm line 711.
(/usr/local/share/perl5/HTML/Element.pm:711)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value
$ptag in hash element at /usr/local/share/perl5/HTML/Element.pm line 711.
(/usr/local/share/perl5/HTML/Element.pm:711)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value in
string eq at /usr/local/share/perl5/HTML/Element.pm line 2218.
(/usr/local/share/perl5/HTML/Element.pm:2218)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value
$tag in string eq at /usr/local/share/perl5/HTML/Element.pm line 2632.
(/usr/local/share/perl5/HTML/Element.pm:2632)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value
$tag in string eq at /usr/local/share/perl5/HTML/Element.pm line 2656.
(/usr/local/share/perl5/HTML/Element.pm:2632)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value
$tag in concatenation (.) or string at
/usr/local/share/perl5/HTML/Formatter.pm line 150.
(/usr/local/share/perl5/HTML/Formatter.pm:150)

[12010] [Thu Dec 17 15:16:42 2015] [warning]: Use of uninitialized value $_
in concatenation (.) or string at
/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm line 214.
(/usr/local/share/perl5/HTML/FormatText/WithLinks/AndTables.pm:214)

Thank you!

Raymond

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