fcgid server error centos

[Tim Dunphy]

hello,

 I got a little tired of exfoliation on my nagios server so I decided to give thruk a try. I understand it's a complete cgi replacement for nagios and has some nice capabilities so I'm looking forward to getting this working.

I'm running a centos 5.6 x86_64 server and nagios core 3.4.1. I used the thruk-1.52-1.el6.x86_64 rpm installed by yum localinstall --nogpgcheck. Everything seemed to go ok.


However, when I navigate to /thruk page I see an Internal Server Error. And when I have a look at the apache error_logs I see the following error:


[root@cloud:~] #tail /var/log/httpd/error_log
[Mon Dec 31 14:16:49 2012] [error] [client 69.115.183.35] Premature end of script headers: fcgid_env.sh
/usr/bin/perl: symbol lookup error: /usr/lib/thruk/perl5/x86_64-linux-thread-multi/auto/List/Util/Util.so: undefined symbol: Perl_Istack_sp_ptr
[Mon Dec 31 14:16:50 2012] [warn] (104)Connection reset by peer: mod_fcgid: read data from fastcgi server error.
[Mon Dec 31 14:16:50 2012] [error] [client 69.115.183.35] Premature end of script headers: fcgid_env.sh
[Mon Dec 31 14:16:53 2012] [notice] mod_fcgid: process /usr/share/thruk/fcgid_env.sh(29967) exit(communication error), terminated by calling exit(), return code: 127
[Mon Dec 31 14:16:53 2012] [notice] mod_fcgid: process /usr/share/thruk/fcgid_env.sh(29956) exit(communication error), terminated by calling exit(), return code: 127
/usr/bin/perl: symbol lookup error: /usr/lib/thruk/perl5/x86_64-linux-thread-multi/auto/List/Util/Util.so: undefined symbol: Perl_Istack_sp_ptr
[Mon Dec 31 15:01:01 2012] [warn] (104)Connection reset by peer: mod_fcgid: read data from fastcgi server error.
[Mon Dec 31 15:01:01 2012] [error] [client 69.115.183.35] Premature end of script headers: fcgid_env.sh
[Mon Dec 31 15:01:04 2012] [notice] mod_fcgid: process /usr/share/thruk/fcgid_env.sh(31302) exit(communication error), terminated by calling exit(), return code: 127


So I googled the "Perl_Istack_sp_ptr" error and found that some have corrected this by installing the Util::Params CPAN plugin. Which I did, however that does not seem to have resolved the issue.

It's a default apache config that was deposited by the rpm

[root@cloud:~] #cat /etc/httpd/conf.d/thruk.conf
<IfModule mod_fcgid.c>
  AddHandler fcgid-script .sh
  IPCCommTimeout 120

  <Directory /usr/share/thruk>
    Options FollowSymLinks
    AllowOverride All
    order allow,deny
    allow from all
  </Directory>
  <Directory /etc/thruk/themes>
    Options FollowSymLinks
    allow from all
  </Directory>
  <Directory /etc/thruk/plugins>
    Options FollowSymLinks
    allow from all
  </Directory>

  # redirect to a startup page when there is no pidfile yet
  RewriteEngine On
  RewriteCond %{REQUEST_METHOD} GET
  RewriteCond %{REQUEST_URI} !^/thruk/startup.html
  RewriteCond %{REQUEST_URI} !^/thruk/side.html
  RewriteCond %{REQUEST_URI} !^/thruk/.*\.(css|png|js)
  RewriteCond %{REQUEST_URI} ^/thruk
  RewriteCond /var/cache/thruk/thruk.pid !-f
  RewriteRule ^(.*)$ /thruk/startup.html?$1 [R=302,L,NE,QSA]

  Alias /thruk/documentation.html /usr/share/thruk/root/thruk/documentation.html
  Alias /thruk/startup.html /usr/share/thruk/root/thruk/startup.html
  AliasMatch ^/thruk/(.*\.cgi|.*\.html)  /usr/share/thruk/fcgid_env.sh/thruk/$1
  AliasMatch ^/thruk/plugins/(.*?)/(.*)$  /etc/thruk/plugins/plugins-enabled/$1/root/$2
  Alias /thruk/themes/  /etc/thruk/themes/themes-enabled/
  Alias /thruk /usr/share/thruk/root/thruk

  <Location /thruk>
    Options ExecCGI
    AuthName "Thruk Monitoring"
    AuthType Basic
    AuthUserFile /etc/thruk/htpasswd
    Require valid-user
  </Location>
  <Location /thruk/cgi-bin/remote.cgi>
    Order Deny,Allow
    Allow from all
    Satisfy any
  </Location>
</IfModule>


I do have the mod_fcgi module installed:

mod_fcgid-2.2-11.el5.x86_64

And it's enabled in apache.

[root@cloud:~] #httpd -t -D DUMP_MODULES | grep fcgid
Syntax OK
 fcgid_module (shared)

I'd appreciate any advice you might have that would get this working.

Thanks
Tim

[Sven Nierlein]

perl symbol errors are almost everytime caused by mismatching perl versions or mismatching package version.
In your case, you installed the centos 6 package on centos 5 which cannot work. So just take the latest
centos 5 release: http://www.thruk.org/files/pkg/v1.60-2/rhel5/

[Tim Dunphy]

Whoops! Missed that obvious point. Thanks for providing the link to the rpm's.  Still some config work to do but I think I'll leave that for 2013. Thanks again and have a happy new year all!

--
GPG me!!

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