ERROR - GD, PNG, and/or JPEG libraries could not be located

Running through a new Nagios 3.2.0 install.  Downloaded all the components I'm going to need on my new VPS.  Installed gcc, php, and a few others I knew I would need.  However when I ran the configure I got the following error:

*** GD, PNG, and/or JPEG libraries could not be located... *********

I forgot to add gd-devel to my install checklist.  That was an easy one.

ERROR: "undefined symbol: art_alloc"

Having a problem getting graphs to generate? I found the following error in my /var/log/httpd/error_log:
[Mon Oct 06 16:54:56 2008] [error] [client 204.9.220.36] /usr/bin/perl: symbol lookup error: /usr/local/rrdtool/lib/librrd.so.2: undefined symbol: art_alloc, referer: http://monitor1.server.com/nagiosgraph/show.cgi?host=pg1&service=WebInject&geom=700x200

I had previously installed several versions libart_lgpl in my intial attempts to get NagiosGraph and RRDTool working. Turns out "art_alloc" is indeed undefined in libart_lgpl 2.3.17, but it is defined in 2.3.19. It may have been the default 2.3.17 rpm that I installed. However downloading and installing 2.3.19 fixed the issue after I sorted out the path issues.  Also you could shortcut and symlink any old files to the new install vs. configuring PATHs which always seem to get messy for me.

Here's how I checked the art_alloc symbol:


[root@monitor1 lib]# nm -D /usr/local/lib/libart_lgpl_2.so.2.3.19 |grep art_alloc
000033d0 T art_alloc
[root@monitor1 lib]# nm -D /usr/lib/libart_lgpl_2.so.2.3.17 |grep art_alloc
[root@monitor1 lib]#

ERROR: libart-2.0 - Missing libart when installing RRDtool

configure: WARNING:
----------------------------------------------------------------------------
* I found a copy of pkgconfig, but there is no libart-2.0.pc file around.
  You may want to set the PKG_CONFIG_PATH variable to point to its
  location.
----------------------------------------------------------------------------

The issue is the RRDtool configure script is looking in /usr/include vs. /usr/local/include for the libart files.  So there are a few ways to tweak this.

1. You can symlink the files from where it is looking to where they are.  Can be very messy to get working, but you may unwittingly solve future issues where these files are needed.
2. You could change where you install libart to not use /usr/local

3. You can set the correct environment variable:
   export CPPFLAGS=' -I/usr/local/include/libart-2.0'

That solved my RRDTool installation issue.

Error - NSClient Counter Errors

***** Nagios *****

Notification Type: PROBLEM

Service: CPU Load
Host: BALLYs DBA-1
Address: ballys.hubteam.local
State: UNKNOWN

Date/Time: Mon Dec 28 12:53:20 CST 2009
Duration: 0d 0h 2m 1s
Additional Info:
NSClient - ERROR: Could not get data for 5 perhaps we dont collect data this far back?

-------------------------------------------------
------------------------------------------------- 
***** Nagios *****

Notification Type: PROBLEM

Service: Memory Usage
Host: BALLYs DBA-1
Address: ballys.hubteam.local
State: UNKNOWN

Date/Time: Mon Dec 28 12:52:20 CST 2009
Duration: 0d 0h 1m 31s
Additional Info:
NSClient - ERROR: Failed to get PDH value.

I received several odd errors with the Memory, CPU and Uptime monitors on one of our new servers with NSClient++.  A little quick research led me to the solution below.  Do not forget to restart the NSCLIENT service too after resetting the counters.

lodctr /R

** Make sure the "/R" is an upper case R.