Description of problem:
This also relates to check-mk-multisite and that might be a better component. I also found several other things I had to fix with check_mk to get multisite working on Centos 6.x I'll file a separate bug on them. 

rrd_path missing from configuration file  


Version-Release number of selected component (if applicable):
check-mk-livestatus-1.2.6p9-1.el6.x86_64
check-mk-1.2.6p9-1.el6.x86_64
check-mk-multisite-1.2.6p9-1.el6.noarch

How reproducible:
Fails out of the box. 

Steps to Reproduce:
1. yum install check-mk check-mk-multisite
2. Configure /etc/httpd/conf.d/{nagios.conf,zzz_check_mk_conf}
3. Start nagios and apache
4. browse to http://server_name/check_mk/

Actual results:
500 Server error
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] mod_python (pid=12210, interpreter='127.0.0.1', phase='PythonHandler', handler='index'): Application error
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] ServerName: '127.0.0.1'
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] DocumentRoot: '/var/www/html'
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] URI: '/check_mk/index.py'
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] Location: None
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] Directory: '/usr/share/check_mk/web/htdocs/'
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] Filename: '/usr/share/check_mk/web/htdocs/index.py'
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] PathInfo: None
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] Traceback (most recent call last):
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/lib64/python2.6/site-packages/mod_python/importer.py", line 1540, in HandlerDispatch\n    default=default_handler, arg=req, silent=hlist.silent)
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/lib64/python2.6/site-packages/mod_python/importer.py", line 1205, in _process_target\n    module = import_module(module_name, path=path)
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/lib64/python2.6/site-packages/mod_python/importer.py", line 299, in import_module\n    log, import_path)
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/lib64/python2.6/site-packages/mod_python/importer.py", line 683, in import_module\n    execfile(file, module.__dict__)
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/share/check_mk/web/htdocs/index.py", line 51, in <module>\n    execfile(pagehandlers_dir + "/" + fn)
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/share/check_mk/web/plugins/pages/shipped.py", line 32, in <module>\n    import prediction
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/lib64/python2.6/site-packages/mod_python/importer.py", line 994, in load_module\n    return _global_modules_cache.import_module(self.__file)
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/lib64/python2.6/site-packages/mod_python/importer.py", line 683, in import_module\n    execfile(file, module.__dict__)
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107]   File "/usr/share/check_mk/web/htdocs/prediction.py", line 38, in <module>\n    rrd_path = defaults.rrd_path
[Fri Nov 13 01:29:28 2015] [error] [client 10.10.100.107] AttributeError: 'module' object has no attribute 'rrd_path'

Expected results:


Additional info:

I believe this is b/c check_mk-multisite can integrate with PNP4Nagios which might can do rrd_tools.

Here's what I did to work around it but I'm not sure if it's the right fix as I'm not using rrd_tool.

Added rrd directory to /var/lib/check_mk
drwxr-xr-x. 2 nagios nagios 4096 Nov 13 01:55 rrd

edited /usr/share/check_mk/web/htdocs/defaults.py
added line:
rrd_path                    = '/var/lib/check_mk/rrd'

This seems to be a really old bug back from 2013 that got fixed in the upstream, not sure why it's happening now.

http://lists.mathias-kettner.de/pipermail/checkmk-commits/2013-February/005561.html