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New question #89138 on Graphite:
https://answers.launchpad.net/graphite/+question/89138

I have a bunch of questions, but on the plus side, once we get this stuff going you'll have a Centos guide you can cut and paste on the wiki. :)  I have this setup on a virtual machine so I've blown it away and started fresh a couple times to make sure. 


Here are my steps so far: 

-------------------------------------------
Centos 5.4 Setup

notes:
- There are issues with 0.9.4, so, I don't suggest using it.

Warning: 
- Using external (EPEL) rpm repo for python packages that are not supported by Centos repos. 

Steps: 
(install packages needed for graphite)

yum install bzr python-crypto python-paramiko python-twisted-core python-sqlite2 python-memcached Django pyOpenSSL python-simplejson python-zope-interface

(checkout bzr somewhere handy: )

cd /opt/bzr
bzr checkout lp:graphite

cd graphite
./check-dependencies.py

(The only thing you should see is the whisper module is not installed. If you see more dependencies not met, you are on your own. )

cd whisper
python setup.py install

cd ..
./check-dependencies.py
(make sure whisper install worked)

vi setup.cfg
(change dir to whatever dir you want, i'm using oldschool /usr/local/graphite)

python setup.py install

cd carbon
vi setup.cfg
(change dir to whatever, i'm using /usr/local/graphite/carbon) 

python setup.py install

cd ..
./misc/generate-apache-config.py --install-root=/usr/local/graphite
(BUG?* Warning default on this program is still /usr/local/graphite not /opt/graphite)
(* I might need to change the lib dir as well, cuz this doesn't work atm)

cp graphite-vhost.conf /etc/httpd/conf.d/

cd /usr/local/graphite/webapp/graphite

(* warning: change path below to your install dirs) 

export PYTHONPATH=$PYTHONPATH:/usr/local/graphite/webapp  
cd /usr/local/graphite/webapp/graphite/
python manage.py syncdb

cd /usr/local/graphite

(* This is not a great idea, but we're just getting it up and running)
chown apache:apache storage/ -R

cd /usr/local/graphite/carbon/conf
cp carbon.conf.example carbon.con
cp storage-schemas.conf.example storage-schemas.conf
(edit to your tastes)
(*BUG? carbon.conf LOCAL_DATA_DIR needs to be updated with user supplied install dir maybe a setup.cfg in the ~carbon dir)


-------------------------------------------
Okay, so. here is where I am now. 

1) I can't get carbon-cache to start. 

./carbon-cache.py
Traceback (most recent call last):
  File "./carbon-cache.py", line 47, in ?
    from carbon.conf import settings
ImportError: No module named carbon.conf


-------------------------------------------

2) The generated graphite-vhost.conf seams wrong, here is what mine looks like: 

NameVirtualHost *:80

<VirtualHost *:80>
        ServerName graphite
        DocumentRoot "/usr/local/graphite//webapp"
        <Location "/">
                SetHandler python-program
                PythonPath "['/usr/local/graphite/webapp'] + sys.path"
                PythonHandler django.core.handlers.modpython
                SetEnv DJANGO_SETTINGS_MODULE web.settings
                PythonDebug Off
                PythonAutoReload Off
        </Location>
        <Location "/content/">
                SetHandler None
        </Location>
        <Location "/media/">
                SetHandler None
        </Location>
        Alias /media/ "/usr/lib/python2.4/site-packages/django/contrib/admin/media/"
        ErrorLog /usr/local/graphite/storage/log/webapp-error.log
        CustomLog /usr/local/graphite/storage/log/webapp-access.log common
</VirtualHost>

The error i get: (/usr/local/graphite/storage/logs/webapp-error.log)

[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython: Traceback (most recent call last):
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython:   File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line 299, in HandlerDispatch\n    result = object(req)
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython:   File "/usr/lib/python2.4/site-packages/django/core/handlers/modpython.py", line 228, in handler\n    return ModPythonHandler()(req)
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython:   File "/usr/lib/python2.4/site-packages/django/core/handlers/modpython.py", line 191, in __call__\n    self.load_middleware()
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython:   File "/usr/lib/python2.4/site-packages/django/core/handlers/base.py", line 33, in load_middleware\n    for middleware_path in settings.MIDDLEWARE_CLASSES:
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython:   File "/usr/lib/python2.4/site-packages/django/utils/functional.py", line 269, in __getattr__\n    self._setup()
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython:   File "/usr/lib/python2.4/site-packages/django/conf/__init__.py", line 40, in _setup\n    self._wrapped = Settings(settings_module)
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython:   File "/usr/lib/python2.4/site-packages/django/conf/__init__.py", line 75, in __init__\n    raise ImportError, "Could not import settings '%s' (Is it on sys.path? Does it have syntax errors?): %s" % (self.SETTINGS_MODULE, e)
[Sat Nov 07 17:34:33 2009] [error] [client 192.168.1.65] PythonHandler django.core.handlers.modpython: ImportError: Could not import settings 'web.settings' (Is it on sys.path? Does it have syntax errors?): No module named web.settings

I tried changing the directories around to 
/usr/local/graphite/webapp/graphite
and such, but nothing i tried worked. 

3) The init scripts to start/stop services are missing atm.

-------------------------------------------

Now, the good news, Is that if I run 

./run-graphite-devel-server.py /usr/local/graphite/

(Which btw i didn't know what the heck this was) 

I see that it's running something on port 8080, so I connected, and , it works! 

I see the graphite composer, and it looks pretty good. The Stuff under Tree's is now populated which is the problem I was having with 0.9.4 .. 

I think it's very close to working, and once I get it working I'll clean up my guide a bit, and hopefully it will help someone out. The carbon-relay stuff (which I knew nothing about) seams very cool. I can test this with multiple VMs and look forward to doing so. 

Thanks in advance.




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