Strange consistent log notices. Where do they come from?

Question

I haven't tried asking on stackexchange before (only the old forums), so please excuse me if I do it in the wrong fashion... I did google this, but couldn't find anything that helped me remove these. I may of course have done something stupid again..

I have some cron-triggered notification messages that keeps appearing on every cron run. They are:

Notice: Constant CIVICRM_USE_MEMCACHE already defined in include_once() (line 314 of /wwwroot/sites/example.org/civicrm.settings.php).

Notice: Constant CIVICRM_MEMCACHE_HOST already defined in include_once() (line 320 of /wwwroot/sites/example.org/civicrm.settings.php).

Notice: Constant CIVICRM_MEMCACHE_PORT already defined in include_once() (line 325 of /wwwroot/sites/example.org/civicrm.settings.php).

Notice: Constant CIVICRM_MEMCACHE_TIMEOUT already defined in include_once() (line 331 of /wwwroot/sites/example.org/civicrm.settings.php).

Notice: Constant CIVICRM_MEMCACHE_PREFIX already defined in include_once() (line 341 of /wwwroot/sites/example.org/civicrm.settings.php).

I'm worried they are more serious than they appear, and they anyway do clog up my log files. What could be the reason for these appearing? I recently did an upgrade to version 4.6.4 (drupal 7.38), but I'm not sure if this was what triggered this.

Appreciate any suggestions!

Answer 1

Since it's coming from include_once I suspect you have two civicrm.settings.php files.

The correct location is sites/<default or example.org>/civicrm.settings.php

If there's a file in sites/civicrm.settings.php, rename or remove it and see if that ends the errors.

--

EDIT: OK, having reformatted your question I can see the file path isn't actually sites//civicrm.settings.php ... StackExchange was hiding your sites directory because of the angle brackets.

SO - either you have two files (eg sites/default/civicrm.settings.php AND sites/example.org/civicrm.settings.php) OR your site somehow include_once's it after it's already included (?).

Let's use grep to look for files which define that constant:

grep -riE '^define.*CIVICRM_MEMCACHE' /path/to/site/root

If that identifies multiple files with this constant defined, then you probably want to eliminate one of those files. If it only locates a single file, then you may need to dig further to identify why that file is being included twice ... especially when the second time, it's being included using include_once :)