Redundant log settings between Drupal and Apache I'm trying to discover how I can reduce the redundant logs (PHP errors, Drupal messages, debug logs, whatever) that are stored in Drupal's database and in Apache's log folders. I'm primarily a designer, certainly not a sysadmin, but I'd like to use whatever logging methods are most efficient, from a performance perspective as well as a disk space perspective.

I'm not sure if it is relevant to this issue, but I am using Drupal 6.

Is there anywhere I can find an ideal configuration for what to log on which of the two systems? If not, how can I find out exactly what is being logged in which locations, and how to turn off one or the other?
There's a good drupal.org page on how to switch from dblog to syslog module: see Syslog: using the operating system's logging facility.  


  "Because the Database logging module writes logs to the database it can
  slow down the website. By using Syslog you can improve the performance
  of the site."


Combine that with a log rotation strategy of some sort.  And then you'll soon be knee-deep in sysadmin-esque territories.  But probably not neck-deep though if you catch my drift.  Lots of good documentation online for log rotation.  Also, I've not done this on D6, only D7, but that page referenced above does have instructions for D6.