Page 1 of 1

zoneminder

Posted: Thu Aug 26, 2010 9:45 pm
by 382527398571
zoneminder

Posted: Thu Aug 26, 2010 9:58 pm
by 382527398571
zoneminder

Posted: Mon Aug 30, 2010 4:16 pm
by 382527398571
zoneminder

Posted: Mon Aug 30, 2010 5:34 pm
by 382527398571
zoneminder

Posted: Tue Aug 31, 2010 12:18 am
by timcraig
There could be a number of causes, two I can think of are:

Possible cause:
Motion Detection Analysis taking too long.
Ways to detect:
Check how busy your CPU is.
Solutions:
-Reducing load on the ZM box in general.
-Increase the ZM audit time interval (AUDIT_CHECK_INTERVAL).
-Reducing the motion detection complexity (Using zones with AlarmedPixels or FilteredPixels instead of blobs).
- Increasing Image buffer size


Possible cause:
MySQL is too busy
Ways to detect:
-Enable the MySQL "Long queries" log. See if there are ZoneMinder queries taking 10+ seconds to minutes long.
Solutions:
-Increase the ZM audit time interval (AUDIT_CHECK_INTERVAL).
-Optimize your MySQL configuration (see the forums for optimization tips, basically allocation alot memory to the various caches).
-Switch the ZM database tables to InnoDB (seems to help make MySQL more responsive and not hang so easily on queries).


If you are not seeing heavy load nor heavy CPU utilization and increasing image buffer size isn't helping, then it might be the MySQL issue.