sory about my english ,
i have found this error in my php error log
1-Cannot read session record
2-Can not obtain session lock
and it's repeated a lot of time i have moodle 2.4.10
and php 5.3.3 ,mysql 5.1.6 , apache 2.2.15
i have large moodle website
is there any solution for these errors
thanx in advance
Hi,
Providing actual full error messages and the numbers of users and pages views in a 5 minute period will help to provide further information.
The basic guess is that you have a page that is loading, and another page is waiting for that session lock to be released before it can load the second page or ajax request. If that waits too long, then you will recieve those messages in the log. Have you considered using a different session solution, or upgrading to 2.7 which include new session management code?
Regards
Russell
I would not recommend db sessions for a large site, you should investigate file sessions for single server installs or memcache if you are running a cluster.
I still think it's something having to wait due to a slow load time. Does your webserver report how long requests are taking and are there any groups approaching 2 minutes?
Debugging this kind of issue will require a lot of data collection and analysis. I will only be able to guess the root cause without a lot of corelated data. I suggest moving session stores and then seeing if there is still an issue.
