[TYPO3-english] "DELETE FROM fe_sessions" job causes server to hang(Case 851)

Konstantin typo3-english at lists.netfielders.de
Wed Feb 25 10:51:10 CET 2009

Seems this SQL from gc() function in class.t3lib_userauth.php.

Here deleted old sessions - you can change class variables:

 var $gc_time = 24;   // GarbageCollection. Purge all session data older 
than $gc_time hours.
 var $gc_probability = 1;  // Possibility (in percent) for GarbageCollection 
to be run.

Set gc_time less than 24 and gc_probability set more than 1 (it's mean that 
~one from every 100nd showed page will ask to delete old sessions)

"Søren Madsen" <sma at cs.au.dk> ???????/???????? ? ???????? ?????????: 
news:mailman.45348.1235553056.2904.typo3-english at lists.netfielders.de...
Every morning at 9AM it seems like TYPO3 instructs our database server
to run a clean up job. We se lots of jobs like this one:

> | 455212 | typo3 | ourserver.dk:36821 | typo3s  | Query  | 59 |  Locked | 
> DELETE FROM fe_sessions
>      WHERE
>      ses_id = 'b0ba76d6971a84a4455eeaf4916dd20b'
>      AND ses_nam

The problem is that these jobs locks the server, and makes all of our
sites unresponsive or they throw a database user denied error, and
this takes 5-10 minutes. We can't seem to find the origin of these
jobs - can anyone help ? We obviously don't mind that these clean up
jobs run, but we'd really like to know where they come from, and we'd
really like to change the time they run.

Kind regards,
Søren Madsen

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