Session cleaner takes long and slows host

[Frank]

Hi,
you know there is a cron job related to php which clean sessions, which code is this:

Look for and purge old sessions every 30 minutes

09,39 * * * * root [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null ; -delete

As the comment says, it runs every 30 minutes. The problem is that it is taking a long time, more than the 30 minutes, so another process is launched. And this on an on. So the host get slow. But didn’t happen before so I am wondering if it has something to do with a bug in fog session management.

Can it be possible?

Thanks.

Frank

[Tom Elliott]

I suppose it’s possible, but I haven’t done any major session changes in a LONG time.

[Tom Elliott]

[url]http://serverfault.com/questions/422723/ubuntus-garbage-collection-cron-job-for-php-sessions-takes-25-minutes-to-run-w[/url]

[Frank]

Thanks Tom. I also found that page and I was trying to implement memcache
At the moment is actually fast but sessions expire too soon I don’t know why.
Thanks anyway for your quick response.
Regards,

Frank

[Junkhacker]

this is a known bug in ubuntu’s config. it’s running fuser for each PHP session file easily racking up thousands of processes. edit /etc/cron.d/php5 line [CODE]09,39 * * * * root [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null ; -delete[/CODE] to be [CODE]09,39 * * * * root [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete[/CODE]

[Frank]

Ok, thanks a lot Junkhacker I will change it.