[Bug 1356113] Re: PHP5 session clean cron job causes OOM

[Steve Kamerman]

Ok, sorry for the repeated spamming tonight.

One problem with the solution you linked to is that it is extracting the
gx_maxlifetime in seconds, then putting that in find's -cmin which
expects minutes.

I've attached a script that incorporates the improvements of SAPI-
specific session file cleaning, as well as my improved open-file
touching code.

Here's the difference in time on one of my production machines:

# pidof php5-fpm | xargs php -r 'echo "$argc running threads\n";'
102 running threads

# time /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime)
real    0m10.631s
user    0m7.876s
sys     0m2.738s


# time /tmp/sessionclean_proposed.sh
real    0m0.341s
user    0m0.126s
sys     0m0.241s


** Attachment added: "sessionclean_propsed.sh"
   https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1356113/+attachment/4178920/+files/sessionclean_propsed.sh

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Title:
  PHP5 session clean cron job causes OOM

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