fuser processes from Apache(?)

Thomas Olsen thomas at tanghus.net
Mon Nov 14 19:04:24 UTC 2011


On Monday 14 November 2011 20:42 Waleed Hamra wrote:
> On 11/14/2011 12:17 PM, Thomas Olsen wrote:
> > Hi
> > 
> > Yesterday I installed Apache with php5. Since then I have several times
> > experienced my system being unusable because of a lot of 'fuser'
> > processes:
> > 
> > 2559 ?        Ss     0:00 /bin/sh -c   [ -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
> > 
> >   2564 ?        S      0:00 find /var/lib/php5/ -depth -mindepth 1
> >   -maxdepth 1 -> 
> > type f -cmin +24 ! -execdir fuser -s {} ; -delete
> > 
> >   3967 ?        R      0:03 fuser -s ./sess_2ehce2ict2u8bovo40ifp1nb81
> >   3968 ?        Z      0:00 [fuser]<defunct>
> >   3969 ?        Z      0:00 [fuser]<defunct>
> >   3970 ?        Z      0:00 [fuser]<defunct>
> >   3971 ?        Z      0:00 [fuser]<defunct>
> > 
> > Doing a count gives:
> > 
> > ps ax|grep fuser|wc -l
> > 17485
> > 
> > Any ideas on what's causing this?
> 
> yeah, a nasty bug introduced in 11.10.
> a cron job that is supposed to clean php sessions calls fuser for every
> php file apparently.
> 
> this forum page has some suggested solutions:
> http://ubuntuforums.org/archive/index.php/t-1862472.html
> 
> and this is the actual bug report if you want to join it:
> https://bugs.launchpad.net/ubuntu/+source/php5/+bug/877894

Thanks for the links. I purged php5 earlier today and just installed 
libapache2-mod-php5. For some reason I haven't seen the problem since.

-- 
Med venlig hilsen / Best Regards

Thomas Olsen



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