[ Adding list back. ] I don't know php; I'm not sure what it means for "count" to drop to zero in your script. What erroneous behavior do you believe the filesystem is displaying? -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com On Thu, Nov 14, 2013 at 12:04 AM, M. Piscaer <debian@xxxxxxxxxxx> wrote: > Greg, > > What do you mean, > > What info do you need? > > Kind regards, > > Michiel Piscaer > > > On wo, 2013-11-13 at 16:19 -0800, Gregory Farnum wrote: >> I'm not too familiar with the toolchain you're using, so can you >> clarify what problem you're seeing with CephFS here? >> -Greg >> Software Engineer #42 @ http://inktank.com | http://ceph.com >> >> >> On Wed, Nov 13, 2013 at 12:06 PM, M. Piscaer <debian@xxxxxxxxxxx> wrote: >> > >> > Hi, >> > >> > I have an webcluster setup, where on the loadbalancers the persistence >> > timeout is 0. To share the sessions I use ceph version 0.56.7, like you >> > see on the diagram. >> > >> > +----------------+ >> > | Internet | >> > +----------------+ >> > | >> > +-----+-----------------------+ >> > | | >> > +-----------------+ +-----------------+ >> > | loadbalancer-01 | | loadbalancer-02 | >> > +-----------------+ +-----------------+ >> > | | >> > +-----+--192.168.1.0/24-------+ >> > | >> > +--------+ | +--------+ >> > | web-01 |---+-----| web-02 | >> > +--------+ | +--------+ >> > | >> > +--------+ | +--------+ >> > | osd-01 |---+-----| osd-02 | >> > +--------+ | +--------+ >> > | >> > +--------+ | +--------+ >> > | mds-01 |---+-----| mds-02 | >> > +--------+ | +--------+ >> > | >> > +--------+--------+-------------------+ >> > | | | >> > +--------+ +--------+ +--------+ >> > | mon-01 | | mon-02 | | mon-03 | >> > +--------+ +--------+ +--------+ >> > >> > I mount on the web nodes the ceph mds tables: >> > ** /etc/fstab ** >> > mon-01:/ < Session_mountpoint> ceph >> > defaults,name=admin,secret=<secret_key> 0 0 >> > >> > My probem is that when the sessions gets a frequent update, I sometimes >> > loss my session data. >> > >> > I can reproduse my problem with the following PHP script: >> > >> > <?php >> > // page2.php >> > >> > session_save_path('/var/www/storage/sessions/'); >> > session_start(); >> > >> > $_SESSION['count']++; >> > echo 'count: '; >> > echo $_SESSION['count']; >> > >> > ?> >> > >> > When i run the following commands: >> > >> > michielp@michielp-hp:~$ wget --no-check-certificate >> > --keep-session-cookies --save-cookies /tmp/cookies.txt >> > https://sub.domain.nl/page2.php -O - >> > michielp@michielp-hp:~$ for foo in {1..10000}; do wget >> > --no-check-certificate --load-cookies /tmp/cookies.txt >> > "https://sub.domain.nl/page2.php"; -O - -o /dev/null; sleep 0.3; done >> > >> > At 10, 100 and 1000 and further the couter hits to 0. When i use sleep >> > 0.4 everthing works fine. >> > >> > michielp@michielp-hp:~$ for foo in {1..10000}; do wget >> > --no-check-certificate --load-cookies /tmp/cookies.txt >> > "https://sub.domain.nl/page2.php"; -O - -o /dev/null; done >> > >> > count: 1 >> > count: 2 >> > count: 3 >> > count: 4 >> > count: 5 >> > count: 6 >> > count: 7 >> > count: 8 >> > count: 9 >> > count: 10 >> > count: 1 >> > count: 2 >> > count: 1 >> > >> > Also when is switch off one of the webservers the problem disappears. >> > >> > On mds-01 is see the folllowing message: >> > root@isp-oscaccstormds-01:/var/log/ceph# tail ceph-mds.5.log >> > 2013-11-13 20:49:00.428592 7f20fca22700 0 mds.0.server >> > handle_client_file_setlock: start: 0, length: 0, client: 18900, pid: >> > 10032, type: 4 >> > >> > The config of the ceph cluster looks like: >> > >> > [global] >> > auth cluster required = cephx >> > auth service required = cephx >> > auth client required = cephx >> > keyring = /etc/ceph/keyring >> > cluster network = 192.168.1.0/24 >> > public network = 192.168.1.0/24 >> > >> > fsid = 82ecbd50-81ff-4f6c-a009-0bd02a1b4043 >> > >> > [mon] >> > mon data = /var/lib/ceph/mon/mon.$id >> > >> > [osd] >> > osd journal size = 4096 >> > filestore flusher = false >> > osd data = /var/lib/ceph/osd/osd.$id >> > osd journal = /var/lib/ceph/osd/osd.$id/journal >> > osd mkfs type = xfs >> > keyring = /var/lib/ceph/osd/osd.$id/keyring >> > >> > [mds] >> > mds data = /var/lib/ceph/mds/mds.$id >> > keyring = /var/lib/ceph/mds/mds.$id/keyring >> > >> > [mon.0] >> > host = mon-01 >> > mon addr = 192.168.1.56:6789 >> > >> > [mon.1] >> > host = mon-02 >> > mon addr = 192.168.1.57:6789 >> > >> > [mon.2] >> > host = mon-03 >> > mon addr = 192.168.1.58:6789 >> > >> > [mds.5] >> > host = mds-01 >> > >> > [mds.6] >> > host = mds-02 >> > >> > [osd.0] >> > host = osd-02 >> > devs = /dev/sdb1 >> > cluster addr = 192.168.1.60 >> > public addr = 192.168.1.60 >> > >> > [osd.1] >> > host = osd-01 >> > devs = /dev/sdb1 >> > cluster addr = 192.168.1.59 >> > public addr = 192.168.1.59 >> > >> > >> > Kinds regards, >> > >> > Michiel Piscaer >> > >> > >> > _______________________________________________ >> > ceph-users mailing list >> > ceph-users@xxxxxxxxxxxxxx >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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