Hi Mohammed, thank you very much for your answer. The volfile was generated in 3.1.x - we only upgraded server and client but did not generate new volfiles. I now generated a new volfile and it looks like this: volume macm03-posix type storage/posix option directory /glusterstorage/macm03 end-volume volume macm03-access-control type features/access-control subvolumes macm03-posix end-volume volume macm03-locks type features/locks subvolumes macm03-access-control end-volume volume macm03-io-threads type performance/io-threads subvolumes macm03-locks end-volume volume macm03-marker type features/marker option volume-uuid d6af5997-f242-4077-a366-edf2d6e9ba0a option timestamp-file /etc/glusterd/vols/macm03/marker.tstamp option xtime off option quota off subvolumes macm03-io-threads end-volume volume /glusterstorage/macm03 type debug/io-stats option latency-measurement off option count-fop-hits off subvolumes macm03-marker end-volume volume macm03-server type protocol/server option transport-type tcp option auth.addr./glusterstorage/macm03.allow * subvolumes /glusterstorage/macm03 end-volume as far as I see there is now a "new" volume "marker". I will test again. thank you very much! christopher Am 02.05.2011 19:42, schrieb Mohammed Junaid Ahmed: > Hi Christopher, > > I see that that the server side volfile has a translator missing. How did you generate the volfile? > > ----- Original Message ----- >> From: "Christopher Anderlik"<christopher.anderlik at xidras.com> >> To: gluster-users at gluster.org >> Sent: Monday, May 2, 2011 7:09:47 PM >> Subject: Re: strange behavior with glusterfs 3.2.0 >> hello again. >> >> I realized that all these problems occurs if there is a 0-size-file on >> one of the 2 gfs-server >> (replicated). >> >> so, when or how do these 0-size-files occur? >> >> only a webserver (apache) access these files. I can't believe, that >> the webserver is the reason for >> these 0-size-files. >> >> thx >> christopher >>