Hi Matthias, If I understand correctly, for you all the operations are fine, but when a "cp" is being done and simultaneously you do "ls" from another client, the "ls" is slow? Krishna On 8/31/07, Matthias Albert <gluster@xxxxxxxxxxxxxxxx> wrote: > Hi all, > > first of all, I've to say that gluterfs is really cool and absolutly > great. I'm not a cluster filesystem specialist but I tested/configured > openafs and lustre and both of them are so huge and complicated. > As I saw glusterfs and played a little bit with it, I was really > surprised how easy it is to setup a cluster filesystem without extra > acl's, without formatting the new filesystem without a > metadata/objectserver :-). Thanks a lot for this. > > Of course I've some questions :-). > > I've setup 4 glusterfsd server, each of them with a storage of about > 400-500 Gig pre-tax. > On client side I made different afr's over my remote volumes and > finally a unify over the afr's. Readahead and writebehind is also enabled. > > Everything is working fine. I can copy "tons" of Gigabytes in my > glusterfs without any problms and also my performance is absolutly great. > > But every time I start a "cp" or do a "dd test (to write some testfiles > in the gluster storage) on some of my clients (I've 3 glusterfs clients > one of them is a bacula server which uses the glusterfs as storage) > all access from my glusterfs clients to the mounted share is really > slow. It takes sometimes about 3-4 seconds till my ls is printing the > output of the directory. > > e.g. > ---snip--- > bash# df -h > glusterfs 892G 84G 809G 10% /backup > > gsx:/backup/vmware-images # time ll > ... > ... > real 0m2.863s > user 0m0.004s > sys 0m0.005s > gsx:/backup/vmware-images # > ---snap--- > > Also the "tab completion" in the mounted glusterfs share is really slow. > Access of not mounted glusterfs share is just normal (accessing /etc > /usr/ /root etc. ) > > Does anyone know these "phenomenon"? > > I'm using Debian as distro for all of my servers and Debian and SuSE on > Client side. > > glusterfs version: glusterfs--mainline--2.5 patch-459 > fuse: fuse-2.7.0-glfs3 > > If needed I can post my configs, strace outputs of ls -la and so on. > > Regards, > > Matthias > > > > > > > > > > > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel >
