Am 07.10.2016 um 17:37 schrieb Gregory Farnum: > On Fri, Oct 7, 2016 at 7:15 AM, Hauke Homburg <hhomburg@xxxxxxxxxxxxxx> wrote: >> Hello, >> >> I have a Ceph Cluster with 5 Server, and 40 OSD. Aktual on this Cluster >> are 85GB Free Space, and the rsync dir has lots of Pictures and a Data >> Volume of 40GB. >> >> The Linux is a Centos 7 and the Last stable Ceph. The Client is a Debian >> 8 with Kernel 4 and the Cluster is with cephfs mounted. >> >> When i sync the Directory i see often the Message rsync mkstemp no space >> left on device (28). At this Point i can touch a File in anotherDiretory >> in the Cluster. In the Diretory i have ~ 630000 Files. Are this too much >> Files? > Yes, in recent releases CephFS limits you to 100k dentries in a single > directory fragment. This *includes* the "stray" directories that files > get moved into when you unlink them, and is intended to prevent issues > with very large folders. It will stop being a problem once we enable > automatic fragmenting (soon, hopefully). > You can change that by changing the "mds bal fragment size max" > config, but you're probably better off by figuring out if you've got > an over-large directory or if you're deleting files faster than the > cluster can keep up. There was a thread about this very recently and > John included some details about tuning if you check the archives. :) > -Greg Hello, Thanks for the answer. I enabled on the Cluster the mds bal frag = true Options. Today i read that i have to enable this option on the Client, too. With a Fuse mount i can do it with the ceph Binary. I use the Kernel Module. How can i do it there? Regards Hauke -- www.w3-creative.de www.westchat.de _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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