Re: [ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-15 Thread Yan, Zheng
On Sat, Mar 14, 2015 at 7:03 AM, Scottix scot...@gmail.com wrote: ... The time variation is caused cache coherence. when client has valid information in its cache, 'stat' operation will be fast. Otherwise the client need to send request to MDS and wait for reply, which will be slow.

Re: [ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-15 Thread Yan, Zheng
On Sat, Mar 14, 2015 at 7:03 AM, Scottix scot...@gmail.com wrote: ... The time variation is caused cache coherence. when client has valid information in its cache, 'stat' operation will be fast. Otherwise the client need to send request to MDS and wait for reply, which will be slow.

Re: [ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-13 Thread Francois Lafont
Hi, Yan, Zheng wrote : http://tracker.ceph.com/issues/11059 It's a bug in ACL code, I have updated http://tracker.ceph.com/issues/11059 Ok, thanks. I have seen and I will answer quickly. ;) I'm still surprised by such times. For instance, It seems to me that, with a mounted nfs share,

Re: [ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-13 Thread Scottix
… The time variation is caused cache coherence. when client has valid information in its cache, 'stat' operation will be fast. Otherwise the client need to send request to MDS and wait for reply, which will be slow. This sounds like the behavior I had with CephFS giving me question marks.

Re: [ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-12 Thread Yan, Zheng
On Sun, Mar 8, 2015 at 9:21 AM, Francois Lafont flafdiv...@free.fr wrote: Hello, Thanks to Jcsp (John Spray I guess) that helps me on IRC. On 06/03/2015 04:04, Francois Lafont wrote: ~# mkdir /cephfs ~# mount -t ceph 10.0.2.150,10.0.2.151,10.0.2.152:/ /cephfs/ -o

Re: [ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-07 Thread Francois Lafont
Hello, Thanks to Jcsp (John Spray I guess) that helps me on IRC. On 06/03/2015 04:04, Francois Lafont wrote: ~# mkdir /cephfs ~# mount -t ceph 10.0.2.150,10.0.2.151,10.0.2.152:/ /cephfs/ -o name=cephfs,secretfile=/etc/ceph/ceph.client.cephfs.secret Then in ceph-testfs, I do:

Re: [ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-05 Thread Francois Lafont
Hi, I'm sorry to revive my post but I can't to solve my problems and I see anything in the log. I have tried with Hammer version and I found the same phenomena. In fact, first, I have tried the same installation (ie the same conf via puppet) of my cluster but in virtualbox environment and I have

[ceph-users] Firefly, cephfs issues: different unix rights depending on the client and ls are slow

2015-03-04 Thread Francois Lafont
Hi, I'm trying cepfs and I have some problems. Here is the context: All the nodes (in cluster and the clients) are Ubuntu 14.04 with a 3.16 kernel (after apt-get install linux-generic-lts-utopic reboot). The cluster: - one server with just one monitor daemon (RAM 2GB) - 2 servers (RAM 24GB)