Re: [ceph-users] Object Storage and POSIX Mix

2015-08-22 Thread Sage Weil
On Fri, 21 Aug 2015, Robert LeBlanc wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Shouldn't this already be possible with HTTP Range requests? I don't > work with RGW or S3 so please ignore me if I'm talking crazy. Yup. sage > - > Robert LeBlanc > PGP Fingerpr

Re: [ceph-users] OSD GHz vs. Cores Question

2015-08-22 Thread Nick Fisk
Another thing that is probably worth considering is the practical side as well. A lot of the Xeon E5 boards tend to have more SAS/SATA ports and onboard 10GB, this can make quite a difference to the overall cost of the solution if you need to buy extra PCI-E cards. Unless I've missed one, I've not

Re: [ceph-users] OSD GHz vs. Cores Question

2015-08-22 Thread Luis Periquito
I've been meaning to write an email with the experience we had at the company I work. For the lack of a more complete one I'll just tell some of the findings. Please note these are my experiences, and are correct for my environment. The clients are running on openstack, and all servers are trusty.

[ceph-users] Slow responding OSDs are not OUTed and cause RBD client IO hangs

2015-08-22 Thread Alex Gorbachev
Hello, this is an issue we have been suffering from and researching along with a good number of other Ceph users, as evidenced by the recent posts. In our specific case, these issues manifest themselves in a RBD -> iSCSI LIO -> ESXi configuration, but the problem is more general. When there is an

Re: [ceph-users] Discuss: New default recovery config settings

2015-08-22 Thread Shinobu
Based on original concept of *osd_max_backfills* which prevents the following: "*situationIf all of these backfills happen simultaneously, it would put excessive load on the osd.*" the value of "osd_max_backfills" could be important in some situation. So we might not be able to say how it's impor

Re: [ceph-users] PCIE-SSD OSD bottom performance issue

2015-08-22 Thread Wang, Warren
Are you running fio against a sparse file, prepopulated file, or a raw device? Warren From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of scott_tan...@yahoo.com Sent: Thursday, August 20, 2015 3:48 AM To: ceph-users Cc: liuxy666 Subject: [ceph-users] PCIE-SSD OSD bottom pe