Re: [ceph-users] Ceph osd is all up and in, but every pg is incomplete

2015-03-29 Thread Yueliang
Hi  Kai KH ceph -s report "493 pgs undersized”, I guess you create the pool with default parameter size=3, but you only have two host, so there it not enough host two service the pool. you should add host or set size=2 when create pool or modify crush rule. --  Yueliang Sent with Airmai

Re: [ceph-users] Ceph osd is all up and in, but every pg is incomplete

2015-03-29 Thread Yueliang
I think there no other way. :) --  Yueliang Sent with Airmail On March 30, 2015 at 13:17:55, Kai KH Huang (huangk...@lenovo.com) wrote: Thanks for the quick response, and it seems to work! But what I expect to have is (replica number = 3) on two servers ( 1 host will store 2 copies, and the

Re: [ceph-users] EC pool needs hosts equal to k + m?

2015-06-23 Thread Yueliang
pieces? is it still be calculated  and where it should be hold ? --  Yueliang Sent with Airmail On June 22, 2015 at 17:08:41, Loic Dachary (l...@dachary.org) wrote: Hi Nigel, On 22/06/2015 02:52, Nigel Williams wrote:> I recall a post to the mailing list in the last week(s) where some

Re: [ceph-users] EC pool needs hosts equal to k + m?

2015-06-24 Thread Yueliang
Hi,Nigel I read some PPT document and find that when n (n wrote: > When I use K+M hosts in the EC pool, if M hosts get down, still have K hosts > active, Can I continue write data to the pool ? If your CRUSH map specifies a failure-domain at the host level (so no two chunks share the same

[ceph-users] questions about federated gateways and region

2014-11-26 Thread yueliang
Hi appreciate for any help. 1, metadata sync in two gateways which on different region, when I get a object which the first gateway found it on the other region, it will help to do http-redirect auto. If I do put bucket/object, the bucket on the other region already, does the first gateway hel