May i ask how are your two data centers are connected together ? On Thursday, 20 October 2016, yan cui <ccuiy...@gmail.com> wrote:
> The two data centers are actually cross US. One is in the west, and the > other in the east. > We try to sync rdb images using RDB mirroring. > > 2016-10-20 9:54 GMT-07:00 German Anders <gand...@despegar.com > <javascript:_e(%7B%7D,'cvml','gand...@despegar.com');>>: > >> from curiosity I wanted to ask you what kind of network topology are you >> trying to use across the cluster? In this type of scenario you really need >> an ultra low latency network, how far from each other? >> >> Best, >> >> *German* >> >> 2016-10-18 16:22 GMT-03:00 Sean Redmond <sean.redmo...@gmail.com >> <javascript:_e(%7B%7D,'cvml','sean.redmo...@gmail.com');>>: >> >>> Maybe this would be an option for you: >>> >>> http://docs.ceph.com/docs/jewel/rbd/rbd-mirroring/ >>> >>> >>> On Tue, Oct 18, 2016 at 8:18 PM, yan cui <ccuiy...@gmail.com >>> <javascript:_e(%7B%7D,'cvml','ccuiy...@gmail.com');>> wrote: >>> >>>> Hi Guys, >>>> >>>> Our company has a use case which needs the support of Ceph across >>>> two data centers (one data center is far away from the other). The >>>> experience of using one data center is good. We did some benchmarking on >>>> two data centers, and the performance is bad because of the synchronization >>>> feature in Ceph and large latency between data centers. So, are there >>>> setting ups like data center aware features in Ceph, so that we have good >>>> locality? Usually, we use rbd to create volume and snapshot. But we want >>>> the volume is high available with acceptable performance in case one data >>>> center is down. Our current setting ups does not consider data center >>>> difference. Any ideas? >>>> >>>> >>>> Thanks, Yan >>>> >>>> -- >>>> Think big; Dream impossible; Make it happen. >>>> >>>> _______________________________________________ >>>> ceph-users mailing list >>>> ceph-users@lists.ceph.com >>>> <javascript:_e(%7B%7D,'cvml','ceph-users@lists.ceph.com');> >>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>>> >>>> >>> >>> _______________________________________________ >>> ceph-users mailing list >>> ceph-users@lists.ceph.com >>> <javascript:_e(%7B%7D,'cvml','ceph-users@lists.ceph.com');> >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >>> >> > > > -- > Think big; Dream impossible; Make it happen. >
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