Re: [openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-18 Thread Vishvananda Ishaya
On Sep 18, 2013, at 4:50 PM, Josh Durgin wrote: > On 09/18/2013 07:14 AM, Thierry Carrez wrote: >> Mike Perez wrote: >>> Currently in Havana development, RBD as ephemeral storage has serious >>> stability >>> and performance issues that makes the Ceph cluster a bottleneck for using an >>> image

Re: [openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-18 Thread Josh Durgin
On 09/18/2013 07:14 AM, Thierry Carrez wrote: Mike Perez wrote: Currently in Havana development, RBD as ephemeral storage has serious stability and performance issues that makes the Ceph cluster a bottleneck for using an image as a source. [...] This comes up a bit late, and the current RC bug

Re: [openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-18 Thread Josh Durgin
On 09/17/2013 07:33 PM, Zhi Yan Liu wrote: On Wed, Sep 18, 2013 at 6:16 AM, Mike Perez wrote: Folks, Currently in Havana development, RBD as ephemeral storage has serious stability and performance issues that makes the Ceph cluster a bottleneck for using an image as a source. Nova has to curr

Re: [openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-18 Thread Russell Bryant
On 09/18/2013 10:34 AM, John Griffith wrote: > > > > On Wed, Sep 18, 2013 at 8:14 AM, Thierry Carrez > wrote: > > Mike Perez wrote: > > Currently in Havana development, RBD as ephemeral storage has serious > > stability > > and performance issues t

Re: [openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-18 Thread John Griffith
On Wed, Sep 18, 2013 at 8:14 AM, Thierry Carrez wrote: > Mike Perez wrote: > > Currently in Havana development, RBD as ephemeral storage has serious > > stability > > and performance issues that makes the Ceph cluster a bottleneck for > using an > > image as a source. > > [...] > > This comes up a

Re: [openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-18 Thread Thierry Carrez
Mike Perez wrote: > Currently in Havana development, RBD as ephemeral storage has serious > stability > and performance issues that makes the Ceph cluster a bottleneck for using an > image as a source. > [...] This comes up a bit late, and the current RC bugs curves[1] really do not encourage me t

Re: [openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-17 Thread Zhi Yan Liu
On Wed, Sep 18, 2013 at 6:16 AM, Mike Perez wrote: > Folks, > > Currently in Havana development, RBD as ephemeral storage has serious > stability > and performance issues that makes the Ceph cluster a bottleneck for using an > image as a source. > > Nova has to currently communicate with the exter

[openstack-dev] FFE Request: Make RBD Usable for Ephemeral Storage

2013-09-17 Thread Mike Perez
Folks, Currently in Havana development, RBD as ephemeral storage has serious stability and performance issues that makes the Ceph cluster a bottleneck for using an image as a source. Nova has to currently communicate with the external service Glance, which has to talk to the separate Ceph storage