On Fri, Jan 25, 2013 at 7:51 PM, Sage Weil wrote:
> On Fri, 25 Jan 2013, Andrey Korolyov wrote:
>> On Fri, Jan 25, 2013 at 4:52 PM, Ugis wrote:
>> > I mean if you map rbd and do not use "rbd lock.." command. Can you
>> > tell which client has mapped certain rbd anyway?
>
> Not yet. We need to ad
On Fri, 25 Jan 2013, Andrey Korolyov wrote:
> On Fri, Jan 25, 2013 at 4:52 PM, Ugis wrote:
> > I mean if you map rbd and do not use "rbd lock.." command. Can you
> > tell which client has mapped certain rbd anyway?
Not yet. We need to add the ability to list watchers in librados, which
will the
On Fri, Jan 25, 2013 at 4:52 PM, Ugis wrote:
> I mean if you map rbd and do not use "rbd lock.." command. Can you
> tell which client has mapped certain rbd anyway?
>
> Ugis
Assume you has an undistinguishable L3 segment, NAT for example, and
accessing cluster over it - there is no possibility fo
On 01/25/2013 11:47 AM, Ugis wrote:
This could work, thanks!
P.S. Is there a way to tell which client has mapped certain rbd if no
"rbd lock" is used?
What you could do is this:
$ rbd lock add myimage `hostname`
That way you know which client locked the image.
Wido
It would be useful to s
On Thu, 24 Jan 2013, Mandell Degerness wrote:
> The advisory locks are nice, but it would be really nice to have the
> fencing. If a node is temporarily off the network and a heartbeat
> monitor attempts to bring up a service on a different node, there is
> no way to ensure that the first node wil
The advisory locks are nice, but it would be really nice to have the
fencing. If a node is temporarily off the network and a heartbeat
monitor attempts to bring up a service on a different node, there is
no way to ensure that the first node will not write data to the rbd
after the rbd is mounted o
On 01/24/2013 05:30 AM, Ugis wrote:
Hi,
I have rbd which contains non-cluster filesystem. If this rbd is
mapped+mounted on one host, it should not be mapped+mounted on the
other simultaneously.
How to protect such rbd from being mapped on the other host?
At ceph level the only option is to use