Hi,
> I would suggest trying kvm instead of xen...
There is a lot of different setup that might work, I'm not looking for
a different setup, I want to fix this one.
We already have a complete running infra using Xen and using an iscsi
NAS as backend for the VM image and Lustre as distributed FS and I
want to replace all that and use ceph instead.
> "net eth0: rx->offset: 0, size: 4294967295"
>
> Seems that there is something wrong with networking code in xen?
The problem doesn't appear with Ceph on its own or Xen on its own, so
it's a weird interaction between them and it could very well be that
the network code of ceph does something unexpected triggering this
behavior in xen. At this point I wouldn't exclude anything ...
Also even if the root fault lies with Xen, I think that the running
away memory issue triggered inside the OSD by this is worth fixing on
its own. A badly behaving client shouldn't be able to DoS the OSD so
easily.
Cheers,
Sylvain
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