On Thu, Jul 13, 2017 at 10:58 AM, Maged Mokhtar wrote:
> The case also applies to active/passive iSCSI.. you still have many
> initiators/hypervisors writing concurrently to the same rbd image using a
> clustered file system (csv/vmfs).
Except from that point-of-view, there is only a single RBD c
--
From: "Jason Dillaman"
Sent: Thursday, July 13, 2017 4:45 AM
To: "Maged Mokhtar"
Cc: "Mohamad Gebai" ; "ceph-users"
Subject: Re: [ceph-users] RBD journaling benchmarks
> On Mon, Jul 10, 2017 at 3:41
On Mon, Jul 10, 2017 at 3:41 PM, Maged Mokhtar wrote:
> On 2017-07-10 20:06, Mohamad Gebai wrote:
>
>
> On 07/10/2017 01:51 PM, Jason Dillaman wrote:
>
> On Mon, Jul 10, 2017 at 1:39 PM, Maged Mokhtar wrote:
>
> These are significant differences, to the point where it may not make sense
> to use
On 2017-07-10 20:06, Mohamad Gebai wrote:
> On 07/10/2017 01:51 PM, Jason Dillaman wrote: On Mon, Jul 10, 2017 at 1:39
> PM, Maged Mokhtar wrote: These are significant
> differences, to the point where it may not make sense
> to use rbd journaling / mirroring unless there is only 1 active clien
On 07/10/2017 01:51 PM, Jason Dillaman wrote:
> On Mon, Jul 10, 2017 at 1:39 PM, Maged Mokhtar wrote:
>> These are significant differences, to the point where it may not make sense
>> to use rbd journaling / mirroring unless there is only 1 active client.
> I interpreted the results as the same R
On Mon, Jul 10, 2017 at 1:39 PM, Maged Mokhtar wrote:
> These are significant differences, to the point where it may not make sense
> to use rbd journaling / mirroring unless there is only 1 active client.
I interpreted the results as the same RBD image was being concurrently
used by two fio jobs
On 2017-07-10 18:14, Mohamad Gebai wrote:
> Resending as my first try seems to have disappeared.
>
> Hi,
>
> We ran some benchmarks to assess the overhead caused by enabling
> client-side RBD journaling in Luminous. The tests consists of:
> - Create an image with journaling enabled (--image-fea
Resending as my first try seems to have disappeared.
Hi,
We ran some benchmarks to assess the overhead caused by enabling
client-side RBD journaling in Luminous. The tests consists of:
- Create an image with journaling enabled (--image-feature journaling)
- Run randread, randwrite and randrw wor
