John,
thanks for emphasizing this, before this workaround we tried many
different kernel versions including 4.5.x, all the same. The problem
might be particular to our environment as most of the client machines
(compute servers) have large RAM, so plenty of cache space for
inodes/dentries.
On Sun, Dec 11, 2016 at 4:38 PM, Mike Miller wrote:
> Hi,
>
> you have given up too early. rsync is not a nice workload for cephfs, in
> particular, most linux kernel clients cephfs will end up caching all
> inodes/dentries. The result is that mds servers crash due to memory
> limitations. And rsy
Hi,
you have given up too early. rsync is not a nice workload for cephfs, in
particular, most linux kernel clients cephfs will end up caching all
inodes/dentries. The result is that mds servers crash due to memory
limitations. And rsync basically screens all inodes/dentries so it is
the perfe
Am 10.10.2016 um 10:05 schrieb Hauke Homburg:
> Am 07.10.2016 um 17:37 schrieb Gregory Farnum:
>> On Fri, Oct 7, 2016 at 7:15 AM, Hauke Homburg
>> wrote:
>>> Hello,
>>>
>>> I have a Ceph Cluster with 5 Server, and 40 OSD. Aktual on this Cluster
>>> are 85GB Free Space, and the rsync dir has lots
Am 10.10.2016 um 11:33 schrieb John Spray:
> On Mon, Oct 10, 2016 at 9:05 AM, Hauke Homburg
> wrote:
>> Am 07.10.2016 um 17:37 schrieb Gregory Farnum:
>>> On Fri, Oct 7, 2016 at 7:15 AM, Hauke Homburg
>>> wrote:
Hello,
I have a Ceph Cluster with 5 Server, and 40 OSD. Aktual on th
On Mon, Oct 10, 2016 at 9:05 AM, Hauke Homburg wrote:
> Am 07.10.2016 um 17:37 schrieb Gregory Farnum:
>> On Fri, Oct 7, 2016 at 7:15 AM, Hauke Homburg
>> wrote:
>>> Hello,
>>>
>>> I have a Ceph Cluster with 5 Server, and 40 OSD. Aktual on this Cluster
>>> are 85GB Free Space, and the rsync dir
Am 07.10.2016 um 17:37 schrieb Gregory Farnum:
> On Fri, Oct 7, 2016 at 7:15 AM, Hauke Homburg wrote:
>> Hello,
>>
>> I have a Ceph Cluster with 5 Server, and 40 OSD. Aktual on this Cluster
>> are 85GB Free Space, and the rsync dir has lots of Pictures and a Data
>> Volume of 40GB.
>>
>> The Linux
On Fri, Oct 7, 2016 at 7:15 AM, Hauke Homburg wrote:
> Hello,
>
> I have a Ceph Cluster with 5 Server, and 40 OSD. Aktual on this Cluster
> are 85GB Free Space, and the rsync dir has lots of Pictures and a Data
> Volume of 40GB.
>
> The Linux is a Centos 7 and the Last stable Ceph. The Client is a