Re: Ceph and NFS

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On Mon, Jan 18, 2016 at 4:48 AM, Arthur Liu <arthurhsliu@xxxxxxxxx> wrote:
>
>
> On Mon, Jan 18, 2016 at 11:34 PM, Burkhard Linke
> <Burkhard.Linke@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>>
>> Hi,
>>
>> On 18.01.2016 10:36, david wrote:
>>>
>>> Hello All.
>>>         Does anyone provides Ceph rbd/rgw/cephfs through NFS?  I have a
>>> requirement about Ceph Cluster which needs to provide NFS service.
>>
>>
>> We export a CephFS mount point on one of our NFS servers. Works out of the
>> box with Ubuntu Trusty, a recent kernel and kernel-based cephfs driver.
>>
>> ceph-fuse did not work that well, and using nfs-ganesha 2.2 instead of
>> standard kernel based NFSd resulted in segfaults and permissions problems.
>
>
> I've found that using knfsd does not preserve cephfs directory and file
> layouts, but using nfs-ganesha does. I'm currently using nfs-ganesha 2.4dev5
> and seems stable so far.

Can you expand on that? In what manner is it not preserving directory
and file layouts?
-Greg

>
>
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