I don't agree with this point.
3.10 kernel version is enough, becault Redhat ceph enterprise product is running on Rhel 7 which is 3.10 kernel version too.
though redhat 3.10 kernel version is different from upstream kernel 3.10 ; If you use Centos or Rhel Linux distribution as a ceph client , it is not a problem.
Margin Hu
Love open source software
github: http://www.github.com/
mail: jhu_com@xxxxxxxxxxxCorrect me if I'm wrong, be t the kernel version is only a factor if you are using the krbd driver, correct (mapping an rbd with the kernel driver). If you were using Ceph-fuse, librbd, etc then the version of the kernel on the client wouldn't matter.
Sent from my iPhone
> On Dec 31, 2016, at 3:23 AM, Wido den Hollander <wido@xxxxxxxx> wrote:
>
>
>> Op 31 december 2016 om 6:56 schreef Manuel Sopena Ballesteros <manuel.sb@xxxxxxxxxxxxx>:
>>
>>
>> Hi,
>>
>> I have several questions regarding kernel running on client machines:
>>
>>
>> * Why is kernel 3.10 considered an old kernel to run ceph clients?
>>
>
> Development in the Ceph world goes fast and 3.10 is a old kernel in that case. If you check the release notes for the Linux kernel you will see that there are a lot of changes.
>
>> * Which features are missing?
>>
>
> A lot, probably to much to sum up here.
>
>> * What would be the impact of running clients on centos7.3 (kernel 3.10) compared to using a higher/recommended version?
>>
>
> Not able to access data, crashes on the client, performance issues. All kinds of things.
>
> Just don't use the 3.10 kernel, try using a more recent kernel.
>
> Wido
>
>> Thank you very much
>>
>> Manuel
>>
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