Re: Ceph iSCSI is a prank?

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On Feb 28, 2018 10:06 AM, "Max Cuttins" <max@xxxxxxxxxxxxx> wrote:


Il 28/02/2018 15:19, Jason Dillaman ha scritto:
On Wed, Feb 28, 2018 at 7:53 AM, Massimiliano Cuttini <max@xxxxxxxxxxxxx> wrote:
I was building ceph in order to use with iSCSI.
But I just see from the docs that need:

CentOS 7.5
(which is not available yet, it's still at 7.4)
https://wiki.centos.org/Download

Kernel 4.17
(which is not available yet, it is still at 4.15.7)
https://www.kernel.org/
The necessary kernel changes actually are included as part of 4.16-rc1
which is available now. We also offer a pre-built test kernel with the
necessary fixes here [1].
This is a release candidate and it's not ready for production.
Does anybody know when the kernel 4.16 will be ready for production?

Release date is late March / early April.





So I guess, there is no ufficial support and this is just a bad prank.

Ceph is ready to be used with S3 since many years.
But need the kernel of the next century to works with such an old technology
like iSCSI.
So sad.
Unfortunately, kernel vs userspace have very different development
timelines.We have no interest in maintaining out-of-tree patchsets to
the kernel.

This is true, but having something that just works in order to have minimum compatibility and start to dismiss old disk is something you should think about.
You'll have ages in order to improve and get better performance. But you should allow Users to cut-off old solutions as soon as possible while waiting for a better implementation.




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[1] https://shaman.ceph.com/repos/kernel/ceph-iscsi-test/


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