Re: Ceph features and linux kernel version for upmap

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Yes, upmap will work with 4.15. The Ceph kernel client is a completely independent implementation from the user space client, so you can't really map it to any specific features. It has some Luminous features but lacks others.


Paul
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Paul Emmerich

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On Tue, Jul 9, 2019 at 4:20 PM Mattia Belluco <mattia.belluco@xxxxxx> wrote:
Hello ml,

I have been looking for an updated table like the one you can see here:

https://ceph.com/geen-categorie/feature-set-mismatch-error-on-ceph-kernel-client/


Case in point we would like to use upmap on our ceph cluster (currently
used mainly for CephFS) but `ceph feature` return:

"client": [
        {
            "features": "0x7010fb86aa42ada",
            "release": "jewel",
            "num": 69
        },
]

despite the CephFS clients running with a fairly recent 4.15 kernel.

If anyone has any pointers they would be most welcome

Kind regards

Mattia

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