Re: Luminous cluster - how to find out which clients are still jewel?

[Linh Vu <vul@xxxxxxxxxxxxxx>]

Ah I remember that one, I still have it on my watch list on tracker.ceph.com

Thanks 😊

Alternatively, is there a way to check on a client node what ceph features (jewel, luminous etc.) it has? In our case, it's all CephFS clients, and it's a mix between ceph-fuse (which is Luminous 12.2.5) and kernel client (4.15.x). I suspect the latter is only supporting jewel features but I'd like to confirm. 

---

From: Massimo Sgaravatto <massimo.sgaravatto@xxxxxxxxx>
Sent: Tuesday, 29 May 2018 4:51:56 PM
To: Linh Vu
Cc: ceph-users
Subject: Re: [ceph-users] Luminous cluster - how to find out which clients are still jewel?

 

As far as I know the status wrt this issue is still the one reported in this thread:

http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-September/020585.html

See also:

http://tracker.ceph.com/issues/21315

Cheers, Massimo

On Tue, May 29, 2018 at 8:39 AM, Linh Vu <vul@xxxxxxxxxxxxxx> wrote:

Hi all,

I have a Luminous 12.2.4 cluster. This is what `ceph features` tells me:

...

    "client": {

        "group": {

            "features": "0x7010fb86aa42ada",

            "release": "jewel",

            "num": 257

        },

        "group": {

            "features": "0x1ffddff8eea4fffb",

            "release": "luminous",

            "num": 820

        }

    }

...

How do I find out which clients (IP/hostname/IDs) are actually on jewel feature set?

Regards,

Linh

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