Re: rh8 krbd mapping causes no match of type 1 in addrvec problem decoding monmap, -2

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Thanks.

Interestingly the older kernel did not have a problem with it but the newer
kernel does.


Respectfully,

*Wes Dillingham*
wes@xxxxxxxxxxxxxxxxx
LinkedIn <http://www.linkedin.com/in/wesleydillingham>


On Tue, Jul 19, 2022 at 3:35 PM Ilya Dryomov <idryomov@xxxxxxxxx> wrote:

> On Tue, Jul 19, 2022 at 9:12 PM Wesley Dillingham <wes@xxxxxxxxxxxxxxxxx>
> wrote:
> >
> >
> > from ceph.conf:
> >
> > mon_host = 10.26.42.172,10.26.42.173,10.26.42.174
> >
> > map command:
> > rbd --id profilerbd device map win-rbd-test/originalrbdfromsnap
> >
> > [root@a2tlomon002 ~]# ceph mon dump
> > dumped monmap epoch 44
> > epoch 44
> > fsid 227623f8-b67e-4168-8a15-2ff2a4a68567
> > last_changed 2022-05-18 15:35:39.385763
> > created 2016-08-09 10:02:28.325333
> > min_mon_release 14 (nautilus)
> > 0: [v2:10.26.42.173:3300/0,v1:10.26.42.173:6789/0] mon.a2tlomon003
> > 1: v2:10.26.42.174:3300/0 mon.a2tlomon004
> > 2: [v2:10.26.42.172:3300/0,v1:10.26.42.172:6789/0] mon.a2tlomon002
> >
> > Looks like something is up with mon:1 only listening on v2 addr not sure
> if thats the root cause but seems likely. Though would think the map should
> still be able to have success.
>
> Yes, this is the root cause.  Theoretically the kernel client could
> ignore it and attempt to proceed but it doesn't, on purpose.  This is
> a clear configuration/user error which is better fixed than worked
> around.
>
> You need to either amend mon1 addresses or tell the kernel client to
> use v2 addresses with e.g. "rbd device map -o ms_mode=prefer-crc ...".
>
> Thanks,
>
>                 Ilya
>
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