15 Sep
2023
15 Sep
'23
7:25 a.m.
Hi,
as the documentation sends mixed signals in
https://docs.ceph.com/en/latest/rados/configuration/network-config-ref/#ipv…
"Note
Binding to IPv4 is enabled by default, so if you just add the option to
bind to IPv6 you’ll actually put yourself into dual stack mode."
and
https://docs.ceph.com/en/latest/rados/configuration/msgr2/#address-formats
"Note
The ability to bind to multiple ports has paved the way for dual-stack
IPv4 and IPv6 support. That said, dual-stack operation is not yet
supported as of Quincy v17.2.0."
just the quick questions:
Is a dual stacked networking with IPv4 and IPv6 now supported or not?
From which version on is it considered stable?
Are OSDs now able to register themselves with two IP addresses in the
cluster map? MONs too?
Regards
--
Robert Sander
Heinlein Consulting GmbH
Schwedter Str. 8/9b, 10119 Berlin
https://www.heinlein-support.de
Tel: 030 / 405051-43
Fax: 030 / 405051-19
Amtsgericht Berlin-Charlottenburg - HRB 220009 B
Geschäftsführer: Peer Heinlein - Sitz: Berlin
18 Sep
18 Sep
9:19 a.m.
On 15-09-2023 09:25, Robert Sander wrote:
Hi,
as the documentation sends mixed signals in
https://docs.ceph.com/en/latest/rados/configuration/network-config-ref/#ipv…
"Note
Binding to IPv4 is enabled by default, so if you just add the option to
bind to IPv6 you’ll actually put yourself into dual stack mode."
and
https://docs.ceph.com/en/latest/rados/configuration/msgr2/#address-formats
"Note
The ability to bind to multiple ports has paved the way for dual-stack
IPv4 and IPv6 support. That said, dual-stack operation is not yet
supported as of Quincy v17.2.0."
just the quick questions:
Is a dual stacked networking with IPv4 and IPv6 now supported or not?
From which version on is it considered stable?
IIIRC, the "enable dual" stack PR's were more or less
"accidentally"
merged, at least that's what Radoslaw Zarzynski (added to CC) told me
during the developer summit at Cephalocon in Amsterdam. There was a
discussion about dual stack support after that. I voted in favor of not
supporting dual stack. Currently there are no IPv6 (only) tests that are
performed, it's IPv4 only. Let alone dual stack testing setups. It gets
complicated quickly if you want to test all sort of combinations (some
daemons with dual stack, some IPv4 only, some IPv6 only, etc.).
Are OSDs now able to register themselves with two IP
addresses in the
cluster map? MONs too?
At least the OSDs and MDSs can, and caused trouble for kernels with
messenger v2 support. We had to disable IPv4 explicitly to get rid of
the IPv4 "0.0.0.0" addresses in the MDS map. See this thread [1].
Gr. Stefan
[1]:
https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/GLNS2S6BK7Q…
9:33 a.m.
Hello,
a note: we are running IPv6 only clusters since 2017, in case anyone has
questions. In earlier releases no tunings were necessary, later releases
need the bind parameters.
BR,
Nico
Stefan Kooman <stefan(a)bit.nl> writes:
On 15-09-2023 09:25, Robert Sander wrote:
--
Sustainable and modern Infrastructures by ungleich.ch
Hi,
as the documentation sends mixed signals in
https://docs.ceph.com/en/latest/rados/configuration/network-config-ref/#ipv…
"Note
Binding to IPv4 is enabled by default, so if you just add the option
to bind to IPv6 you’ll actually put yourself into dual stack mode."
and
https://docs.ceph.com/en/latest/rados/configuration/msgr2/#address-formats
"Note
The ability to bind to multiple ports has paved the way for
dual-stack IPv4 and IPv6 support. That said, dual-stack operation is
not yet supported as of Quincy v17.2.0."
just the quick questions:
Is a dual stacked networking with IPv4 and IPv6 now supported or
not?
From which version on is it considered stable?
IIIRC, the "enable dual" stack PR's were more or less
"accidentally"
merged, at least that's what Radoslaw Zarzynski (added to CC) told me
during the developer summit at Cephalocon in Amsterdam. There was a
discussion about dual stack support after that. I voted in favor of
not supporting dual stack. Currently there are no IPv6 (only) tests
that are performed, it's IPv4 only. Let alone dual stack testing
setups. It gets complicated quickly if you want to test all sort of
combinations (some daemons with dual stack, some IPv4 only, some IPv6
only, etc.).
Are OSDs now able to register themselves with two
IP addresses in
the cluster map? MONs too?
At least the OSDs and MDSs can, and caused trouble for kernels with
messenger v2 support. We had to disable IPv4 explicitly to get rid of
the IPv4 "0.0.0.0" addresses in the MDS map. See this thread [1].
Gr. Stefan
[1]:
https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/GLNS2S6BK7Q…
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20 Sep
20 Sep
6:36 a.m.
On 9/18/23 11:19, Stefan Kooman wrote:
IIIRC, the "enable dual" stack PR's were
more or less "accidentally"
merged
So this looks like a big NO on the dual stack support for Ceph.
I just need an answer, I do not need dual stack support.
It would be nice if the documentation was a little be clearer on this topic.
Regards
--
Robert Sander
Heinlein Consulting GmbH
Schwedter Str. 8/9b, 10119 Berlin
https://www.heinlein-support.de
Tel: 030 / 405051-43
Fax: 030 / 405051-19
Amtsgericht Berlin-Charlottenburg - HRB 220009 B
Geschäftsführer: Peer Heinlein - Sitz: Berlin
23 Apr
23 Apr
2:36 p.m.
Sounds like an opportunity for you to submit an expansive code PR to implement it.
On Apr 23, 2024, at 04:28, Marc
<Marc(a)f1-outsourcing.eu> wrote:
I have removed dual-stack-mode-related
information from the documentation
on the assumption that dual-stack mode was planned but never fully
implemented.
See https://tracker.ceph.com/issues/65631.
See https://github.com/ceph/ceph/pull/57051.
Hat-tip to Dan van der Ster, who bumped this thread for me.
"I will remove references to dual-stack mode in the documentation because i"
I prefer if it would state that dual stack is not supported (and maybe why). By default I
would assume such a thing is supported. I would not even suspect it could be an issue.
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To unsubscribe send an email to ceph-users-leave(a)ceph.io 
8:28 a.m.
I have removed dual-stack-mode-related information
from the documentation
on the assumption that dual-stack mode was planned but never fully
implemented.
See https://tracker.ceph.com/issues/65631.
See https://github.com/ceph/ceph/pull/57051.
Hat-tip to Dan van der Ster, who bumped this thread for me.
"I will remove references to dual-stack mode in the documentation because i"
I prefer if it would state that dual stack is not supported (and maybe why). By default I
would assume such a thing is supported. I would not even suspect it could be an issue.
6:45 a.m.
I have removed dual-stack-mode-related information from the documentation on the
assumption that dual-stack mode was planned but never fully implemented.
See https://tracker.ceph.com/issues/65631.
See https://github.com/ceph/ceph/pull/57051.
Hat-tip to Dan van der Ster, who bumped this thread for me.
Zac Dover
Upstream Documentation
Ceph Foundation
On Wednesday, September 20th, 2023 at 4:36 PM, Robert Sander
<r.sander(a)heinlein-support.de> wrote:
>
>
> On 9/18/23 11:19, Stefan Kooman wrote:
>
> > IIIRC, the "enable dual" stack PR's were more or less
"accidentally"
> > merged
>
>
> So this looks like a big NO on the dual stack support for Ceph.
>
> I just need an answer, I do not need dual stack support.
>
> It would be nice if the documentation was a little be clearer on this topic.
>
> Regards
> --
> Robert Sander
> Heinlein Consulting GmbH
> Schwedter Str. 8/9b, 10119 Berlin
>
> https://www.heinlein-support.de
>
> Tel: 030 / 405051-43
> Fax: 030 / 405051-19
>
> Amtsgericht Berlin-Charlottenburg - HRB 220009 B
> Geschäftsführer: Peer Heinlein - Sitz: Berlin
> _______________________________________________
> ceph-users mailing list -- ceph-users(a)ceph.io
> To unsubscribe send an email to ceph-users-leave(a)ceph.io
15
days inactive
236
days old
6 comments
6 participants
participants (6)
-
Anthony D'Atri -
Marc -
Nico Schottelius -
Robert Sander -
Stefan Kooman -
Zac Dover