On 13/02/2024 13:31, Torkil Svensgaard wrote:
Hi
Cephadm Reef 18.2.0.
We would like to remove our cluster_network without stopping the cluster
and without having to route between the networks.
global advanced cluster_network 192.168.100.0/24
*
global advanced public_network 172.21.12.0/22
*
The documentation[1] states:
"
You may specifically assign static IP addresses or override
cluster_network settings using the cluster_addr setting for specific OSD
daemons.
"
So for one OSD at a time I could set cluster_addr to override the
cluster_network IP and use the public_network IP instead? As the
containers are using host networking they have access to both IPs and
will just layer 2 the traffic, avoiding routing?
When all OSDs are running with a public_network IP set via cluster_addr
we can just delete the cluster_network setting and then remove all the
ceph_addr settings, as with no cluster_network setting the
public_network setting will be used?
We tried with one OSD and it seems to work. Anyone see a problem with
this approach?
Turned out to be even simpler for this setup where the OSD containers
have access til both host networks:
1) ceph config rm global cluster_network -> nothing happened, no
automatic redeploy or restart
2) Restart OSDs
Mvh.
Torkil
Thanks
Torkil
[1]
https://docs.ceph.com/en/latest/rados/configuration/network-config-ref/#id3
--
Torkil Svensgaard
Sysadmin
MR-Forskningssektionen, afs. 714
DRCMR, Danish Research Centre for Magnetic Resonance
Hvidovre Hospital
Kettegård Allé 30
DK-2650 Hvidovre
Denmark
Tel: +45 386 22828
E-mail: torkil@xxxxxxxx
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