I wonder if this would be impactful, even if `nodown` were set.
When a given OSD latches onto
the new replication network, I would expect it to want to use it for
heartbeats — but when
its heartbeat peers aren’t using the replication network yet, they
won’t be reachable.
I also expected at least some sort of impact, I just tested it in a
virtual lab environment. But besides the temporary "down" OSDs during
container restart the cluster was always responsive (although there's
no client traffic). I didn't even set "nodown". But all OSDs now have
a new backend address and the cluster seems to be happy.
Regards,
Eugen
Zitat von Anthony D'Atri <anthony.datri@xxxxxxxxx>:
I wonder if this would be impactful, even if `nodown` were set.
When a given OSD latches onto
the new replication network, I would expect it to want to use it for
heartbeats — but when
its heartbeat peers aren’t using the replication network yet, they
won’t be reachable.
Unless something has changed since I tried this with Luminous.
On Oct 20, 2020, at 12:47 AM, Eugen Block <eblock@xxxxxx> wrote:
Hi,
a quick search [1] shows this:
---snip---
# set new config
ceph config set global cluster_network 192.168.1.0/24
# let orchestrator reconfigure the daemons
ceph orch daemon reconfig mon.host1
ceph orch daemon reconfig mon.host2
ceph orch daemon reconfig mon.host3
ceph orch daemon reconfig osd.1
ceph orch daemon reconfig osd.2
ceph orch daemon reconfig osd.3
---snip---
I haven't tried it myself though.
Regards,
Eugen
[1]
https://stackoverflow.com/questions/61763230/configure-a-cluster-network-with-cephadm
Zitat von Amudhan P <amudhan83@xxxxxxxxx>:
Hi,
I have installed Ceph Octopus cluster using cephadm with a single network
now I want to add a second network and configure it as a cluster address.
How do I configure ceph to use second Network as cluster network?.
Amudhan
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