Re: Access to cephfs from two different networks

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On 2/20/19 1:03 PM, Andrés Rojas Guerrero wrote:
> Hi all, sorry, we are newbies in Ceph and we have a newbie question
> about it. We have a Ceph cluster with three mon's and two public networks:
> 
> public network = 10.100.100.0/23,10.100.101.0/21
> 
> We have seen that ceph-mon are listen in only one of this network:
> 
> 
> tcp  0  0 10.100.100.9:6789  0.0.0.0:*      LISTEN      135385/ceph-mon
> 
> 
> but not in the other public network necessary to access to cephfs from
> this second network. We have seen that in principle that it's not
> possible?:
> 
> https://access.redhat.com/solutions/1463363
> 
> http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-July/019659.html
> 
> 
> and it's seems necessary to route the traffic from the second public
> network to the first public network, but seeing this our question is why
> you can define differents public networks in ceph if only you can access
> to only one from the ceph-mon daemons? perhaps you can configure the
> other mon's with the other public network?   Or is there anything we're
> not getting right?
> 
No, you can't.

Routed is really the way to go. It makes your life so much easier if you
have routed networks then just having all these separate networks.

Wido

> Thank's in advance.
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