[Gluster-users] Gluster Geo replication

[Alvin Starr]

We are revisiting geo-replication on some Centos7 systems running 3.8 so 
I am not sure this observation will help with something newer.

But we were getting burned by the systems connect locally using ::1 as 
the localhost as opposed to 127.0.0.1.

This was caused by the hosts file having an IPv6 localhost line.


On 2023-11-03 06:13, Aravinda wrote:
> While creating the Geo-replication session it mounts the secondary 
> Volume to see the available size. To mount the secondary volume in 
> Primary, port 24007 and 49152-49664 of the secondary volume needs to 
> be accessible from the Primary (Only in the node from where the 
> Geo-rep create command is executed). This need to be changed to use 
> SSH(bug). Alternatively use georep setup tool from 
> https://github.com/aravindavk/gluster-georep-tools. This tool only 
> uses Port 22 of SSH.
>
> Once the Geo-rep session is created, all the communication and the 
> data transfer happens via SSH(Default port: 22).
>
> Aravinda
> Kadalu Technologies
> https://kadalu.tech
>
>
>
> ---- On Tue, 31 Oct 2023 08:40:17 +0530 *dev devops 
> <dev.devops12 at gmail.com>* wrote ---
>
>     Hi All,
>     What are the ports needed to be opened for Gluster Geo replication
>     ? We have a very closed setup, I could gather below info, does all
>     of these ports need to be open on master and slave for inter
>     communication or just 22 would work since it's using the rsync
>     over ssh for actual data push ?
>     *•**Port 22 (TCP):* Used by SSH for secure data communication in
>     Geo-replication.
>     *•**Port 24007 (TCP):* Used by the Gluster daemon (glusterd) for
>     management and to intercommunicate with other glusterd instances.
>     *•**Ports 24008 & 24009 (TCP):* Used for GlusterFS data and
>     metadata operations.
>     *•**Port 49152 to 49664 (TCP):* Used by GlusterFS for client
>     connections.
>     I see some monitoring happening on the tcp ports for slave volume,
>     is this communication secure ?
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-- 
Alvin Starr                   ||   land:  (647)478-6285
Netvel Inc.                   ||   Cell:  (416)806-0133
alvin at netvel.net               ||
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