[Sequoiadb-discuss] Sequoia replication

[Heshel R. <hs...@gm...>]

Hello all,

I have a couple of questions concerning the replication of Sequoia. Some
background info, we have two locations that we are in the process of setting
up. In each location will be two controllers, currently sitting on the same
box as the application server. These controllers then have one or more
PostgreSQL database boxes for backends. We will also be setting up a pair of
switches for the internal communications in each location. Hopefully the
duplication will allow me to sleep soundly if we ever have a piece of
hardware fail.. ;) We are running FreeBSD for the under lying OS, and the
binary of Sequoia 2.10.10.

First, I am attempting to use a dedicated link between the controllers in
the same physical location, however I cannot see to get the controllers to
use the IP of this interface for replication. I will be removing my current
configuration and starting fresh in hopes that it may just be an error in
them, but I thought I would also ask here if can it be done while I work
that out.

Second, I did have a working configuration for using a single nic for all
communication, however, there was some issues with it. The controllers would
disconnect shortly after forming the cluster, upon checking my logs they
were using ports outside of what I had configured the hedra/jgroups
configuration files for. I had configured the controllers to use 7900 as the
communication port, which they did use, but none of the other ports were
defined by myself to connect to. (This is a reason I am looking at the
separate interface for the controller communication, as opening pf right up
on the main interface(s), or turning it off is not an option. However,
having a crossconnect between the two servers that is unhindered is
acceptable.)

Third I am required to setup replication between 2 physical locations. Since
the plan is to use Sequoia for replication in each location, there have been
talks of using it for the wan replication as well. I am curious about
peoples experience with such a setup. As another possibility, I have been
looking into the use of the tungsten connector between the controllers at
each site.

Some additonal questions;

FreeBSD rc scripts? I did some digging in the past to see if this was
possible, found some talk of it but nothing more.

Probably a very common question, new releases of Sequoia? I know working is
being done on 4.x, and possibly 2.10.11? Just curious if there is any
timelimes?

Thanks for your time,
Heshel