[Postgres-xc-general] General config/arch questions

[Lionel F. <lio...@gm...>]

Hello,

I'm starting an evaluation of the cluster (not having any PG
background, but Oracle & MySql for years...), and some questions
appear to me after reading the doc, any help appreciated.

My actual setup is :
pgxc1 for GTM, Coordinator and datanode
pgxc2 for datanode only

1.General : Is a coordinator needed for each node, or one coordinator
'to rule them all' can be setup ?

2. Configuration :  What should be the differences between
postgresql.conf in /datanode and /coordinator, if there are any ? Some
portions are they ignored for a specific function (ex : coordinator vs
datanode config, etc...)
In this can pg_hba.conf & postgresql.conf be shared for the same
server (maybe using symbolic links...)

3. GTM : I get on second node an "WARNING:  Do not have a GTM snapshot
available", can this be related to previous config files/setup  ?

4. Administration : are there ways of getting the online status of the
nodes from one node to another

Thanks

Lionel F.