No. Only one postmaster can access the PGDATA dir at one time.
Attempting to run multiple copies will result in data corruption.
http://gborg.postgresql.org/project/pgreplication/projdisplay.php
contains the gborg project for replication.
Anuradha Ratnaweera wrote:
>I am wondering if it is sane to mount PGDATA over NFS on many
>machines and run posmaster backends on them, so that all the
>postmasters are using the same database.
>
>Obviously performance is going to suffer because network traffic
>is going to be high, but later we may use a distributed filesystem
>with replications instead of NFS.
>
>Thanks in advance.
>
> Anuradha
>
>
>