On Tue, 20 Sep 2016, Peter Eisentraut wrote:

On 9/18/16 4:17 PM, Steve Singer wrote:

I think if we want to prevent the creation of subscriptions that point
to self, then we need to create a magic token when the postmaster starts
and check for that when we connect.  So more of a running-instance
identifier instead of a instance-on-disk identifier.

The other option is that we just allow it and make it more robust.

I think we should go with the second option for now. I feel that the effort is better spent making sure that initial syncs that have don't subscribe (for whatever reasons) can be aborted instead of trying to build a concept of node identity before we really need it.


Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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