http://www.slony.info/bugzilla/show_bug.cgi?id=178

--- Comment #2 from Steve Singer <ssinger at ca.afilias.info> 2011-11-29 13:29:11 PST ---
Since no patch was forthcoming for the original description I propose an
alternative.

I propose only to address the problem of a cluster like this

 Node 1-------------->Node 2          
    (set 1)             (set 2)
 |                      |
 |                      |
 V                      V
Node 3-------------->  Node 4

If node 1 and 2 are both lost at the same time

Assuming:
  - There are no oustanding configuration/subscription events at the time of
failure.
 - No additional failures happen while the FAILOVER command is executing

This patch proposes

FAILOVER (  NODE=(ID=1,BACKUP NODE=2),
            NODE=(ID=3, BACKUP NODE=4));

It also includes a multi-node DROP NODE
DROP NODE( id='1,2', event node=3);

https://github.com/ssinger/slony1-engine/tree/multi_node_failover_steve
Please review and comment on the syntax.

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