> [enterprisedb at baba2 bin]$ ./failover_on_node1.sh
> <stdin>:19: PGRES_FATAL_ERROR select
> "_edb_replication_example".failedNode(1,
> 2);  - ERROR:  Slony-I: cannot failover - node 3 has no path to the backup
> node
> ---------------------
>
> Is my scripts OK?

Well, it sounds as though there is a configuration problem there, where
there are not enough STORE PATH requests to keep the network of nodes
connected.

The failover evidently won't work unless you already have enough paths for
there to be data to communicate with the nodes that are left.