Unfortunately, no can not do what you have proposed because to make B a slave of A requires that you make binary copy
ofA to B and then turn on replication from A to B which will break B to C replication.
What you can do with your current configuration is do a pg_dumpall or pg_dump of A and load that logical dump into B
whichwould then replicate the data to C.
Dennis
> On Dec 2, 2015, at 7:24 PM, Florin Andrei <florin@andrei.myip.org> wrote:
>
> I have an old production instance, let's call it A, that I need to decommission soon.
>
> I've created a pair of new instances, B and C, with B replicating to C, following this procedure:
>
> https://wiki.postgresql.org/wiki/Streaming_Replication
>
> But B and C have no data yet. I need to transfer all data from A into B.
>
> Can I daisy-chain streaming replication? In other words, temporarily setup replication like this:
>
> A ==> B ==> C
>
> And after the transfer is done, just remove A from the scheme.
>
>
> --
> Florin Andrei
> http://florin.myip.org/
>
>
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