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Date: Mon, 2 Jun 2014 18:49:11 -0500 (CDT)
From: Scott Whitney <scott@journyx.com>
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To: postgres admin <pgsql-admin@postgresql.org>
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Subject: Failing replication
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So, I have 3 servers: 

1) Production. 
2) "Production" training server. Replicates #1. At same data center. 2 postmasters on separate ports. 
3) Internal "production" server. 3 postmasters on separate ports. Replicates #2 and #1 (both from #2). 

This has happened to me several times in the past few weeks.