PostgreSQL PDX ↔ AMS
External clients on ports
5432
(RW) /
5433
(RO)
PDX → RW (5432)
PDX → RO (5433)
AMS → RW (5432)
AMS → RO (5433)
PDX Local Failover
AMS Local Failover
🚨 Cross-Colo DR
🌐 DNS
cluster.postgres.cfdata.org
PDX Proxy
🔄 PgBouncer
5432 / 5433
⚖️ HAProxy
RW:6544
AMS Proxy
🔄 PgBouncer
5432 / 5433
⚖️ HAProxy
RW:6544
PDX Postgres
PRIMARY
🐘 Postgres
:5432
REPLICA
🐘 Postgres
:5432
REPLICA
🐘 Postgres
:5432
AMS Postgres
REPLICA
🐘 Postgres
:5432
REPLICA
🐘 Postgres
:5432
REPLICA
🐘 Postgres
:5432