Create mostafa-abdelraouf.md

Author: AmandaPerino

_world_sessions/2024/day-1/mostafa-abdelraouf.md

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+---
+layout: world/2024/session
+title: Going beyond a Single Postgres Instance with Rails
+speaker: mostafa-abdelraouf.md 
+time: 11:15 - 11:45
+location: Track 2
+running_order: 4
+---
+
+We'll look at the journey of evolving Instacart’s Rails application beyond a single Postgres instance, how we managed the added complexity from adding read replicas, and later vertically and horizontally sharding. We'll touch on some topics around query routing, connection pooling and load balancing.