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gRPC & High Performance APIs · Lesson

Connection Pooling & Channel Reuse

Maximize gRPC throughput by reusing channels and managing connection pools, avoiding the cost of creating a new connection per request.

The Cost of New Connections

Opening a connection means a TCP handshake plus a TLS handshake — multiple round trips. Doing this per request destroys performance.

gRPC is built to reuse long-lived connections instead.

Channels Multiplex Streams

A gRPC channel wraps an HTTP/2 connection. HTTP/2 multiplexes many concurrent streams (RPCs) over a single connection, so one channel can serve thousands of calls.

All lessons in this course

  1. Message Compression Techniques
  2. Load Balancing Strategies
  3. Keepalive and Connection Management
  4. Connection Pooling & Channel Reuse
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