The Synchronous Publishing Latency Trap
warninglatencyUpdated Feb 2, 2026
Publishing messages one-by-one with synchronous publisher confirms creates round-trip latency overhead for each message, dramatically reducing throughput compared to batched asynchronous publishing.
Technologies:
How to detect:
Monitor publisher confirm latency, publish rate, and message batching patterns. Synchronous publishing shows as low throughput (hundreds of msgs/sec) with high per-message confirm latency. Async batching achieves 10-100x higher throughput.
Recommended action:
Implement asynchronous publisher confirms with message batching (batch size 100-1000 messages). Use batch flush intervals (100-500ms) to ensure timely delivery for low-volume periods. Enable publisher confirms for reliability while maintaining high throughput through async handling.