# Coinbase trading outage exposed single-availability-zone dependency

DevFeed: [Coinbase trading outage exposed single-availability-zone dependency](<https://devfeed.tech/articles/reliability-fail-no-automated-zone-failover-for-coinbase-s-global-trading-service-40917.md>)

Original publisher: [Read original article](<https://blog.pragmaticengineer.com/coinbase-fail/>)

Author: Gergely Orosz

Published: 2026-06-23T16:30:59Z

Content type: opinion

Language: en

Sources: [The Pragmatic Engineer](<https://devfeed.tech/sources/the-pragmatic-engineer-2.md>)

Topics: [coinbase](<https://devfeed.tech/topics/coinbase.md>), [reliability](<https://devfeed.tech/topics/reliability.md>), [Amazon Web Services](<https://devfeed.tech/topics/aws.md>), [Availability](<https://devfeed.tech/topics/availability.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Latency](<https://devfeed.tech/topics/latency.md>)

Tags: [availability](<https://devfeed.tech/tags/availability.md>), [aws](<https://devfeed.tech/tags/aws.md>), [coinbase](<https://devfeed.tech/tags/coinbase.md>), [latency](<https://devfeed.tech/tags/latency.md>), [outage](<https://devfeed.tech/tags/outage.md>), [raft](<https://devfeed.tech/tags/raft.md>), [reliability](<https://devfeed.tech/tags/reliability.md>)

## AI overview

A commentary article examines a nearly 10-hour Coinbase trading outage that coincided with a regional AWS outage. It says Coinbase confirmed that its matching engine depended on a single availability zone, a design chosen to avoid inter-zone latency for its Raft-based replicated cluster.

## Source excerpt

Hi, this is Gergely with a bonus, free issue of the Pragmatic Engineer Newsletter. In every issue, I cover Big Tech and startups through the lens of senior engineers and engineering leaders. Today, we cover one out of four topics from this past The Pulse issue. Full subscribers received the