PANews reported on May 9th that Coinbase CEO Brian Armstrong posted on the X platform that Coinbase experienced a service outage yesterday, which was unacceptable. The root cause was the simultaneous failure of multiple cooling units in an AWS data center, leading to overheating in one data center. Most of Coinbase's systems are designed with redundancy to handle single availability zone outages, and they did indeed function normally last night. However, centralized exchanges were not spared because their architectures are specifically optimized for low latency and customer co-location, making it difficult to simultaneously maintain availability zone-level fault tolerance. While enabling exchanges to withstand availability zone failures will introduce latency issues and disrupt customer co-location, the team will reassess these trade-offs to at least ensure that outage duration can be significantly reduced when an availability zone switch is needed. He thanked the AWS and Coinbase teams for their overnight efforts to restore service and promised to release a detailed technical explanation later.