Coinbase is reviewing its exchange infrastructure after a cooling failure in an AWS data center took multiple trading services offline, blocked access to some accounts, and delayed the display of customer balances. CEO Brian Armstrong called the outage “unacceptable” and said Coinbase would reevaluate tradeoffs around speed, colocation, and quick recovery in the event of an infrastructure failure.
Important points:
- Coinbase CEO Brian Armstrong said the AWS-related exchange outages are unacceptable to customers.
- Trading, account access, and customer account information were disrupted across several Coinbase exchange services.
- Coinbase plans to reconsider resiliency trade-offs to reduce future outage periods and customer impact.
Armstrong says resilience trade-offs will be revisited
Cryptocurrency exchange Coinbase (NASDAQ: COIN) explained how a cooling failure in its AWS data center caused a service outage that disrupted trading, exchange access, and customer account data across the platform. Coinbase CEO Brian Armstrong addressed the X incident, and Engineering Lead Rob Witoff detailed the recovery process and impact on customers.
“Last night, Coinbase experienced an outage and this is absolutely unacceptable,” Armstrong wrote on May 8th. It added that while most Coinbase systems are designed to withstand downtime in one AWS availability zone, the centralized exchange did not respond that way during the outage. “Although it is possible to make exchanges resilient to AZ failures, this can compromise customer colocation and introduce undesirable delays,” Armstrong said, adding:
“In light of this incident, we are reconsidering these trade-offs and working to provide our customers with the best possible trading location. At the very least, we should be able to significantly reduce the outage period should a move to AZ be necessary.”
Armstrong said Coinbase will consider how to balance exchange speed, customer co-location, and recovery time after infrastructure failures. His comments focused on the impact and reduced duration of future outages affecting customer access and trading activity.
How Coinbase restored transactions and balance updates
Rob Witoff, Coinbase’s engineering lead, wrote on X that the chaos began late on May 7, when internal systems began to fail and emergency teams began investigating. The outage affected spot trading, prime, international and derivatives exchanges. Customers also experienced problems accessing exchange services, performing transactions, and viewing account balances.
Witoff explained that trading was halted because the exchange system could no longer continue to operate safely due to infrastructure disruption. He also noted that internal messaging systems had slowed down, causing some account information to be delayed until the recovery process caught up. He admitted:
“It is unacceptable for us to lose access to our accounts, even temporarily.”
Recovery was handled in stages rather than all at once. Coinbase was able to move the affected workloads away from the affected area, restore the systems needed to process transactions, and recover delayed customer data. The market has cautiously reopened, starting with cancellation-only mode, followed by product checking, auction mode, and then trading resumed on Coinbase Exchange.
