Key facts
- Coinbase's Base layer-2 network experienced two outages.
- The outages were caused by a sequencer bug.
- The bug involved a "race condition" in block-building logic.
- Block production was halted for over two hours combined.
- A second outage occurred after a system reset.
Coinbase's Base layer-2 network suffered two outages that collectively lasted over two hours, according to a post-mortem report. The root cause was identified as a "race condition" and a bug within the sequencer's block-building logic. This issue directly led to the halting of block production on the network. The second outage occurred after an attempt to reset the system following the initial incident, indicating the complexity of resolving the bug. The network's block production was suspended for a significant period across both events.