Wu Shuo learned that the Ethereum consensus layer client Prysm team has released the post-mortem report on the Fusaka mainnet outage on December 4th. The outage was caused by nearly all Prysm nodes exhausting resources when processing a specific proof, due to Prysm beacon nodes performing high-cost state recomputations for asynchronous proofs. The incident resulted in missing 41 epochs, network participation dropping to 75%, and validators losing approximately 382 ETH in rewards. The team initially addressed this with the --disable-last-epoch-target flag as a temporary fix, and then fundamentally changed the proof verification logic in versions v7.0.1 and v7.1.0 to implement a permanent fix. This incident exposed deficiencies in the team’s communication and testing, but also highlighted the crucial role of Ethereum client diversity in preventing more severe finality risks.
This page may contain third-party content, which is provided for information purposes only (not representations/warranties) and should not be considered as an endorsement of its views by Gate, nor as financial or professional advice. See Disclaimer for details.
Ethereum consensus layer client Prysm team releases Fusaka mainnet failure post-mortem report
Wu Shuo learned that the Ethereum consensus layer client Prysm team has released the post-mortem report on the Fusaka mainnet outage on December 4th. The outage was caused by nearly all Prysm nodes exhausting resources when processing a specific proof, due to Prysm beacon nodes performing high-cost state recomputations for asynchronous proofs. The incident resulted in missing 41 epochs, network participation dropping to 75%, and validators losing approximately 382 ETH in rewards. The team initially addressed this with the --disable-last-epoch-target flag as a temporary fix, and then fundamentally changed the proof verification logic in versions v7.0.1 and v7.1.0 to implement a permanent fix. This incident exposed deficiencies in the team’s communication and testing, but also highlighted the crucial role of Ethereum client diversity in preventing more severe finality risks.