Sui Blockchain Recovers After 2-Hour Outage, Bug Fixed

The Sui blockchain, a decentralized layer-1 network, is now fully operational after experiencing a two-hour outage earlier today on Nov. 21. According to an update from the Sui Foundation on X, the downtime was caused by a bug in the transaction scheduling logic.

This bug led to validators crashing, halting the blockchain’s ability to process transactions. The foundation confirmed that the issue has now been fixed, and the network is back up and running.

What Had Happened?

The downtime began at 9:15 am UTC, when the blockchain stopped producing blocks. Validators, the network’s core systems responsible for verifying and adding transactions, crashed due to a flaw in the transaction scheduling logic. This interruption froze all activity on the Sui blockchain.

The foundation quickly acknowledged the issue on X, confirming that the network was not processing transactions. About two hours later, the foundation announced that the problem had been identified and a fix was implemented, restoring normal operations.

The so-called “Solana killer” came under scrutiny during the outage. Many in the cryptocurrency community criticized the network for its inability to maintain uninterrupted service. Crypto influencer Ajay Kashyap took to X, saying, “SUI blockchain is down. And they claimed to be a Solana Killer.”

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SUI Went Down 11% During Outage

The outage also affected network’s native cryptocurrency, SUI, which saw its price drop by nearly 11% during the disruption, falling to $3.40. However, after resuming its operation, the token recovered its previous value and now trading at $3.6 at the time of this writing.

South Korean crypto exchange Upbit responded to blockchain outage by temporarily suspending SUI deposits and withdrawals. Other exchanges are likely to have taken similar precautions to safeguard users during the disruption.

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