The Sui network suffers an outage due to an error in the transaction scheduling logic

Sui Network suffered a major outage on November 21 after failing to produce blocks on its mainnet, causing the blockchain to grind to a halt.

After a two-hour downtime, the network resumed operations, once again processing transactions.

Sui network restored after downtime

According to the official announcement from the team behind the Layer 1 network, the outage was caused by an error in the transaction scheduling logic that led to validator deadlocks.

“The Sui network is back up and processing transactions, thanks to the fast work of the amazing Sui validator community. The 2 hour downtime was caused by an error in the transaction scheduling logic that caused the validators to crash, which has now been resolved.”

Meanwhile, SUI experienced a nearly 10% reduction in response to the break from $3.7 to $3.35 before climbing back to the press price of $3.64. Network issues also prompted South Korean crypto giant Upbit to temporarily suspend SUI deposits and withdrawals.

SUI – The ‘Solana killer’?

Sui, a Layer 1 blockchain founded by Evan Cheng, Adeniyi Abiodun, Sam Blackshear, George Danezis and Kostas Chalkias, former engineers at Meta’s Novi division, was developed under the umbrella of Mysten Labs.

The recent downtime has prompted responses from industry observers, many of whom highlighted Sui’s aspirations to rival Solana as the leading blockchain. In the past, Solana has faced scrutiny for frequent hours-long outages, prompting several fixes to its infrastructure. While these issues helped Solana run smoothly for a year, the streak ended with a 5-hour outage on February 6. No further incidents have been reported since then.

According to data from DeFiLlama, the total value locked (TVL) within Sui’s DeFi ecosystem surpassed the $1 billion mark in October 2024 and reached a new all-time high of $1.65 billion on 17 november The figure has dropped slightly to $1.6 billion, at the time of writing.

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