Techub News reported that Sui released an analysis and investigation report stating that between 5:15 PM and 7:45 PM Hong Kong time on November 21, the Sui mainnet experienced a complete network outage, with all validators trapped in a crash loop, resulting in the inability to process any transactions. The Sui network experienced its first network failure due to an error in the congestion control code. Congestion control is a system that limits the speed at which transactions are written to a single shared object, preventing the network from becoming overloaded due to lengthy checkpoint execution times. The error originated from a recent upgrade to the congestion control code, which was intended to better utilize the shared object. The team discovered the issue and immediately fixed the code (PR #20365). This code fix has been released in version 1.37.4 of the mainnet and version 1.38.1 of the testnet.
Sui released an analysis and investigation report: the wrong upgrade code caused the network failure, and the code fix has been released
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