Polygon’s Network was down from 5:50 PM UTC on March tenth till about 4 AM UTC on March March eleventh. All customers’ funds are protected, and the group defined the actual points for which the community was not operational throughout these 11 hours.
The Cause for the Polygon Issue
Yesterday, Polygon builders notified customers of an upcoming potential downtime for the community due to a deliberate community improve – the Heimdall node.
The Heimdall implementation is utilized by one of many two layers of the community’s proof-of-stake chain. The group confirmed the downtime at 5:50 PM UTC on March tenth, offering additional clarifications. It’s price noting that no person funds have been compromised throughout the outage.
While we’re engaged on figuring out the definitive trigger, it appears to have originated from an earlier improve consisting of a minot parameterization repair to the Ethereum to Polygon PoS state sync/bridging module.
The group additionally revealed that there “may have been a bug” within the improve, which had an impact on the consensus and led to completely different Heimdall validators being on completely different variations of the blockchain. This prevented them from reaching the two/3 consensus.
When utilizing Tenderming consensus, this case will trigger the Heimdall chain to halt.
The builders additionally reaffirmed that Heimdall doesn’t deal with person transactions however is used for validator-related bridging and transactions.
Furthermore, the group defined that the Bor chain, which is the user-facing PoS chain of Polygon, was additionally halted as a result of it depends on Heimdall for “block proposer committee selection.”
Polygon’s Temporary Hotfix
At round 4 AM UTC on March eleventh, the group efficiently launched a hotfix which restored operations on Polygon’s community, though the Bridge itself (*11*)
The most recent update reads:
We recognize your assist throughout this time and have an replace: we’ve deployed a brief hotfix to unblock the Bor chain and resume producing blocks on the Polygon chain. While this answer is non permanent, the group is engaged on implementing a longer-term improve to repair the Heimdall difficulty.
The community’s bridge, nonetheless, won’t be lively till the ultimate answer is launched.
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