Polygon experiences hours-long outage

Heimdall Bug is likely to cause outage

The project team stated that proof-of-stake users will “likely experience downtime” beginning early today.

It attributed the outages to issues with Polygon’s Heimdall node, which acts as a verifier layer that creates checkpoints.

Though a precise cause has not been found, the team says that the problem arose from a “minor parameterization fix” to a module that acts as a proof-of-stake bridge between Ethereum and Polygon.

The bug could have also caused Heimdall validators not to agree to use different versions of Heimdall’s chain, which would have resulted in Heimdall being halted. According to the team, a Heimdall outage would also halt Polygon’s Bor node, which serves as a block producer layer and which is the “user-facing proof-of-stake chain.”

Heimdall handles only validator transactions and not transactions between users, according to the team.

It was anticipated that downtime would start at 5:50 p.m. UTC on March 10. According to the Polygon block explorer Polygonscan, there were no new blocks as of 9:50 UTC.

Polygon delays were reported previously in January. However, statements from the team it was apparent at the time that delays were caused by high demand and not technical problems.

Polygon is still popular

Polygon is an Ethereum second-layer network. Some of Ethereum’s largest decentralized finance (DeFi) apps, including Uniswap, Aave, SushiSwap, and Curve Finance, have chosen to leverage Polygon for faster transaction speeds and lower fees.

Polygon’s MATIC token is currently the 16th largest cryptocurrency by market cap. Today’s outage does not seem to have affected prices. MATIC’s value is down 2.3% over the past 24 hours—slightly outperforming Bitcoin, which is down 5.4% today.

Polygon also announced today more than $3.9Billion of MATIC is being staked within its validator ecosystem, and more than $700M in rewards were distributed to participants.

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