The Polygon network recently encountered a significant technical challenge, experiencing a bug within its Bor and Erigon nodes. This issue led to disruptions in consensus finality and affected Remote Procedure Call (RPC) services, causing temporary access problems for applications built on the network. Despite these disruptions, the core Polygon blockchain remained operational, continuing to produce blocks throughout the incident.
Key Takeaways
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A bug in Polygon's Bor and Erigon nodes caused delays in consensus finality.
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RPC services and some validators experienced disruptions, requiring them to resynchronize.
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The core Polygon blockchain continued to produce blocks and remained live.
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Restarting affected nodes resolved the issue for many participants.
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Polygon engineers are actively working with infrastructure providers to implement a permanent fix.
Node Bug Disrupts Finality and RPC Services
The incident, which began early Wednesday, was attributed to a bug affecting the Bor and Erigon nodes, crucial components for the Polygon network's operation. This bug specifically impacted the network's consensus finality, meaning that while new blocks were being created, their final confirmation was delayed. Consequently, many Remote Procedure Call (RPC) providers and validators were forced to revert to the last finalized block and resynchronize their systems to restore accurate network states. This led to temporary access issues for decentralized applications (dApps) that rely on real-time data from the network.
Network Remains Live Despite Challenges
Polygon representatives and status updates confirmed that the core blockchain operations were not compromised. The network continued to produce blocks, and the chain remained live throughout the disruption. Engineers identified that restarting the affected nodes was a successful solution for many validators and RPC providers. The team also communicated that a fix had been identified and was being rolled out to all validators and service providers. The finality gadget in Heimdall, Polygon's consensus engine, was identified as the component not producing new milestones, leading to the delay until checkpoints were posted on Ethereum.
Ongoing Efforts for Full Recovery
Polygon's engineering team is collaborating closely with infrastructure providers to accelerate debugging efforts and restore full functionality. The team assured users that the incident did not affect core chain operations and expressed confidence in a swift recovery. The disruption occurred shortly after the network completed its migration from the MATIC token to POL, which introduced native staking directly on Ethereum. The price of the POL token saw a minor dip of 4% amid the news of the node bug.
Sources
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Polygon Experiences Finality Disruption Due to Bor/Erigon Node Bug, Cointelegraph.
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POL Price Crashes 4% as Polygon Network Faces Node Bug, CryptoRank.
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Polygon Blockchain Stays Live but RPC Services Experience Outage, Crypto Economy.
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