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Polygon Network: Network failure after upgrade



 Layer-2 Ethereum scaling solution Polygon hasn’t produced a new block for 11 hours. The developers say a technical upgrade of the network was the reason for this.


At 16:20 UTC on Thursday , the developers of the Polygon network informed users on their forums that from around 17:50 UTC there will likely be an outage due to maintenance work on one of the three layers of the network. A recent upgrade reportedly broke the network's consensus mechanism.


"We suspect that there was a bug in the upgrade that compromised the consensus and resulted in different Heimdall validators working on different versions of the chain. As a result, a 2/3 consensus could not be achieved."

As announced, the outage began at approximately 17:54 UTC.


The Polygon team reported at approximately 1:30 UTC that they are still working on fixing the issue and that a hotfix has been deployed to make block crafting possible again. At the time of writing, the network was fully online again.


The team also consistently assured users that their money and data were safe on the chain.



Network outage at Polygon lasted 11 hours.

Polygon users understood this because the outage was announced in advance. But after six hours, there were already first signs of impatience in the community. Many users were concerned about the long downtime. 



Other people said their job or crypto business would suffer from the outage. Twitter user @Miklos211 commented :


"I can literally work. Could you please tell us when we can expect the network to be working again?"

The polygon network consists of three layers. Each of them has a specific task. Smart contracts run on the Ethereum layer and the Bor layer helps create blocks. The problem lay in the Heimdall layer.


Heimdall is a set of Proof-of-Stake (PoS) nodes that help the network reach consensus. This is how Polygon was unable to reach a network consensus.


The last major bug on Polygon, which threatened $24 billion in user funds , was fixed without issue in late 2021.


In this regard, Polygon recently partnered with music NFT marketplace TokenTraxx to support the marketplace in the Polygon ecosystem. Musicians can use TokenTraxx to tokenize their works and sell them as NFTs.

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