After a 4-hour downtime, the Helium network team fixes the consensus fault


Token transfers and miner incentives were impacted by the network outage, which lasted over four hours due to a Consensus Group failure, but not devices.
On July 11, a software upgrade that affected validators resulted in validator outages that lasted for roughly 4 hours and delayed transaction finality on the Internet of Things (IoT) blockchain Helium.

Devices sending data across the network were unaffected by the outage, although token transfers and miner payouts were delayed. By moving the blockchain ahead by one block, the team was able to fix the problem and resume operations.

According to a status report, the Consensus Group halted generating blocks at block height 1435692 on the Helium (HNT) blockchain at 10:20 AM EDT.

Token transfers and the creation of new blocks were both impossible without network consensus.
With the use of actual radio hotspots, the IoT network Helium enables users to access their devices from any location with radio reception. A Consensus Group on the Helium network is made up of 43 validator nodes that are selected at random and arranged at set intervals to provide network consensus.

Two factors led validators to stop forging consensus on the network, according to Helium developers’ post-mortem on the incident.
First, a bug in a validators’ software upgrade from July 8 led to the issue. Support for the 5G Mobile subnetwork and associated MOBILE token was included in the v1.12.3 upgrade.

There was also a “local network disruption” to blame. The Helium moderator “Digerati” noted in the project’s Discord channel that a significant portion of the Consensus Group at the time of the outage was running on the same Amazon Web Service (AWS) network, which had technical issues.

It is possible to improve computer networks like Helium by using AWS, a worldwide cloud computing and data storage provider.
The failure of an auto-skip function, which was supposed to automatically select a new Consensus Group, made the issue worse. According to the developers, “the auto-skip functionality did not function as planned due to a known fault.” What the researchers meant by the “known problem,” however, is unclear.

Although the network was unable to select a new Consensus Group, it was built with the capacity to forward the blockchain one block “to minimize circumstances like these,” the team stated in a 10:56 am ET release.
New block production with block number 1435693 began at 1:45 PM ET. The company said it delivered a fresh software upgrade after closely collaborating with validator operators to make sure they were in sync.

According to CoinGecko, HNT is currently trading at $8.76, down 4.1 percent over the last 24 hours. From its all-time high in November 2021, it has fallen by 84%.