Cardano Blockchain Network Experiences Brief Shutdown As Half Of Nodes Go Offline

The Cardano ADA/USD blockchain network experienced an unexpected anomaly over the weekend, causing around half of the network's nodes to briefly go offline.

According to a statement by Input Output Global, the engineering and research fintech company behind the Cardano blockchain, the anomaly caused a disconnection and restart of the nodes. More than half of the listed nodes were affected, according to Node Shark co-founder Tom Stokes, a Cardano SPO.

He also shared a chart showing the network sync falling from 100% to slightly above 40% for over 300 reporting nodes.

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A few hours ago over half of all #Cardano nodes went offline. This is why decentralization matters. pic.twitter.com/NXDVyKy8ep

— Tom Stokes (@eUTxO_pro) January 22, 2023

“This appears to have been triggered by a transient anomaly causing two reactions in the node, some disconnected from a peer, others threw an exception and restarted,” said the Input Output Global statement on Telegram, further explaining the sudden disruption.

Despite the disruption, the network recovered quickly, and block production continued, though at a slower pace for a few minutes.

The Input Output Global statement assured that the systems had behaved as expected and that such transient issues were considered in the node design and consensus.

The statement also added that “the impact was low, akin to the delays that occur during normal operations.”

The root cause of the anomaly is still being investigated by the company and further logging measures are being implemented alongside regular monitoring procedures.

Some SPOs reported no impact while others had relays and block producers restart.

The company and the SPOs are working together to debug and identify the root cause of the problem.

Last night during the anomaly on the #Cardano network, the entire network did not go down. There was a brief period of degradation. Most nodes impacted had gracefully recovered. No network restart was required. pic.twitter.com/FupQXk2otV

— Rick McCracken DIGI (@RichardMcCrackn) January 22, 2023

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