Staking pool operators (SPO) and Cardano users reported that at least half of the network’s nodes went offline briefly over the weekend.
According to a January 22 message shared on the SPO Telegram channel from Input Output Global, the engineering and research fintech behind the Cardano blockchain, an anomaly caused 50% of Cardano nodes to disconnect and restart.
Last night during the anomaly on the #Cardano network, the whole network did not go down. There was a short period of degradation. Most of the affected nodes recovered gracefully. No need to restart network. pic.twitter.com/FupQXk2otV
— Rick McCracken DIGI (@RichardMcCrackn) January 22, 2023
Last night during the anomaly on the #Cardano network, the entire network did not go down. There was a short period of degradation. The most affected nodes recovered gracefully. No need to restart network. pic.twitter.com/FupQXk2otV- Rick McCracken DIGI (@RichardMcCrackn) January 22, 2023
“It appears to have been triggered by a transient anomaly that created two reactions in the node, some disconnecting, others throwing an exception and restarting. the post reads, explaining the sudden interruption.
Despite a momentary degradation, the Cardano network recovered without outside intervention. As explained in the post, “such transient issues” were taken into account in node and consensus design and “the systems behaved exactly as expected.”
During the anomaly that occurred between blocks 8300569 and 8300570, block production would continue, but it would be delayed for a few minutes and “the impact was low, similar to the delays that occur during normal operations.”
“Most nodes were recovered automatically, depending on the selected SPO. »
As of this writing, the root cause of the anomaly and the resulting node disconnections and rearrangements is still under investigation.
“We are currently investigating the root cause of this abnormal behavior and are implementing additional logging measures alongside our regular monitoring procedures. “says the official announcement.
Also read: Cardano will launch a new stable algorithmic coin in 2023
Tom Stokes, co-founder of Shark Node and Cardano SPO, reported in a January 22nd post that more than half of the listed nodes were affected.
He also shared a graph showing how network synchronization went from 100% to just over 40% for over 300 nodes.
—Tom Stokes (@eUTxO_pro) January 22, 2023
A few hours ago, more than half of all #Cardano nodes went offline. That’s why decentralization is important. pic.twitter.com/NXDVyKy8ep — Tom Stokes (@eUTxO_pro) January 22, 2023
According to the Stokes chart, network synchronization recovered to about 87% after the fall, but did not immediately return to the previous level of 100%.
FS is another reported similar issues at Stoke in a January 22 post, but said: “Some FS have seen no impact. »
“Others have seen relays and MPs restarting. FS, Devs and IOG are debugging on Discord. There is no real reason yet. “, they said.