Developer of Cardano IOG Describes Why 60% Of All Nodes Gone Down

On Saturday evening the Cardano blockchain encountered an anomaly that caused around 60% of all active nodes to be down for a brief period of time. Even though the blockchain did not halt, there were delays in transactions.

Tom Stokes, co-founder and chief operating officer of Node Shark and manager of an ADA stake pool, was one of the first to disclose the problem. He wrote: “Over half of all Cardano nodes fell down a few hours ago. 

The network recovered to about 87% within a short amount of time. However, the incident’s cause remained unclear for quite some time. Charles Hoskinson, the creator of Cardano, has not reacted as of press time.

The development firm behind Cardano, Input Output Global (IOG), explained the issue in a statement. The organization said that a problem caused over fifty percent of nodes to disconnect and restart.

“This impacted relay nodes and block-producing nodes, but not edge nodes,” said IOG, which went on to explain that this seems to have been caused by a transient abnormality that prompted one of two responses in the node: some separated from a peer, while others threw an exception and resumed.

According to the Cardano creator, this is not a cause for worry. In designing the Cardano node and consensus, such temporary concerns (even if they impacted all nodes) were taken into account. The systems performed just as anticipated.

According to the corporation, the effect was consequently rather minimal – “similar to the delays that occur during regular operations and are often seen around epoch borders.”

Depending on the selection of the staking pool, the majority of nodes recover automatically without human involvement and resume. The corporation commits to exploring the source of the anomaly further and to undertake extra monitoring logging methods in addition to “normal” monitoring processes.

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