On 22 January, a fault between blocks 8,300,569 and 8,300,570 triggered the outage and restart of about 50% of Cardano’s nodes, according to Input Output Global (IOG), the developer behind the project.
The incident affected relays and block producers. Edge nodes, apparently, were not affected, the developers clarified.
According to them, the outage was caused by a lurking issue, which led to one of two responses: some nodes disconnected from peers (peers), others rebooted.
IOG engineers noted that they had anticipated the possibility of such errors in the design.
“The systems behaved as expected,” they stressed.
The developers stated that block production was affected “insignificantly”, but part of the network did not synchronize until most of the affected nodes were rebooted.
“The impact was modest, similar to delays that occur during normal operations and are often observed at epoch boundaries. Most nodes recovered automatically, depending on the type of software deployed by the operator of the staking pool,” said IOG specialists.
As reported in September, the Vasil upgrade was activated on the Cardano network.
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