dYdX Chain Back Online After Planned Upgrade Causes Disruption

• The incorrect implementation of a bug patch in the Cosmos IAVL library was to blame for this. 
• The dYdX Chain was able to address a software issue and have block production back up.

The dYdX perpetual futures exchange’s underlying blockchain, the dYdX Chain, went down early Monday. Due to a planned upgrade to version 4 of the chain, there was a disruption that lasted more than nine hours.

There was an unanticipated stop in operations because the upgrading procedure hit a snag. The incorrect implementation of a bug patch in the Cosmos IAVL library was to blame for this. As dYdX’s DeFi technical project head Dimitar Petkov said, this led to corruption of the network state during the update.

Collaborative Effort

In spite of the shutdown, the dYdX Chain was able to address a software issue and have block production back up and running by Monday afternoon. Validators worked together to apply the fix and restart the network, which was necessary for the restoration procedure. In order to maintain compatibility with earlier versions of the blockchain, dYdX guaranteed that the fix would not result in a state-breaking change.

It is worth noting that trading activity was not interrupted by the interruption since the dYdX’s perpetual futures DEX remained functioning. The trading platform had a number of small upgrades with the Chain’s version 4 upgrade, and a new feature let the community vote out bad validators in governance.

Thanks to last week’s near-unanimous vote, the upgrade has the full backing of the community. Regardless of this backing, Monday’s outage was the realization of a prediction made in the upgrade’s planned maintenance report: the possibility of interruptions.

The Chain is an app chain developed utilizing Cosmos technology and tailored to the dYdX derivatives trading platform. One of the many improvements made to the chain since it entered beta in November is the ability for liquid staking of its native dYdX token.

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