Because of such a sequencer outage, the Arbitrum Network has ceased.

The Arbitrum network, an Ethereum L2 (Layer 2) rollup, came into certain problems that plagued the generation of transactions and transaction confirmation to come to a halt. And per the Arbitrum group, the event was caused by downtime with its sequencer, a unique node that maintains transaction order, which rendered the system inaccessible for around 7 minutes.
7 Hour of Arbitrum Booths

On January 9, the Arbitrum network, an optimistic scaling rollup for the Ethereum network, went entirely down, preventing customers from transacting for around 7 hrs.
Customers have been told by the Arbitrum team that the problems were caused by a hardware failure on their main sequencer node, which caused the connection to halt. This sequencing is a “specifically equipped complete network, that is granted restricted ability to regulate the sequencing of operations,” as per Arbitrum documentation.

This incident was originally reported on the rollup’s Twitter account, which clarified that they were having a brief outage then all money was secure.

Off-chain Laboratories indicated in a follow autopsy that there were other factors that led towards the rollup’s current state, stating:
Although they usually maintain redundancy in place to allow a backup Sequencer to take control effortlessly, they did not take effect this morning due to a software upgrade in progress. As a result, the Sequencer has ceased to accept new operations.

Aggregate functions Planet’s Issues
It isn’t the first time Arbitrum has had issues with its channel’s operations. When the Sequencer failed again in September, the service was hit with the same problem. The system was rendered inoperable for 45 minutes as a result of this. Off-chain Technologies reported at the beginning:

The outage was caused by a problem that caused the Controller. the controller to become stuck whenever it handled a transaction in a short period of time.
A problem has been recognized, and a solution has indeed been implemented.

While Ethereum has focused on scalability with this sort of compromise, some users have been critical of the concept. With the transfer of DeFi protocols from Ethereum, these L2 solutions are “losing market share to L1’s in recent months,” as per Delta Media.

Despite this, Arbitrum, which launched on mainnet in August, is the most popular rollup solution in the Ethereum community in terms of total value locked (TVL). According to data from L2beat, an Ethereum L2 statistics service, the solution has a total value of about $2.62 billion.

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