- Layer-2 (L2) scaling solution for Ethereum Arbitrum halted transaction processing on June 7 due to a fault in the batch poster in its sequencer.
- The incident lasted only an hour and exposed the network’s vulnerability to single pipeline faults.
Arbitrum, a prominent layer 2 scaling solution for Ethereum, has recently announced a temporary halt to its processing capabilities due to the identification of a critical software bug.
This unexpected development has raised concerns within the Ethereum community and underscores the challenges associated with implementing and maintaining complex blockchain technologies.
On 7th june, Arbitrum discovered a severe software flaw in their system. As a preventive step, they quickly decided to halt all network processing activities. The problem affected transaction sequencing, potentially resulting in inconsistencies and erroneous outputs. Arbitrum responded quickly to reduce any potential hazards, recognising the potential impact on users and the integrity of the blockchain.
Arbitrum, which is functioning as a Layer 2 network, employs a batching mechanism to reduce the strain on the Ethereum main blockchain by combining transactions into a single batch before submitting them. This batching process is facilitated by a component known as the sequencer, responsible for gathering, ordering, and bundling the transactions onto the Ethereum network.
However, developers at Arbitrum recently discovered a bug within the sequencer’s code, rendering it unable to successfully batch and submit transactions onto the Ethereum main chain. Consequently, a temporary disruption occurred, leading to a delay in transaction confirmations on the main blockchain.
To clarify, the bug in the sequencer impeded its ability to execute the critical task of combining and forwarding transactions, causing a brief outage in the normal functioning of the system. This interruption resulted in a delay in transaction confirmations, affecting the overall efficiency and performance of the network during that time.
According to on-chain data, the Sequencer depleted its stock of Ether, the Ethereum-native money used to pay network transaction fees. With no Ether to pay for fees, the Sequencer was unable to send transactions to Ethereum, thereby putting Arbitrum to a halt.
According to a statement made by “eli_defi,” the community lead of the Arbitrum Foundation, the software bug resulted in network stress due to a significant backlog of transactions that were not posted on the blockchain. However, a solution to the issue was promptly deployed, and the network has been functioning correctly since then.
Recently, the Arbitrum network has faced some challenges that have caused disruptions and raised concerns within the Ethereum community.
Back in March of 2023, Scammers were able to gain access to one of the channels on Arbitrum’s Discord server two days after the eagerly expected distribution of Arbitrum (ARB) tokens for early adopters and Arbitrum-based decentralised autonomous organisations (DAOs).