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Ethereum (ETH) 2.0 Devs Announce Zinken Testnet Launch After Spadina "Dress Rehearsal" Failed

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The shortest Ethereum (ETH) testnet so far failed to achieve integrity due to unexpected software issues. However, developers are optimistic about ETH2 testing progress

Wed, 09/30/2020 - 11:10
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Yesterday, Sept. 29, Spadinaa unique short-term Ethereum (ETH) testnetwas launched. Unfortunately, due to "critical peering issues" with one of the Ethereum clients, Spadina came to an inglorious end a few hours after it began.

Lack of finality, low participation, confusion

According to the official post-mortem released by Ethereum (ETH) devs from Prysmatic Labs, Spadina testnet operations went wrong from the very beginning. Very low node participation became immediately obvious during its inaugural epoch.

As covered by CryptoComes, during the first hour, the Spadina testnet dashboard indicated only 39 percent of active node operators out of a minimum of 66 percent required to finalize epochs properly.

👉 MUST READ Ethereum (ETH) 2.0 Spadina Testnet Launches with 170,000 Ethers (ETH) Depositedrelated article image

Thus, low participation resulted in a "lack of finality" since the system was not able to add new blocks to the testnet blockchain in a proper manner. This "lack" itself could be attributed to software issues with Prysm, one of ETH2's clients:

Prysm was not updated to properly support Spadina. Namely, we did not have a bootnode for the testnet in the alpha.26 release (which was the latest Prysm release at the time of Spadina genesis).

Also, Prysm-based wallets failed to deposit stakes since validator commands in CLI missed the "Spadina" flags. This immediately caused confusion in the community of testnet validators. Alarmed developers shared their concerns with the Ethereum Foundation and Prysm on Twitter, Discord and Telegram.

Welcome to Zinken

However, developers stress that this bug was not critical and did zero damage to consensus. Were it to be disclosed in the "real" network, it would be possible to fix it with a batch release.

Today, Sept. 30, Bitfly Ethereum development studio shared the details of a new testnet, Zinken. It will commence on Oct. 5 and will be another "dress rehearsal" before migration to Beacon Chain.

Thus, Ethereum (ETH) is still on track to roll out ETH2, the Proof-of-Stake iteration of the protocol. It will replace mining by staking and split the Ethereum (ETH) mainnet into an infrastructure of interconnected shards.

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