ethereum/go-ethereum

Geth should handle genesis block with default syncmode

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#28,222 创建于 2023年9月28日

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 (4 评论) (0 反应) (0 负责人)Go (51,042 star) (21,913 fork)batch import
help wantedtype:bug

描述

System information

Geth version: v1.13.2

Expected behaviour

When running without specifying --syncmode=full (i.e. the default i.e. snap sync) geth should transition to full sync automatically for pre-genesis / genesis blocks.

Actual behaviour

Geth doesn't import the 1st block:

Ignoring payload while snap syncing number=1

Steps to reproduce the behaviour

Run geth without --syncmode=full on a new network

贡献者指南

技术栈
go
领域
backendinfrastructure
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
无
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
Investigate the sync mode logic in go ethereum, specifically how the default snap sync handles the genesis block. Look at the `eth/downloader` and `eth/sync` packages to understand the transition from snap to full sync. Check if there is a condition that prevents importing the first block when snap sync is active, and identify the required changes to auto detect genesis block and switch to full sync.