apache/incubator-seata

register the branch when the xa transaction end

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#4,420 创建于 2022年3月1日

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 (3 评论) (0 反应) (1 负责人)Java (25,960 star) (8,878 fork)batch import
good first issuetask: help-wanted

描述

Why you need it?

Is your feature request related to a problem? Please describe in details 本地生成branchid 如果当前rm出现异常，肯定是走rollback，这样减少了一次rpc注册分支的开销，直接rollback即可 而rm正常提交的时候，会走end和prepare，当在end和prepare之间应该进行一次分支注册

How it could be?

A clear and concise description of what you want to happen. You can explain more about input of the feature, and output of it.

Other related information

Add any other context or screenshots about the feature request here.

贡献者指南

技术栈
java
领域
backenddatabase
议题类型
feature
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。
3-5 days
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。
needs maintainer response
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
JavaXA transactionsSeata distributed transactions
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。
20
研究方向
Investigate Seata's XA branch registration flow in the RM module, specifically how branch IDs are generated and registered. The issue proposes to register the branch only during the prepare phase after end, not on rollback. Examine the current implementation in `io.seata.rm` package, review existing tests and related PRs, and ensure backward compatibility. Discuss with maintainers to clarify the exact changes needed and any edge cases.