apache/incubator-seata

register the branch when the xa transaction end

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#4,420 opened on Mar 1, 2022

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 (3 comments) (0 reactions) (1 assignee)Java (25,960 stars) (8,878 forks)batch import
good first issuetask: help-wanted

Description

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.

Contributor guide

Tech stack
java
Domain
backenddatabase
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
needs maintainer response
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
JavaXA transactionsSeata distributed transactions
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
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.
register the branch when the xa transaction end · apache/incubator-seata#4420 | Good First Issue