Skip to content

docs(core/txpool): notice Clear is not for production #31567#2184

Open
gzliudan wants to merge 2 commits intoXinFinOrg:dev-upgradefrom
gzliudan:txpool-clear-comment
Open

docs(core/txpool): notice Clear is not for production #31567#2184
gzliudan wants to merge 2 commits intoXinFinOrg:dev-upgradefrom
gzliudan:txpool-clear-comment

Conversation

@gzliudan
Copy link
Collaborator

Proposed changes

Ref: ethereum#31567

Types of changes

What types of changes does your code introduce to XDC network?
Put an in the boxes that apply

  • build: Changes that affect the build system or external dependencies
  • ci: Changes to CI configuration files and scripts
  • chore: Changes that don't change source code or tests
  • docs: Documentation only changes
  • feat: A new feature
  • fix: A bug fix
  • perf: A code change that improves performance
  • refactor: A code change that neither fixes a bug nor adds a feature
  • revert: Revert something
  • style: Changes that do not affect the meaning of the code
  • test: Adding missing tests or correcting existing tests

Impacted Components

Which parts of the codebase does this PR touch?
Put an in the boxes that apply

  • Consensus
  • Account
  • Network
  • Geth
  • Smart Contract
  • External components
  • Not sure (Please specify below)

Checklist

Put an in the boxes once you have confirmed below actions (or provide reasons on not doing so) that

  • This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
  • Tested on a private network from the genesis block and monitored the chain operating correctly for multiple epochs.
  • Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
  • Tested the backwards compatibility.
  • Tested with XDC nodes running this version co-exist with those running the previous version.
  • Relevant documentation has been updated as part of this PR
  • N/A

…thereum#28837

Improve txpool loop synchronization around background resets.

This change:
- adds an explicit termination channel to signal pool shutdown
- tracks forced-reset intent and a waiter channel inside the reset loop
- ensures reset waiters are notified on completion or on pool termination
- allows an explicit sync request path to trigger an additional reset round when needed

Scope is limited to internal txpool concurrency control in core/txpool/txpool.go, with no protocol or RPC behavior change.
Copilot AI review requested due to automatic review settings March 13, 2026 10:20
@coderabbitai
Copy link

coderabbitai bot commented Mar 13, 2026

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d21c9a28-7cd6-43e5-9689-0edffedf33fe

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

  • 🔍 Trigger review
✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
📝 Coding Plan
  • Generate coding plan for human review comments

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

Comment @coderabbitai help to get the list of available commands and usage tips.

Copy link

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

This PR aims to clarify (and enforce via comments/API) that certain txpool maintenance operations are intended for tests/simulator usage and can be unsafe in production contexts.

Changes:

  • Adds a TxPool termination signal (term) and a test/simulator synchronization mechanism (sync) plus a new exported TxPool.Sync() helper.
  • Extends the txpool event loop to support “forced reset” requests and notify a waiting caller when the reset work has completed.
  • Updates LegacyPool comments to warn that Clear() is not appropriate for production/live usage.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File Description
core/txpool/txpool.go Introduces new channels/Sync API and modifies the reset loop to support forced deterministic resets (test/simulator).
core/txpool/legacypool/legacypool.go Documentation updates: clarifies Add(..., sync) semantics and adds a production-safety warning to Clear().

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

// Sync is a helper method for unit tests or simulator runs where the chain events
// are arriving in quick succession, without any time in between them to run the
// internal background reset operations. This method will run an explicit reset
// operation to ensure the pool stabilises, thus avoiding flakey behavior.
Comment on lines +145 to +151
// Notify the live reset waiter without blocking if the txpool is closed.
defer func() {
if resetWaiter != nil {
select {
case resetWaiter <- errors.New("pool already terminated"):
default:
}
Comment on lines +442 to +449
// Sync is a helper method for unit tests or simulator runs where the chain events
// are arriving in quick succession, without any time in between them to run the
// internal background reset operations. This method will run an explicit reset
// operation to ensure the pool stabilises, thus avoiding flakey behavior.
//
// Note, this method is only used for testing and is susceptible to DoS vectors.
// In production code, the pool is meant to reset on a separate thread.
func (p *TxPool) Sync() error {
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants