[PR #30251] fix: workflow incorrectly marked as completed while nodes are still executing #32746

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opened 2026-02-21 20:51:59 -05:00 by yindo · 0 comments
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Original Pull Request: https://github.com/langgenius/dify/pull/30251

State: closed
Merged: Yes


Important

  1. Make sure you have read our contribution guidelines
  2. Ensure there is an associated issue and you have been assigned to it
  3. Use the correct syntax to link this PR: Fixes #<issue number>.

Fixes #30195
Fixes #29316

Summary

When the last upstream node is skipped, the downstream node is added only to _ready_queue and not to _executing_nodes.
After the worker thread consumes _ready_queue, both _ready_queue and _executing_nodes become empty.
As a result, the _dispatcher_loop exits the while loop incorrectly.

Can reproduct use thie DSL: CheckSkip.yml

Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly.
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/30251 **State:** closed **Merged:** Yes --- > [!IMPORTANT] > > 1. Make sure you have read our [contribution guidelines](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) > 1. Ensure there is an associated issue and you have been assigned to it > 1. Use the correct syntax to link this PR: `Fixes #<issue number>`. Fixes #30195 Fixes #29316 ## Summary <!-- Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change. --> When the last upstream node is skipped, the downstream node is added only to `_ready_queue` and not to `_executing_nodes`. After the worker thread consumes `_ready_queue`, both `_ready_queue` and `_executing_nodes` become empty. As a result, the `_dispatcher_loop` exits the while loop incorrectly. Can reproduct use thie DSL: [CheckSkip.yml](https://github.com/user-attachments/files/24355224/CheckSkip.yml) ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly. - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:51:59 -05:00
yindo closed this issue 2026-02-21 20:51:59 -05:00
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Reference: langgenius/dify#32746