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n8n - 💡(How to fix) Fix Can't stop running workflows [1 comments, 2 participants]

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n8n-io/n8n#29665•Fetched 2026-05-05 06:03:15
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markvanitersonmarkvaniterson
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markvanitersonmarkvanitersonn8n-assistant[bot]n8n-assistant[bot]
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Error Message

Describe the problem/error/question

What is the error message (if any)?

  • error: all

Code Example

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.
RAW_BUFFERClick to expand / collapse
<!-- Please follow the template below. Skip the questions that are not relevant to you. -->

Describe the problem/error/question

There are two workflows which have been running for 6,5 hours which I can't get stopped.

What is the error message (if any)?

Problem stopping execution Timeout waiting for lock SqliteWriteConnectionMutex to become available

Please share your workflow/screenshots/recording

<img width="1399" height="1140" alt="Image" src="https://github.com/user-attachments/assets/2cb4d1ca-a1ab-4c0c-9e0a-f99ec0b5e678" /> 
(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.

Share the output returned by the last node

<!-- If you need help with data transformations, please also share your expected output. -->

Debug info

core

  • n8nVersion: 2.17.5
  • platform: docker (cloud)
  • nodeJsVersion: 24.14.1
  • nodeEnv: production
  • database: sqlite
  • executionMode: regular
  • concurrency: 20
  • license: enterprise (sandbox)

storage

  • success: all
  • error: all
  • progress: false
  • manual: true
  • binaryMode: filesystem

pruning

  • enabled: true
  • maxAge: 720 hours
  • maxCount: 25000 executions

client

  • userAgent: mozilla/5.0 (macintosh; intel mac os x 10_15_7) applewebkit/537.36 (khtml, like gecko) chrome/147.0.0.0 safari/537.36 edg/147.0.0.0
  • isTouchDevice: false

Generated at: 2026-05-04T06:54:00.764Z

extent analysis

TL;DR

The workflows can be stopped by checking the SqliteWriteConnectionMutex lock and potentially adjusting the database configuration or concurrency settings.

Guidance

  • Investigate the SqliteWriteConnectionMutex lock to determine why it's not becoming available, potentially due to a long-running query or high concurrency.
  • Check the concurrency setting (currently 20) and consider reducing it to alleviate potential contention on the database.
  • Review the pruning settings to ensure they are not causing excessive database activity, potentially blocking the mutex.
  • Consider checking the database for any long-running queries or transactions that may be holding the lock.

Notes

The provided information suggests a potential issue with database contention or locking, but without further details on the workflows or database activity, it's difficult to provide a more specific solution.

Recommendation

Apply workaround: Adjust the concurrency setting and monitor the workflows to see if it resolves the issue, as it may help alleviate the contention on the SqliteWriteConnectionMutex lock.

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n8n - 💡(How to fix) Fix Can't stop running workflows [1 comments, 2 participants]