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[GH-ISSUE #23326] issue: High Latency in Message Dispatch When Enabling Tools/Skills in Open WebUI #35478

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opened 2026-04-25 09:41:29 -05:00 by GiteaMirror · 1 comment
GiteaMirror commented 2026-04-25 09:41:29 -05:00
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Originally created by @Doan-IT on GitHub (Apr 1, 2026).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/23326

Check Existing Issues

  • I have searched for any existing and/or related issues.
  • I have searched for any existing and/or related discussions.
  • I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!).
  • I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

0.8.10

Ollama Version (if applicable)

No response

Operating System

Linux

Browser (if applicable)

No response

Confirmation

  • I have read and followed all instructions in README.md.
  • I am using the latest version of both Open WebUI and Ollama.
  • I have included the browser console logs.
  • I have included the Docker container logs.
  • I have provided every relevant configuration, setting, and environment variable used in my setup.
  • I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
  • I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
  • Start with the initial platform/version/OS and dependencies used,
  • Specify exact install/launch/configure commands,
  • List URLs visited, user input (incl. example values/emails/passwords if needed),
  • Describe all options and toggles enabled or changed,
  • Include any files or environmental changes,
  • Identify the expected and actual result at each stage,
  • Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

While using the vLLM backend, chat messages are typically transmitted instantly.

Actual Behavior

However, when the "Tools" or "Skills" functionality is activated for a model, there is a noticeable 2-3 second hang/delay before the message is successfully sent from the UI to the backend.

Steps to Reproduce

_

Logs & Screenshots

_

Additional Information

No response

Originally created by @Doan-IT on GitHub (Apr 1, 2026). Original GitHub issue: https://github.com/open-webui/open-webui/issues/23326 ### Check Existing Issues - [x] I have searched for any existing and/or related issues. - [x] I have searched for any existing and/or related discussions. - [x] I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!). - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version 0.8.10 ### Ollama Version (if applicable) _No response_ ### Operating System Linux ### Browser (if applicable) _No response_ ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior While using the vLLM backend, chat messages are typically transmitted instantly. ### Actual Behavior However, when the "Tools" or "Skills" functionality is activated for a model, there is a noticeable 2-3 second hang/delay before the message is successfully sent from the UI to the backend. ### Steps to Reproduce _ ### Logs & Screenshots _ ### Additional Information _No response_
GiteaMirror added the bug label 2026-04-25 09:41:29 -05:00
GiteaMirror commented 2026-04-25 09:41:31 -05:00
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@tjbck commented on GitHub (Apr 2, 2026):

Function calling mode should be set to native most of the time.

<!-- gh-comment-id:4175155751 --> @tjbck commented on GitHub (Apr 2, 2026): Function calling mode should be set to native most of the time.
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Reference: github-starred/open-webui#35478
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