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After the stream output is stuck, spit out data at one time #35

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opened 2026-02-16 10:17:49 -05:00 by yindo · 10 comments
yindo commented 2026-02-16 10:17:49 -05:00
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Originally created by @teasong on GitHub (Mar 3, 2025).

Self Checks

  • This is only for bug report, if you would like to ask a question, please head to Discussions.
  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
  • [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:）
  • Please do not modify this template :) and fill in all the required fields.

Dify version

0.15.3

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

Image

Image

✔️ Expected Behavior

data one by one

❌ Actual Behavior

spit out data at one time

Originally created by @teasong on GitHub (Mar 3, 2025). ### Self Checks - [x] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report (我已阅读并同意 [Language Policy](https://github.com/langgenius/dify/issues/1542)). - [x] [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:） - [x] Please do not modify this template :) and fill in all the required fields. ### Dify version 0.15.3 ### Cloud or Self Hosted Self Hosted (Docker) ### Steps to reproduce ![Image](https://github.com/user-attachments/assets/5bcd9b0f-a7bb-4555-8cf5-16e758c55cff) ![Image](https://github.com/user-attachments/assets/3b71fd81-881f-464b-8e19-114014e8a2e8) ### ✔️ Expected Behavior data one by one ### ❌ Actual Behavior spit out data at one time
yindo added the good first issue label 2026-02-16 10:17:49 -05:00
yindo closed this issue 2026-02-16 10:17:49 -05:00
yindo commented 2026-02-16 10:17:49 -05:00
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@dosubot[bot] commented on GitHub (Mar 3, 2025):

Hello @teasong! 👋 I'm here to help you with bugs, questions, and more while you wait for a human maintainer. Let's squash those bugs together!

In Dify version 0.15.3, when self-hosted using Docker, workflows that include conditional branches, such as If-Else nodes before an LLM node, cannot stream output and instead switch to a blocking response. This behavior is expected and confirmed by the project maintainers. To address this issue, you can either wait for a future official Docker release that includes a fix or manually update the code in base_stream_processor.py within the Docker container and restart the container [1][2].

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

@dosubot[bot] commented on GitHub (Mar 3, 2025): <!-- Greeting --> Hello @teasong! 👋 I'm here to help you with bugs, questions, and more while you wait for a human maintainer. Let's squash those bugs together! <!-- Answer --> In Dify version 0.15.3, when self-hosted using Docker, workflows that include conditional branches, such as If-Else nodes before an LLM node, cannot stream output and instead switch to a blocking response. This behavior is expected and confirmed by the project maintainers. To address this issue, you can either wait for a future official Docker release that includes a fix or manually update the code in `base_stream_processor.py` within the Docker container and restart the container <sup>[[1]](https://github.com/langgenius/dify/issues/14010)</sup><sup>[[2]](https://github.com/langgenius/dify/issues/12362)</sup>. <!-- Dosu Comment Footer --> *To continue talking to [Dosu](https://dosu.dev), mention @dosu.* --- <sup>Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/3b26b4b6-2b21-4843-a8d2-b3ddaf9493c2?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/3b26b4b6-2b21-4843-a8d2-b3ddaf9493c2?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/3b26b4b6-2b21-4843-a8d2-b3ddaf9493c2?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/3b26b4b6-2b21-4843-a8d2-b3ddaf9493c2?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/3b26b4b6-2b21-4843-a8d2-b3ddaf9493c2?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/3b26b4b6-2b21-4843-a8d2-b3ddaf9493c2?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/3b26b4b6-2b21-4843-a8d2-b3ddaf9493c2?feedback_type=other)</sup>
yindo commented 2026-02-16 10:17:49 -05:00
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@crazywoola commented on GitHub (Mar 3, 2025):

Judging by the response content, it is a stream event.

@crazywoola commented on GitHub (Mar 3, 2025): Judging by the response content, it is a stream event.
yindo commented 2026-02-16 10:17:49 -05:00
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@teasong commented on GitHub (Mar 3, 2025):

When he thinks, he outputs slowly, but when he comes to real data, he spits out all the data at once.like the pic 2,all data in red circle

@teasong commented on GitHub (Mar 3, 2025): When he thinks, he outputs slowly, but when he comes to real data, he spits out all the data at once.like the pic 2,all data in red circle
yindo commented 2026-02-16 10:17:49 -05:00
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@cuckootan commented on GitHub (Mar 14, 2025):

same question.

Image
@cuckootan commented on GitHub (Mar 14, 2025): same question. <img width="1079" alt="Image" src="https://github.com/user-attachments/assets/95215e18-a4a1-4f6f-bd0e-fd24959f1d9e" />
yindo commented 2026-02-16 10:17:49 -05:00
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@cuckootan commented on GitHub (Mar 14, 2025):

0.15.3

@cuckootan commented on GitHub (Mar 14, 2025): 0.15.3
yindo commented 2026-02-16 10:17:50 -05:00
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@cowcomic commented on GitHub (Mar 17, 2025):

1.0.1 There is also the same problem

The ollama model is configured to support function calls but still doesn't work

Use the OpenAI-API-compatible mode to connect to ollama, configured Function calling=tool call，Stream function calling=support, but it still doesn't work

@cowcomic commented on GitHub (Mar 17, 2025): 1.0.1 There is also the same problem The ollama model is configured to support function calls but still doesn't work Use the OpenAI-API-compatible mode to connect to ollama, configured Function calling=tool call，Stream function calling=support, but it still doesn't work
yindo commented 2026-02-16 10:17:50 -05:00
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@ml4165837 commented on GitHub (Apr 23, 2025):

Surprisingly, it hasn't been resolved after crossing three versions

@ml4165837 commented on GitHub (Apr 23, 2025): Surprisingly, it hasn't been resolved after crossing three versions
yindo commented 2026-02-16 10:17:50 -05:00
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@alterxyz commented on GitHub (Jun 17, 2025):

It seems like this only happens with certain LLMs, not all. We might have to look into those model plugin one by one.

@alterxyz commented on GitHub (Jun 17, 2025): It seems like this only happens with certain LLMs, not all. We might have to look into those model plugin one by one.
yindo commented 2026-02-16 10:17:50 -05:00
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@alterxyz commented on GitHub (Jun 17, 2025):

Still exist like DeepSeek (Provider) on V1.x

@alterxyz commented on GitHub (Jun 17, 2025): Still exist like DeepSeek (Provider) on V1.x
yindo commented 2026-02-16 10:17:50 -05:00
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@dosubot[bot] commented on GitHub (Aug 21, 2025):

Hi, @teasong. I'm Dosu (https://dosu.dev), and I'm helping the dify-official-plugins team manage their backlog and am marking this issue as stale.

Issue Summary:

  • You reported that in version 0.15.3 (self-hosted via Docker), stream output gets stuck and then releases all data at once instead of incrementally.
  • It was clarified that this behavior is expected when workflows include conditional branches before an LLM node, with a suggested manual code update as a workaround.
  • Other users confirmed the issue persists in later versions (including 1.0.1) and with certain LLMs or models like Ollama and DeepSeek.
  • Maintainers acknowledge the problem may be model-specific and requires further investigation.

Next Steps:

  • Please let me know if this issue is still relevant with the latest version of dify-official-plugins by commenting here to keep the discussion open.
  • Otherwise, this issue will be automatically closed in 5 days.

Thank you for your understanding and contribution!

@dosubot[bot] commented on GitHub (Aug 21, 2025): Hi, @teasong. I'm Dosu (https://dosu.dev), and I'm helping the dify-official-plugins team manage their backlog and am marking this issue as stale. **Issue Summary:** - You reported that in version 0.15.3 (self-hosted via Docker), stream output gets stuck and then releases all data at once instead of incrementally. - It was clarified that this behavior is expected when workflows include conditional branches before an LLM node, with a suggested manual code update as a workaround. - Other users confirmed the issue persists in later versions (including 1.0.1) and with certain LLMs or models like Ollama and DeepSeek. - Maintainers acknowledge the problem may be model-specific and requires further investigation. **Next Steps:** - Please let me know if this issue is still relevant with the latest version of dify-official-plugins by commenting here to keep the discussion open. - Otherwise, this issue will be automatically closed in 5 days. Thank you for your understanding and contribution!
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Reference: langgenius/dify-official-plugins#35
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