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Could not connect to Weaviate:Connection to Weaviate failed. #20282

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opened 2026-02-21 20:06:40 -05:00 by yindo · 2 comments
yindo commented 2026-02-21 20:06:40 -05:00
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Originally created by @dyuehang on GitHub (Nov 12, 2025).

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  • I have read the Contributing Guide and Language Policy.
  • 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, otherwise it will be closed.
  • 【中文用户 & Non English User】请使用英语提交，否则会被关闭 ：）
  • Please do not modify this template :) and fill in all the required fields.

Dify version

latest

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

Could not connect to Weaviate:Connection to Weaviate failed.

✔️ Expected Behavior

successfully upload and analyze the my files

❌ Actual Behavior

No response

Originally created by @dyuehang on GitHub (Nov 12, 2025). ### Self Checks - [x] I have read the [Contributing Guide](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) and [Language Policy](https://github.com/langgenius/dify/issues/1542). - [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, otherwise it will be closed. - [x] 【中文用户 & Non English User】请使用英语提交，否则会被关闭 ：） - [x] Please do not modify this template :) and fill in all the required fields. ### Dify version latest ### Cloud or Self Hosted Self Hosted (Docker) ### Steps to reproduce Could not connect to Weaviate:Connection to Weaviate failed. ### ✔️ Expected Behavior successfully upload and analyze the my files ### ❌ Actual Behavior _No response_
yindo added the 🌚 invalid label 2026-02-21 20:06:40 -05:00
yindo closed this issue 2026-02-21 20:06:40 -05:00
yindo commented 2026-02-21 20:06:40 -05:00
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@dosubot[bot] commented on GitHub (Nov 12, 2025):

Your issue is likely related to recent changes in Dify's Weaviate integration. The latest versions require both HTTP (8080) and gRPC (50051) ports to be exposed for Weaviate, and the new WEAVIATE_GRPC_ENDPOINT environment variable must be set (typically to grpc://weaviate:50051) in your Docker setup. Make sure your docker-compose.yaml exposes both ports and that your .env file includes the correct WEAVIATE_GRPC_ENDPOINT value. Also, confirm that your Weaviate Docker image is at least version 1.27.0 and the Python client is 4.17.0 or higher. For detailed migration and troubleshooting steps, see the Weaviate Migration Guide and recent pull requests that address these requirements. If you still see connection errors, check Docker logs for both Dify and Weaviate for more details.

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@dosubot[bot] commented on GitHub (Nov 12, 2025): <!-- Answer --> Your issue is likely related to recent changes in Dify's Weaviate integration. The latest versions require both HTTP (8080) and gRPC (50051) ports to be exposed for Weaviate, and the new WEAVIATE_GRPC_ENDPOINT environment variable must be set (typically to grpc://weaviate:50051) in your Docker setup. Make sure your docker-compose.yaml exposes both ports and that your .env file includes the correct WEAVIATE_GRPC_ENDPOINT value. Also, confirm that your Weaviate Docker image is at least version 1.27.0 and the Python client is 4.17.0 or higher. For detailed migration and troubleshooting steps, see the [Weaviate Migration Guide](https://github.com/langgenius/dify/blob/main/docs/weaviate/WEAVIATE_MIGRATION_GUIDE/README.md) and recent [pull requests](https://github.com/langgenius/dify/pull/27861) that address these requirements. If you still see connection errors, check Docker logs for both Dify and Weaviate for more details. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/977f6fb5-159a-44c1-aa7b-cbe063949200?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/977f6fb5-159a-44c1-aa7b-cbe063949200?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/977f6fb5-159a-44c1-aa7b-cbe063949200?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/977f6fb5-159a-44c1-aa7b-cbe063949200?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/977f6fb5-159a-44c1-aa7b-cbe063949200?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/977f6fb5-159a-44c1-aa7b-cbe063949200?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/977f6fb5-159a-44c1-aa7b-cbe063949200?feedback_type=other)</sup>&nbsp;&nbsp;[![Chat with Dosu](https://dosu.dev/dosu-chat-badge.svg)](https://app.dosu.dev/6088a4f4-073a-43f3-b3d4-4f06fb0c05a0/ask?utm_source=github)&nbsp;[![Join Discord](https://img.shields.io/badge/join-5865F2?logo=discord&logoColor=white&label=)](https://go.dosu.dev/discord-bot)&nbsp;[![Share on X](https://img.shields.io/badge/X-share-black)](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/langgenius/dify/issues/28130)
yindo commented 2026-02-21 20:06:40 -05:00
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@crazywoola commented on GitHub (Nov 12, 2025):

Please do not open duplicated questions.

@crazywoola commented on GitHub (Nov 12, 2025): Please do not open duplicated questions.
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