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How to migrate databases, files, etc. to separate databases, blob storage, etc.? #12273

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opened 2026-02-21 19:06:41 -05:00 by yindo · 3 comments
yindo commented 2026-02-21 19:06:41 -05:00
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Originally created by @AllenHu2024 on GitHub (Mar 28, 2025).

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  • [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:)
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1. Is this request related to a challenge you're experiencing? Tell me about your story.

How to migrate databases, files, etc. to separate databases, blob storage, etc.?
And if is it needed for other volumes? Such as Redis, Vector DB? How to migrate?

2. Additional context or comments

No response

3. Can you help us with this feature?

  • I am interested in contributing to this feature.
Originally created by @AllenHu2024 on GitHub (Mar 28, 2025). ### Self Checks - [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. ### 1. Is this request related to a challenge you're experiencing? Tell me about your story. How to migrate databases, files, etc. to separate databases, blob storage, etc.? And if is it needed for other volumes? Such as Redis, Vector DB? How to migrate? ### 2. Additional context or comments _No response_ ### 3. Can you help us with this feature? - [ ] I am interested in contributing to this feature.
yindo added the 🙋‍♂️ question label 2026-02-21 19:06:41 -05:00
yindo closed this issue 2026-02-21 19:06:41 -05:00
yindo commented 2026-02-21 19:06:42 -05:00
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@dosubot[bot] commented on GitHub (Mar 28, 2025):

To migrate data to separate databases or blob storage in Dify, you can use the tools and commands available within the codebase. For databases, Dify includes commands for migrating vector databases, such as the vdb_migrate command, which allows you to specify the scope of the migration (e.g., "knowledge", "annotation", or "all") [1].

For migrating data to a different database type, you need to modify the VECTOR_STORE environment variable in the .env file or docker-compose.yaml file to specify the target vector database. Supported databases include weaviate, qdrant, milvus, and others. After setting the desired database type, run the flask vdb-migrate command to perform the migration [2][3].

Regarding blob storage, while specific scripts or tools for migrating blob storage data were not found, Dify supports multiple storage types, including OpenDAL, Amazon S3, and others, which can be configured in the platform [4].

For Redis and Vector DB, specific migration practices were not detailed in the available information, but you may need to handle these separately based on your infrastructure and requirements.

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 28, 2025): <!-- Answer --> To migrate data to separate databases or blob storage in Dify, you can use the tools and commands available within the codebase. For databases, Dify includes commands for migrating vector databases, such as the `vdb_migrate` command, which allows you to specify the scope of the migration (e.g., "knowledge", "annotation", or "all") <sup>[[1]](https://github.com/langgenius/dify/blob/main/api/commands.py)</sup>. For migrating data to a different database type, you need to modify the `VECTOR_STORE` environment variable in the `.env` file or `docker-compose.yaml` file to specify the target vector database. Supported databases include `weaviate`, `qdrant`, `milvus`, and others. After setting the desired database type, run the `flask vdb-migrate` command to perform the migration <sup>[[2]](https://github.com/langgenius/dify-docs/blob/main/en/getting-started/install-self-hosted/install-faq.md)</sup><sup>[[3]](https://github.com/langgenius/dify/blob/main/docker/.env.example)</sup>. Regarding blob storage, while specific scripts or tools for migrating blob storage data were not found, Dify supports multiple storage types, including OpenDAL, Amazon S3, and others, which can be configured in the platform <sup>[[4]](https://github.com/langgenius/dify/blob/main/api/configs/middleware/__init__.py)</sup>. For Redis and Vector DB, specific migration practices were not detailed in the available information, but you may need to handle these separately based on your infrastructure and requirements. <!-- 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/c98163e2-66bc-411f-9aa6-a3a27ef45d3f?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/c98163e2-66bc-411f-9aa6-a3a27ef45d3f?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/c98163e2-66bc-411f-9aa6-a3a27ef45d3f?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/c98163e2-66bc-411f-9aa6-a3a27ef45d3f?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/c98163e2-66bc-411f-9aa6-a3a27ef45d3f?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/c98163e2-66bc-411f-9aa6-a3a27ef45d3f?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/c98163e2-66bc-411f-9aa6-a3a27ef45d3f?feedback_type=other)</sup>
yindo commented 2026-02-21 19:06:42 -05:00
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@AllenHu2024 commented on GitHub (Mar 28, 2025):

@dosu , how to migrate database data?(I am now using PostgreSQL image).

@AllenHu2024 commented on GitHub (Mar 28, 2025): @dosu , how to migrate database data?(I am now using PostgreSQL image).
yindo commented 2026-02-21 19:06:42 -05:00
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@dosubot[bot] commented on GitHub (Mar 28, 2025):

To migrate PostgreSQL database data in Dify, you can follow these steps:

  1. Modify PostgreSQL Configuration: Adjust the PostgreSQL settings in the docker-compose.middleware.yaml file. You can change environment variables such as POSTGRES_PASSWORD, POSTGRES_DB, and PGDATA, as well as command options like max_connections and shared_buffers to suit your migration needs [1].

  2. Perform Database Migration: Navigate to the "api" directory and run the following command to perform the database migration to the latest version:

    cd api
poetry run flask db upgrade

    This command will apply any pending migrations to your PostgreSQL database [2].

  3. Backup Data: Before migrating, ensure you have a backup of your PostgreSQL data. While specific backup practices weren't detailed, using tools like pg_dump can help you create a backup of your database.

  4. Use Migration Scripts: If there are specific migration scripts or configurations, such as those found in api/migrations/versions/64b051264f32_init.py, ensure they are applied during the migration process [3].

These steps should help you migrate your PostgreSQL database data within the Dify platform.

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 28, 2025): <!-- Answer --> To migrate PostgreSQL database data in Dify, you can follow these steps: 1. **Modify PostgreSQL Configuration**: Adjust the PostgreSQL settings in the `docker-compose.middleware.yaml` file. You can change environment variables such as `POSTGRES_PASSWORD`, `POSTGRES_DB`, and `PGDATA`, as well as command options like `max_connections` and `shared_buffers` to suit your migration needs <sup>[[1]](https://github.com/langgenius/dify/blob/main/docker/docker-compose.middleware.yaml)</sup>. 2. **Perform Database Migration**: Navigate to the "api" directory and run the following command to perform the database migration to the latest version: ```bash cd api poetry run flask db upgrade ``` This command will apply any pending migrations to your PostgreSQL database <sup>[[2]](https://github.com/langgenius/dify-docs/blob/main/en/getting-started/install-self-hosted/local-source-code.md)</sup>. 3. **Backup Data**: Before migrating, ensure you have a backup of your PostgreSQL data. While specific backup practices weren't detailed, using tools like `pg_dump` can help you create a backup of your database. 4. **Use Migration Scripts**: If there are specific migration scripts or configurations, such as those found in `api/migrations/versions/64b051264f32_init.py`, ensure they are applied during the migration process <sup>[[3]](https://github.com/langgenius/dify/blob/main/api/migrations/versions/64b051264f32_init.py)</sup>. These steps should help you migrate your PostgreSQL database data within the Dify platform. <!-- 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/2f41a681-a5b8-4e28-92ae-5e162c16019c?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/2f41a681-a5b8-4e28-92ae-5e162c16019c?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/2f41a681-a5b8-4e28-92ae-5e162c16019c?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/2f41a681-a5b8-4e28-92ae-5e162c16019c?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/2f41a681-a5b8-4e28-92ae-5e162c16019c?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/2f41a681-a5b8-4e28-92ae-5e162c16019c?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/2f41a681-a5b8-4e28-92ae-5e162c16019c?feedback_type=other)</sup>
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Reference: langgenius/dify#12273
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