self hosting installation with docker compose langfuse-langfuse-web-1 restarting

[draeician]

I did the git clone, modified the .env for dev, added the ENCRYPT KYE from openssl, and issues the docker compose up -d command. Everything else starts but the web interface.

No pending migrations to apply.
error: failed to open database, "clickhouse://localhost:9000?username=clickhouse&password=clickhouse&database=default&x-multi-statement=true&x-migrations-table-engine=MergeTree": dial tcp [::1]:9000: connect: connection refused in line 0: SHOW TABLES FROM "default" LIKE 'schema_migrations'
Applying clickhouse migrations failed. This is mostly caused by the database being unavailable.
Exiting...

But everything else seems to be running.

8dc65f718363   langfuse/langfuse:3                  "dumb-init -- ./web/…"   About a minute ago   Restarting (1) 35 seconds ago                                                                                                    langfuse-langfuse-web-1
c1811c991cf8   langfuse/langfuse-worker:3           "dumb-init -- ./work…"   About a minute ago   Up About a minute               0.0.0.0:3030->3030/tcp, :::3030->3030/tcp                                                        langfuse-langfuse-worker-1
a79f63760b82   minio/minio                          "sh -c 'mkdir -p /da…"   About a minute ago   Up About a minute (healthy)     0.0.0.0:9090->9000/tcp, [::]:9090->9000/tcp, 0.0.0.0:9091->9001/tcp, [::]:9091->9001/tcp         minio
6b5a49e4801a   clickhouse/clickhouse-server         "/entrypoint.sh"         About a minute ago   Up About a minute (healthy)     0.0.0.0:8123->8123/tcp, :::8123->8123/tcp, 0.0.0.0:9000->9000/tcp, :::9000->9000/tcp, 9009/tcp   clickhouse
bc857bc20075   postgres:latest                      "docker-entrypoint.s…"   About a minute ago   Up About a minute (healthy)     0.0.0.0:5432->5432/tcp, :::5432->5432/tcp                                                        langfuse-postgres-1
5d37852240ad   redis:7                              "docker-entrypoint.s…"   About a minute ago   Up About a minute (healthy)     0.0.0.0:6379->6379/tcp, :::6379->6379/tcp                                                        langfuse-redis-1

[dosubot[bot]]

Hey @draeician! I'm here to help you with any bugs, questions, or contributions you have. Let's figure this out together!

I found a similar closed issue that might be relevant to your problem: bug: langfuse docker compose failing. This issue was resolved by a pull request that fixed the use of the correct golang-migrate in the build ^[1].

The error message you're encountering suggests that the langfuse-langfuse-web-1 container is unable to connect to the ClickHouse database. This could be due to a few reasons:

1. Database Connection URL: Ensure that the ClickHouse connection URL in your .env file is correctly configured. It should match the service name and port in your Docker Compose setup. For example:

   CLICKHOUSE_URL=http://clickhouse:8123
   CLICKHOUSE_MIGRATION_URL=clickhouse://clickhouse:9000
   

2. Environment Variables: Verify that the environment variables for ClickHouse are correctly set in your docker-compose file or .env file. They should include:

   CLICKHOUSE_USER: clickhouse
   CLICKHOUSE_PASSWORD: clickhouse

3. Service Health: Although the ClickHouse service appears to be healthy, ensure that it is fully initialized and ready to accept connections before the Langfuse web service attempts to connect. You might need to add a delay or retry mechanism in the startup script of the Langfuse web service.

4. Network Configuration: Check that the network configuration allows the Langfuse web service to communicate with the ClickHouse service. Ensure that both services are on the same Docker network.

5. Architecture Compatibility: If you are running on an ARM64 architecture, there might be compatibility issues with the Docker image. Switching to an AMD64 architecture could resolve this issue ^[1].

By addressing these points, you should be able to resolve the connection issue between the Langfuse web service and the ClickHouse database.

To continue talking to Dosu, mention @dosu.

---

^{Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Other}

[Steffen911]

Hey @draeician ,

The message indicates that the langfuse-web-1 container cannot reach clickhouse on localhost:9000. Usually, we use clickhouse as the hostname, because that allows automatic hostname resolution within the docker compose network. Did you overwrite the migration url intentionally?

If you want to make it work with your setup, you'd have to set the docker network mode to host to ensure that localhost resolves to your actual machine even from within the langfuse containers.