dosubot[bot]
commented
2 days ago To resolve the intermittent "Internal Server Error" messages caused by psycopg2.OperationalError in your self-hosted Dify version 0.6.11 setup using PostgreSQL-HA and Milvus, you can follow these steps:
-
Check PostgreSQL Connection Settings: Ensure that the PostgreSQL connection settings in your
docker-compose.yamlfile are correct and consistent across all services that connect to the database. Verify theDB_HOST,DB_PORT,DB_USERNAME,DB_PASSWORD, andDB_DATABASEvalues. -
Increase PostgreSQL Connection Timeout: Sometimes, increasing the connection timeout can help mitigate intermittent connection issues. You can add the
connect_timeoutparameter to your PostgreSQL connection string. -
Enable PostgreSQL Health Checks: Ensure that the PostgreSQL service has proper health checks configured to restart the service if it becomes unresponsive.
-
Check Resource Limits: Ensure that your PostgreSQL instance has sufficient resources (CPU, memory, disk I/O) to handle the load. You may need to adjust resource limits or scale your PostgreSQL-HA setup.
-
Review Logs: Check the logs of your PostgreSQL and Dify services for any error messages or warnings that could provide more insight into the cause of the
psycopg2.OperationalError.
Here is an example of how you can adjust the PostgreSQL connection settings in your docker-compose.yaml file:
services:
api:
image: langgenius/dify-api:0.6.11
restart: always
environment:
MODE: api
LOG_LEVEL: INFO
SECRET_KEY: sk-9f73s3ljTXVcMT3Blb3ljTqtsKiGHXVcMT3BlbkFJLK7U
DB_USERNAME: postgres
DB_PASSWORD: difyai123456
DB_HOST: db
DB_PORT: 5432
DB_DATABASE: dify
# Add connect_timeout parameter
DB_OPTIONS: "-c connect_timeout=10"
depends_on:
db:
condition: service_healthy
db:
image: postgres:15-alpine
restart: always
environment:
PGUSER: postgres
POSTGRES_PASSWORD: difyai123456
POSTGRES_DB: dify
PGDATA: /var/lib/postgresql/data/pgdata
volumes:
- ./volumes/db/data:/var/lib/postgresql/data
healthcheck:
test: [ "CMD", "pg_isready" ]
interval: 1s
timeout: 3s
retries: 30By adding the DB_OPTIONS environment variable with the connect_timeout parameter, you can increase the timeout for establishing a connection to the PostgreSQL database. This can help reduce the frequency of psycopg2.OperationalError due to connection timeouts.
Additionally, ensure that your Docker setup meets the recommended resource requirements. For example, on macOS, Docker Desktop should be configured to use at least 2 virtual CPUs and 8 GB of initial memory. This can help prevent resource-related issues that might contribute to the errors [1][2].
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pftom
NiuBlibing
Self Checks
Dify version
0.6.11
Cloud or Self Hosted
Self Hosted (Docker)
Steps to reproduce
I'm using dify with postgresql-ha(bitnami chart) and milvus.
✔️ Expected Behavior
No error and with correct response.
❌ Actual Behavior
It sometimes failed:
Logs: