PostgreSQL instance has exceeded the maximum number of allowed concurrent connections

[wilsonccccc]

Found fatal error: FATAL: sorry, too many clients already

PostgreSQL has a default connection limit (often 100), most likely we don’t manage connections properly (e.g., not using pooling or not closing connections), and this limit is quickly hit

1. Use a Connection Pool
2. Set pool_recycle or pool_timeout (to prevent zombie connections)
3. Close connections when done (especially in scripts or jobs)

Or any optimization we have to apply.

[wilsonccccc]

Adjust the number of workers to avoid db pool is overflow (https://github.com/TensorBlock/forge/pull/22[)](https://github.com/TensorBlock/forge/commit/62327160822014fcf7ae5305460cda9b24ec07ce)