I'm relatively new to backend development and AWS, so sorry if my question sounds basic. I'm running a Node.js and Express backend using the `pg` Pool to connect to AWS RDS PostgreSQL. I've set it up with SSL using the AWS CA bundle (`global-bundle.pem`), and all the credentials and configurations are correct since `pgAdmin` connects without any problems. I'm developing in WSL2.
Here's my connection setup:
```javascript
const pool = new Pool({
host: process.env.DB_HOST,
port: process.env.DB_PORT,
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE,
ssl: {
rejectUnauthorized: true,
ca: fs.readFileSync('src/config/certs/global-bundle.pem').toString(),
},
});
```
What I'm experiencing are random connection timeouts that occur every now and then, but then it will connect just fine. This issue happens regardless of whether I use `nodemon` or `node server.js`, and sometimes the RDS instance logs this message: `pgsqlCopyEdit LOG: could not receive data from client: Connection reset by peer`. I thought the SSL might be causing it, which is why I included it.
So, I'm asking:
- What could be the main issue here, considering my credentials and security groups are set correctly?
- Am I trying to connect too quickly after the process starts?
- How can I make the connection more reliable?
Any help would be appreciated!
1 Answer
It sounds like there could be a few issues at play. First, verify if your Node.js application is trying to connect to the database before it's fully initialized. You might want to introduce a delay before your first connection attempt to see if that helps. Secondly, check your security groups; occasionally the connection resets can be linked to timeout issues with the firewall settings. You might want to tweak those timeout settings and see if it makes a difference.
Thanks for the tips! I'll try adding a connection delay and revisiting the security group settings to see if that resolves the issue.