Hi, so there are 2 ways how you can increase max connection in mariadb one is you can set it at runtime but note that this is temporary becasue its at runtime and normally resets when you restart the mariadb database. You do this by setting this SQL Query > SET GLOBAL max\_connections = 500; this takes effects immediatley but it will reset when you restart the db. Option 2, which I can say is a bit the most better persistent way. you can set in the > my.conf > > .env depending on your project configurations or your preference. I will recommend you use the .env approach becasue its the more better approach. so in the .env youll just set > MARIADB\_EXTRA\_FLAGS=--max-connections=500 If you are using the my.conf I suppose maybe you are running the MariaDB here on railway then if that is the case you can add this to your my.conf > max\_connections = 500 Also one thing to note additional thing is that just know that each connection normally consumes RAM probably 1 MB per connection. So with like 500 connections thats like 500MB reserved just for connection overhead you know. And more connection more ram that means usage is gooing to be higher so you can implement sth like connection pooling using PGBOUNCER.

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Hello Sir, The best way to do is that you create a custom MariaDB image with max\_connection set to <number of connection you want to have>. Steps to do this: Deploy a MariaDB from the template section. On your local system build the custom MariaDB. Below is the Dockerfile FROM mariadb:11.4 \# Copy custom MariaDB config COPY my.cnf /etc/mysql/conf.d/my.cnf \# Expose default MySQL port EXPOSE 3306 Copy this into my.cnf \[mysqld\] max\_connections=500 And build the docker image push it on DockerHub or Github then come to railway and just change the image of MaraDB with you custom image. And done