---
title: MySQL Error Message: Too Many Connections
slug: manufacturing-connect-edge-v1/mysql-error-message-too-many-connections
docTags: 
createdAt: 2023-12-07T18:56:35.946Z
---

If you get the MySQL error message `Error: Too many connections` , this could be caused by the connection limit of 150 connections configured in MySQL. Each MySQL node on the Flows canvas creates a connection pool of 50 connections to the MySQL server, so using 4 MySQL nodes in 4 different Flows Managers could trigger this error. To resolve this, you can manually increase the MySQL connection limit up to 100,000. Refer to GitHub documentation on [68-mysql.js](https://github.com/node-red/node-red-nodes/blob/master/storage/mysql/68-mysql.js) to learn more.