12/8/2023 0 Comments Mysql max connections limit![]() ![]() Set pool size ( connection_limit) based on whether you have an external connection pooler, and optionally tune the pool size.Familiarize yourself with the serverless connection management challenge.Use the following checklist as a guide to connection management in serverless environments: However, if the framework refreshes the module responsible for exporting PrismaClient, this can result in additional, unwanted instances of PrismaClient in a development environment.Īs a workaround, you can store PrismaClient as a global variable in development environments only, as global variables are not reloaded:ħ main ( ) Serverless environments (FaaS)Įxamples of serverless environments include Node.js functions hosted on AWS Lambda, Vercel or Netlify Functions. Prevent hot reloading from creating new instances of PrismaClientįrameworks like Next.js support hot reloading of changed files, which enables you to see changes to your application without restarting. Opening a new connection takes time and can slow down your application if you disconnect after each query. You do not need to explicitly $disconnect() in the context of a long-running application that is continuously serving requests. For example, you can instantiate PrismaClient in the context object that you pass into an Express app. You do not have to replicate the example above exactly - the goal is to make sure PrismaClient is cached. To re-use a single instance, create a module that exports a PrismaClient object: ✔ Assign PrismaClient to a global variable in dev environments only to prevent hot reloading from creating new instances.✔ Create one instance of PrismaClient and re-use it across your application.In long-running applications, we recommend that you: ![]() PrismaClient in long-running applications For example, if your calculated pool size is 10 and you have 2 instances of your app, the connection_limit parameter should be no more than 5.
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