Data Proxy: Client network socket disconnected

Bug description

I’m using Mongodb Cloud with the Prisma data proxy.

Every now and then I’ll get the following error: Client network socket disconnected before secure TLS connection was established in production.

It seems to only happen when using the client functions runCommandRaw or aggregateRaw.

The connection string I’ve entered for the data proxy looks like this: mongodb+srv://<user>:<pass>@<host>/db?maxPoolSize=500

You can see the only option is maxPoolSize. Maybe the proxy requires retryWrites to set and true?

How to reproduce

Expected behavior

No response

Prisma information

Prisma function:

 await prisma.$runCommandRaw({
    update: 'QuotaUsage',
    updates: [
      {
        q: {
          month: new Date().getUTCMonth(),
          year: new Date().getUTCFullYear(),
          userId: { $oid: userId },
        },
        u: {
          $inc: {
            usage: quotaUsage,
          },
        },
      },
    ],
  });

Relevant schema part

generator client {
  provider        = "prisma-client-js"
  previewFeatures = ["dataProxy"]
}

datasource db {
  provider = "mongodb"
  url      = env("DATABASE_URL")
}

...

model QuotaUsage {
  id     String @id @default(auto()) @map("_id") @db.ObjectId
  userId String @db.ObjectId
  user   User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  usage  Int    @default(0)
  month  Int
  year   Int

  @@unique([userId, month, year])
}

Environment & setup

• OS: Vercel Serverless (Ubuntu?)
• Database: MongoDB 5
• Node.js version: 14

Prisma Version

prisma                  : 3.12.0
@prisma/client          : 3.12.0
Current platform        : darwin
Query Engine (Node-API) : libquery-engine 22b822189f46ef0dc5c5b503368d1bee01213980 (at node_modules/@prisma/engines/libquery_engine-darwin.dylib.node)
Migration Engine        : migration-engine-cli 22b822189f46ef0dc5c5b503368d1bee01213980 (at node_modules/@prisma/engines/migration-engine-darwin)
Introspection Engine    : introspection-core 22b822189f46ef0dc5c5b503368d1bee01213980 (at node_modules/@prisma/engines/introspection-engine-darwin)
Format Binary           : prisma-fmt 22b822189f46ef0dc5c5b503368d1bee01213980 (at node_modules/@prisma/engines/prisma-fmt-darwin)
Default Engines Hash    : 22b822189f46ef0dc5c5b503368d1bee01213980
Studio                  : 0.459.0
Preview Features        : dataProxy

[millsp]

Hey everyone, I just wanted to let you know that we shipped prisma@3.15.0 with a RequestError that will be automatically retried in case of network errors. Only if the error is not recoverable after a few retries with backoff, it will throw an exception.

[janpio]

No, Heroku should not be a problem in any way for Prisma’s Data Proxy as far as I am aware.