[Firestore] Unhandled error Error read ECONNRESET after enabling 'preferRest'

[Johnny Oshika]

[REQUIRED] Step 2: Describe your environment

• Operating System version: Linux
• Firebase SDK version: firebase-admin@11.9.0
• Firebase Product: Firestore
• Node.js version: 16
• NPM version: 8.1.2

[REQUIRED] Step 3: Describe the problem

Steps to reproduce:

Ever since I enabled preferRest:

const db = initializeFirestore(app, {
  preferRest: true,
});

...I've been getting many Unhandled error Error read ECONNRESET error notifications from Google Cloud. Here's a typical notification message:

Relevant Code:

const db = initializeFirestore(app, {
  preferRest: true,
});

[Google Open Source Bot]

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[Johnny Oshika]

Here's another one with a different error message, but also only started appearing after enabling preferRest:

[Ehsan]

tracking internally b/291972583

[Sarah]

We are also seeing lots of ECONNRESET since using rest. In our case, it is because the firebase functions are now setting FIRESTORE_PREFER_REST to true in environments which essentially turned this functionality on for us by default which caused us to get ECONNRESET errors across all of the functions which we recently deployed. I linked a new issue asking for guidance on this (see link to issue above in @google-cloud/firestore repo).