Environment details

• OS: Mac OS Catalina
• Node.js version: 12.13.0
• npm version: 6.12.0
• google-gax version: >=1.0.0
• Electron version: 8.2.5

Steps to reproduce

With the above environment, and using @google-cloud/firestore>=2.0.0 (via firebase-admin>=8.0.0) calls to Firebase that fetch multiple updated documents from a collection:

await db.collection('audiences').get()

fail with:

[23:51:38.659] [error] Error [ERR_STREAM_PUSH_AFTER_EOF]: stream.push() after EOF
    at readableAddChunk (_stream_readable.js:277:32)
    at ClientReadableStreamImpl.Readable.push (_stream_readable.js:223:10)
    at Object.onReceiveMessage (/project/path/node_modules/@grpc/grpc-js/build/src/client.js:317:28)
    at Object.onReceiveMessage (/project/path/node_modules/@grpc/grpc-js/build/src/client-interceptors.js:287:182)
    at /project/path/node_modules/@grpc/grpc-js/build/src/call-stream.js:164:74
    at processTicksAndRejections (internal/process/task_queues.js:75:11)

It is important to note that this error is only triggered when there is more than one document returned by the query. If only a single document is returned it executes without issue.

I tracked the issue down to one of the commits introduced to @google-cloud/firestore between 1.3.0 and 2.0.0:

• I installed firebase-admin@7.4.0, which brings along @google-cloud/firestore@1.3.0 and my collection query ran without issue.
• I force upgraded @google-cloud/firestore to 2.0.0 and ran it with firebase-admin@7.4.0 (public API is the same, runs without issue) and my collection query threw the above error.
• For completeness, I also ran with the following combinations – all versions of @google-cloud/firestore above 2.0.0 failed.
  • firebase-admin@8.0.0 + @google-cloud/firestore@2.0.0
  • firebase-admin@8.0.0 + @google-cloud/firestore@2.6.1
  • firebase-admin@8.12.1 + @google-cloud/firestore@3.0.0
  • firebase-admin@8.12.1 + @google-cloud/firestore@3.8.0 (latest)

Three things of consequence happened between 1.3.0 and 2.0.0:

• Two long-lived listener fixes
• A version bump for google-gax

On that hunch, I both force upgraded and downgraded google-gax.

• Upgrading to 2.3.1 still failed.
• Downgrading to 0.26.0, which @google-cloud/firestore@1.3.0 depends on, WORKS!

There were a number of substantial commits between google-gax@0.26.0 and the 1.0.0 release. I'm not sure which could have cause this.

I'm opening this issue along with a companion issue in @google-cloud/firestore. This is preventing me from bumping @google-cloud/firestore (and firebase-admin) to latest.

Please let me know if I can provide any more context!