Firebase-tools: トランザクションでデッドロック状態にあるFirestoreエミュレータ

validate_template = true template_path = .github / ISSUE_TEMPLATE /bug_report.mdを削除しないでください

環境情報

firebase -tools： 8.5.0
プラットフォーム： macOS
ノード： 10.21.0

テストケース

2つの同時トランザクションを使用してドキュメントの読み取り/書き込みを行うと、トランザクションがハングします（デッドロックのように）。

問題を説明するためにサンプルコードをいくつか追加しました（コードがどこにハングするかを明確にするためのコンソールログを含む）。

firestore-emulator-bug-showcase.zip

再現する手順

サンプルコードをダウンロードした後、以下を実行します。

npm install
firebase emulators:start --only firestore --debug # Assuming to be at version 8.5.0

エミュレーターの実行中に、別の端末で次のコマンドを実行します。

npm run test

予想される行動

すべてのテストが正常に実行されることを期待します。 これの意味は：

• 'firestore'テストは正常に実行されます。
• 「リースシングル」テストでは、 trueが返されます。
• 'lease multi'テストでは、トランザクションの1つだけがtrueを返し、もう1つはfalse返します。

実際の動作

しかし、実際には「リースマルチ」テストがハングしてタイムアウトします。 「firestore」および「leasesingle」テストは期待どおりに実行されます。

以下の出力を参照してください。

冗談の出力：

> jest

PASS src/firestore.spec.ts
  firestore
    ✓ is able to communicate with emulator (1063 ms)


  console.info
    Before transaction: try to acquire lease in transaction ...

      at acquireLease (src/lease.ts:16:11)

  console.info
    Before transaction: try to acquire lease in transaction ...

      at acquireLease (src/lease.ts:16:11)

  console.info
    Before transaction: try to acquire lease in transaction ...

      at acquireLease (src/lease.ts:16:11)

PASS src/lease.single.spec.ts
  acquireLease single
    ✓ returns true when ran once (1040 ms)

  console.info
    Transaction: acquired a new lease

      at _firestore2.firestore.runTransaction (src/lease.ts:37:15)

  console.info
    Transaction: acquired a new lease

      at _firestore2.firestore.runTransaction (src/lease.ts:37:15)

  console.info
    Transaction: acquired a new lease

      at _firestore2.firestore.runTransaction (src/lease.ts:37:15)

  console.info
    After transaction: will return true

      at acquireLease (src/lease.ts:43:11)

FAIL src/lease.multi.spec.ts
  ● Test suite failed to run

    Timeout - Async callback was not invoked within the 15000 ms timeout specified by jest.setTimeout.Error: Timeout - Async callback was not invoked within the 15000 ms timeout specified by jest.setTimeout.

      at mapper (node_modules/jest-jasmine2/build/queueRunner.js:29:45)

A worker process has failed to exit gracefully and has been force exited. This is likely caused by tests leaking due to improper teardown. Try running with --runInBand --detectOpenHandles to find leaks.
Test Suites: 1 failed, 2 passed, 3 total
Tests:       2 passed, 2 total
Snapshots:   0 total
Time:        32.386 s
Ran all test suites.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @ test: `jest`
npm ERR! Exit status 1

エミュレーターの出力：

[2020-07-13T15:28:34.365Z] > command requires scopes: ["email","openid","https://www.googleapis.com/auth/cloudplatformprojects.readonly","https://www.googleapis.com/auth/firebase","https://www.googleapis.com/auth/cloud-platform"]
[2020-07-13T15:28:34.366Z] > authorizing via signed-in user
⚠  Could not find config (firebase.json) so using defaults. 
i  emulators: Starting emulators: firestore {"metadata":{"emulator":{"name":"hub"},"message":"Starting emulators: firestore"}}
⚠  firestore: Did not find a Cloud Firestore rules file specified in a firebase.json config file. {"metadata":{"emulator":{"name":"firestore"},"message":"Did not find a Cloud Firestore rules file specified in a firebase.json config file."}}
⚠  firestore: The emulator will default to allowing all reads and writes. Learn more about this option: https://firebase.google.com/docs/emulator-suite/install_and_configure#security_rules_configuration. {"metadata":{"emulator":{"name":"firestore"},"message":"The emulator will default to allowing all reads and writes. Learn more about this option: https://firebase.google.com/docs/emulator-suite/install_and_configure#security_rules_configuration."}}
[2020-07-13T15:28:34.384Z] Ignoring unsupported arg: projectId {"metadata":{"emulator":{"name":"firestore"},"message":"Ignoring unsupported arg: projectId"}}
[2020-07-13T15:28:34.384Z] Ignoring unsupported arg: auto_download {"metadata":{"emulator":{"name":"firestore"},"message":"Ignoring unsupported arg: auto_download"}}
[2020-07-13T15:28:34.385Z] Starting Firestore Emulator with command {"binary":"java","args":["-Duser.language=en","-jar","/Users/vdvleon/.cache/firebase/emulators/cloud-firestore-emulator-v1.11.4.jar","--host","localhost","--port",8080],"optionalArgs":["port","webchannel_port","host","rules","functions_emulator","seed_from_export"],"joinArgs":false} {"metadata":{"emulator":{"name":"firestore"},"message":"Starting Firestore Emulator with command {\"binary\":\"java\",\"args\":[\"-Duser.language=en\",\"-jar\",\"/Users/vdvleon/.cache/firebase/emulators/cloud-firestore-emulator-v1.11.4.jar\",\"--host\",\"localhost\",\"--port\",8080],\"optionalArgs\":[\"port\",\"webchannel_port\",\"host\",\"rules\",\"functions_emulator\",\"seed_from_export\"],\"joinArgs\":false}"}}
i  firestore: Firestore Emulator logging to firestore-debug.log {"metadata":{"emulator":{"name":"firestore"},"message":"Firestore Emulator logging to \u001b[1mfirestore-debug.log\u001b[22m"}}
[2020-07-13T15:28:35.488Z] API endpoint: http://localhost {"metadata":{"emulator":{"name":"firestore"},"message":"API endpoint: http://localhost"}}
[2020-07-13T15:28:35.488Z] :8080
If you are using a library that supports the FIRESTORE_EMULATOR_HOST environment variable, run:

   export FIRESTORE_EMULATOR_HOST=localhost:8080

Dev App Server is now running.

 {"metadata":{"emulator":{"name":"firestore"},"message":":8080\nIf you are using a library that supports the FIRESTORE_EMULATOR_HOST environment variable, run:\n\n   export FIRESTORE_EMULATOR_HOST=localhost:8080\n\nDev App Server is now running.\n\n"}}

┌──────────────────────────────────────────────────────────────┐
│ ✔  All emulators ready! It is now safe to connect your apps. │
└──────────────────────────────────────────────────────────────┘

┌───────────┬────────────────┐
│ Emulator  │ Host:Port      │
├───────────┼────────────────┤
│ Firestore │ localhost:8080 │
└───────────┴────────────────┘
  Other reserved ports: 

Issues? Report them at https://github.com/firebase/firebase-tools/issues and attach the *-debug.log files.

[2020-07-13T15:28:53.466Z] Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected HTTP/2 connection.\n"}}
[2020-07-13T15:28:53.466Z] Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected HTTP/2 connection.\n"}}
[2020-07-13T15:28:53.466Z] Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected HTTP/2 connection.\n"}}
[2020-07-13T15:29:24.261Z] Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError
INFO: operation failed: transaction timeout
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError\nINFO: operation failed: transaction timeout\n"}}
[2020-07-13T15:29:24.261Z] Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError
INFO: operation failed: transaction timeout
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError\nINFO: operation failed: transaction timeout\n"}}