使用ShellCommandUnresponsiveException在Travis上進行Android測試失敗

Question

我們在Travis的Android項目的第一次甚至第二次執行拉取請求時看到很多構建失敗。 但是，如果我們重新啟動完全相同的構建，它最終會通過。

這是失敗時的錯誤：

:onebusaway-android:connectedAndroidTest
09:48:14 E/Device: Error during shell execution: null
Unable to install /home/travis/build/OneBusAway/onebusaway-android/onebusaway-android/build/outputs/apk/onebusaway-android-debug.apk
com.android.ddmlib.InstallException
at com.android.ddmlib.Device.installPackages(Device.java:927)
at com.android.builder.testing.ConnectedDevice.installPackages(ConnectedDevice.java:105)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:125)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:48)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.ddmlib.ShellCommandUnresponsiveException
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:513)
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:390)
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:359)
at com.android.ddmlib.Device.executeShellCommand(Device.java:566)
at com.android.ddmlib.Device.createMultiInstallSession(Device.java:987)
at com.android.ddmlib.Device.installPackages(Device.java:884)
... 9 more
com.android.builder.testing.ConnectedDevice > runTests[test(AVD) - 5.0.1] FAILED 
com.android.builder.testing.api.DeviceException: com.android.ddmlib.InstallException
    at com.android.builder.testing.ConnectedDevice.installPackages(ConnectedDevice.java:108)
null
com.android.builder.testing.api.DeviceException: com.android.ddmlib.InstallException
at com.android.builder.testing.ConnectedDevice.installPackages(ConnectedDevice.java:108)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:125)
at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:48)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.ddmlib.InstallException
at com.android.ddmlib.Device.installPackages(Device.java:927)
at     com.android.builder.testing.ConnectedDevice.installPackages(ConnectedDevice.java:105)
... 8 more
Caused by: com.android.ddmlib.ShellCommandUnresponsiveException
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:513)
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:390)
at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:359)
at com.android.ddmlib.Device.executeShellCommand(Device.java:566)
at com.android.ddmlib.Device.createMultiInstallSession(Device.java:987)
at com.android.ddmlib.Device.installPackages(Device.java:884)
... 9 more
:onebusaway-android:connectedAndroidTest FAILED
FAILURE: Build failed with an exception.

我們使用gradlew connectedTest在Travis上運行模擬器上的測試。

這是我們的.travis.yml：

# Test format changes to this .travis.yml file before submitting a PR with:
# http://lint.travis-ci.org/OneBusAway/onebusaway-android

language: android
jdk: oraclejdk7
# Turn off caching to avoid any caching problems
cache: false
# Use the Travis Container-Based Infrastructure (see #203)
sudo: false
env:
  global:
    - ANDROID_API_LEVEL=21
    - ANDROID_BUILD_TOOLS_VERSION=21.1.2
    - ANDROID_ABI=google_apis/armeabi-v7a

android:
  components:
    - platform-tools
    - tools
    - build-tools-$ANDROID_BUILD_TOOLS_VERSION
    - android-$ANDROID_API_LEVEL
    # For Google Maps API v1
    - addon-google_apis-google-$ANDROID_API_LEVEL
    # Google Play Services
    - extra-google-google_play_services
    # Support library
    - extra-android-support
    # Latest artifacts in local repository
    - extra-google-m2repository
    - extra-android-m2repository
    # Specify at least one system image
    - sys-img-armeabi-v7a-addon-google_apis-google-$ANDROID_API_LEVEL

before_script:
  # Create and start emulator
  - echo no | android create avd --force -n test -t "Google Inc.:Google APIs:"$ANDROID_API_LEVEL --abi $ANDROID_ABI
  - emulator -avd test -no-skin -no-audio -no-window &

script:
  - ./wait_for_emulator
  - ./gradlew connectedCheck -PdisablePreDex

# Integration with Gitter (https://gitter.im/OneBusAway/onebusaway-android)
notifications:
  webhooks:
    urls:
      - https://webhooks.gitter.im/e/493b93a98ed03a010c4c
    on_success: change  # options: [always|never|change] default: always
    on_failure: always  # options: [always|never|change] default: always
    on_start: false     # default: false

Answer 1

您可以將Travis上的環境變量ADB_INSTALL_TIMEOUT設置為8分鍾以避免此問題。

例如，在.travis.yml中：

language: android
jdk: oraclejdk7
# Turn off caching to avoid any caching problems
cache: false
# Use the Travis Container-Based Infrastructure
sudo: false
env:
  global:
    - ANDROID_API_LEVEL=21
    - ANDROID_BUILD_TOOLS_VERSION=21.1.2
    - ANDROID_ABI=armeabi-v7a
    - ADB_INSTALL_TIMEOUT=8 # minutes (2 minutes by default)

android:
  components:
    - platform-tools
    - tools
    - build-tools-$ANDROID_BUILD_TOOLS_VERSION
    - android-$ANDROID_API_LEVEL

ShellCommandUnresponsiveException與AOSP問題69735有關：Ddmlib對於Device.java中的超時過於激進 ，如果它沒有收到輸入，會導致ddmlib快速超時。 上述環境變量會延長Travis VM上的超時時間。

另外，請確保您使用的是最新的API級SDK和Build工具（至少上面的版本），因為早期版本不允許設置此環境變量。

請注意，如果您的測試偶爾會傳遞給Travis，這可能只能解決您的問題 - 如果您的構建總是失敗，您可能會遇到其他問題。

編輯2016年3月

請注意，如果您仍然看到失敗，尤其是在API Level 23仿真器上，則會出現另一個可能導致問題的仿真器超時問題。

要解決這個問題，您需要將Gradle插件更新為至少2.0.0-beta3 - 例如：

dependencies {
    classpath 'com.android.tools.build:gradle:2.0.0-beta5'
}

詳情見：

• API 23 Google API仿真器映像上的Gradle命令失敗（armeabi-v7a）
• https://code.google.com/p/android/issues/detail?id=190200
• https://code.google.com/p/android/issues/detail?id=189764