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Appium Grid hub sending wrong set of capabilities to nodes

I am trying to configure Appium Grid with below node configuration.

-Hub is receiving proper capabilities from testng but hub is sending wrong capabilities to my only two nodes. (node configs are as follows )

Please do suggest where am I going wrong.

Emulator Node config

Command running the node with : node appium.js --port 4723 --nodeconfig G:\Selenium2\Grid\AppiumEmulatorNode.json

{
    "capabilities": [{
        "browserName": "Emulator_5.1.0",
        "version": "5.1.0",
        "maxInstances": 1,
        "platform": "ANDROID"
    }],
    "configuration": {
        "cleanUpCycle": 2000,
        "timeout": 30000,
        "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
        "url": "http://192.168.0.104:4723/wd/hub",
        "host": 192.168.0.104,
        "port": 4723,
        "maxSession": 1,
        "register": true,
        "registerCycle": 5000,
        "hubPort": 4444 ,
        "hubHost": "192.168.0.104"
    }
}

Real device Node config

Command running the node with : node appium.js --port 4724 --nodeconfig G:\Selenium2\Grid\AppiumRealDevice.json

{
    "capabilities": [{
        "browserName": "Sony Xperia SP",
        "version": "5.1.1",
        "maxInstances": 1,
        "platform": "ANDROID"
    }],
    "configuration": {
        "cleanUpCycle": 2000,
        "timeout": 30000,
        "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
        "url": "http://192.168.0.104:4724/wd/hub",
        "host": "192.168.0.104",
        "port": 4724,
        "maxSession": 1,
        "register": true,
        "registerCycle": 5000,
        "hubPort": 4444 ,
        "hubHost": "192.168.0.104"
    }
}

Testng file

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="TestsSuite" parallel="tests" thread-count="2" verbose="5">

    <test name="Test1">
        <parameter name="UdidOrDeviceName" value="YT910LQ91K"></parameter>
        <parameter name="MobileVersion" value="5.2.0"></parameter>
        <classes>
            <class name="com.apps.AppiumTest.AppiumMessengerTest" />
        </classes>
    </test>
    <test name="Test2">
        <parameter name="UdidOrDeviceName" value="192.168.113.101:5555"></parameter>
        <parameter name="MobileVersion" value="5.1.0"></parameter>
        <classes>
            <class name="com.apps.AppiumTest.AppiumMessengerTest" />
        </classes>
    </test>
</suite>

Grid hub Output

   19:47:56.092 INFO - Registered a node http://192.168.0.104:4723
19:51:05.917 INFO - Registered a node http://192.168.0.104:4724
19:51:31.419 INFO - Got a request to create a new session: Capabilities [{appActivity=com.android.mms.ui.ConversationList, appPackage=com.android.mms, platformVersion=5.2.0, newCOmmandTimeout=1000, platformName=Android, deviceName=YT910LQ91K}]
19:51:31.433 INFO - Available nodes: [http://192.168.0.104:4723, http://192.168.0.104:4724]
19:51:31.438 INFO - Got a request to create a new session: Capabilities [{appActivity=com.android.mms.ui.ConversationList, appPackage=com.android.mms, platformVersion=5.1.0, newCOmmandTimeout=1000, platformName=Android, deviceName=192.168.113.101:5555}]
19:51:31.438 INFO - Trying to create a new session on node http://192.168.0.104:4723
19:51:31.460 INFO - Trying to create a new session on test slot {maxInstances=3, platformName=ANDROID, deviceName=192.168.113.101:5555, version=5.1.0}
19:51:31.476 INFO - Available nodes: [http://192.168.0.104:4724, http://192.168.0.104:4723]
19:51:31.486 INFO - Trying to create a new session on node http://192.168.0.104:4724
19:51:31.501 INFO - Trying to create a new session on test slot {browserName=Sony Xperia SP, maxInstances=1, version=5.1.1, platform=ANDROID}

Emulator Node output

This node receiving wrong set of data from Selenium Grid.It should receive emulator capabilities but it has received real device capabilities

C:\Program Files (x86)\Appium\node_modules\appium\bin>node appium.js --port 4723 --nodeconfig G:\Selenium2\Grid\AppiumEmulatorNode.json
info: Welcome to Appium v1.4.16 (REV ae6877eff263066b26328d457bd285c0cc62430d)
info: Appium REST http interface listener started on 0.0.0.0:4723
info: [debug] Non-default server args: {"nodeconfig":"G:\\Selenium2\\Grid\\AppiumEmulatorNode.json"}
info: Console LogLevel: debug
info: [debug] starting auto register thread for grid. Will try to register every 5000 ms.
info: [debug] Appium successfully registered with the grid on 192.168.0.104:4444
info: --> GET /wd/hub/status {}
info: [debug] Responding to client with success: {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: <-- GET /wd/hub/status 200 28.871 ms - 105 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: <-- GET /wd/hub/status 200 11.314 ms - 105 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: --> POST /wd/hub/session {"desiredCapabilities":{"appActivity":"com.android.mms.ui.ConversationList","appPackage":"com.android.mms","platformVersion":"5.2.0","newCOmmandTimeout":1000,"platformName":"Android","deviceName":"YT910LQ91K"}}
info: Client User-Agent string: Apache-HttpClient/4.5.1 (Java/1.8.0_65)

Real Device Node output

This node receiving wrong set of data from Selenium Grid.It should receive Real device capabilities but it has received emulator capabilities

C:\Program Files (x86)\Appium\node_modules\appium\bin>node appium.js --port 4724 --nodeconfig G:\Selenium2\Grid\AppiumRealDevice.json
info: Welcome to Appium v1.4.16 (REV ae6877eff263066b26328d457bd285c0cc62430d)
info: Appium REST http interface listener started on 0.0.0.0:4724
info: [debug] Non-default server args: {"port":4724,"nodeconfig":"G:\\Selenium2\\Grid\\AppiumRealDevice.json"}
info: Console LogLevel: debug
info: [debug] starting auto register thread for grid. Will try to register every 5000 ms.
info: [debug] Appium successfully registered with the grid on 192.168.0.104:4444
info: --> GET /wd/hub/status {}
info: [debug] Responding to client with success: {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: <-- GET /wd/hub/status 200 22.103 ms - 105 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: --> GET /wd/hub/status {}
info: [debug] Responding to client with success: {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: <-- GET /wd/hub/status 200 12.602 ms - 105 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: --> GET /wd/hub/status {}
info: [debug] Responding to client with success: {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: <-- GET /wd/hub/status 200 11.690 ms - 105 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: --> GET /wd/hub/status {}
info: [debug] Responding to client with success: {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: <-- GET /wd/hub/status 200 11.460 ms - 105 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: --> GET /wd/hub/status {}
info: [debug] Responding to client with success: {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: <-- GET /wd/hub/status 200 11.927 ms - 105 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}}}
info: --> POST /wd/hub/session {"desiredCapabilities":{"appActivity":"com.android.mms.ui.ConversationList","appPackage":"com.android.mms","platformVersion":"5.1.0","newCOmmandTimeout":1000,"platformName":"Android","deviceName":"192.168.113.101:5555"}}
info: Client User-Agent string: Apache-HttpClient/4.5.1 (Java/1.8.0_65)
info: [debug] The following desired capabilities were provided, but not recognized by appium. They will be passed on to any other services running on this server. : newCOmmandTimeout
info: [debug] Didn't get app but did get Android package, will attempt to launch it on the device
info: [debug] Creating new appium session 515cbed7-46c0-4fce-a2e0-652976c5a659
info: Starting android appium
info: [debug] Getting Java version
info: Java version is: 1.8.0_71
info: [debug] Checking whether adb is present
info: [debug] Using adb from C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe
warn: No app capability, can't parse package/activity
info: [debug] Using fast reset? true
info: [debug] Preparing device for session
info: [debug] Not checking whether app is present since we are assuming it's already on the device
info: Retrieving device
info: [debug] Trying to find a connected android device
info: [debug] Getting connected devices...
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe devices
info: [debug] 2 device(s) connected
info: Found device 192.168.113.101:5555
info: [debug] Setting device id to 192.168.113.101:5555
info: [debug] Waiting for device to be ready and to respond to shell commands (timeout = 5)
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 wait-for-device
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 shell "echo 'ready'"
info: [debug] Starting logcat capture
info: [debug] Getting device API level
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 shell "getprop ro.build.version.sdk"
info: [debug] Device is at API Level 22
info: Device API level is: 22
info: [debug] Extracting strings for language: default
info: [debug] Apk doesn't exist locally
info: [debug] Could not get strings, but it looks like we had an old strings file anyway, so ignoring
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 shell "rm -rf /data/local/tmp/strings.json"
info: [debug] Not uninstalling app since server not started with --full-reset
info: [debug] Skipping install since we launched with a package instead of an app path
info: [debug] Forwarding system:4724 to device:4724
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 forward tcp:4724 tcp:4724
info: [debug] Pushing appium bootstrap to device...
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 push "C:\\Program Files (x86)\\Appium\\node_modules\\appium\\build\\android_bootstrap\\AppiumBootstrap.jar" /data/local/tmp/
info: [debug] Pushing settings apk to device...
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 install "C:\Program Files (x86)\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk"
info: [debug] Pushing unlock helper app to device...
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 install "C:\Program Files (x86)\Appium\node_modules\appium\build\unlock_apk\unlock_apk-debug.apk"
info: --> GET /wd/hub/status {}
info: [debug] Responding to client with success: {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}},"sessionId":"515cbed7-46c0-4fce-a2e0-652976c5a659"}
info: <-- GET /wd/hub/status 200 69.204 ms - 156 {"status":0,"value":{"build":{"version":"1.4.16","revision":"ae6877eff263066b26328d457bd285c0cc62430d"}},"sessionId":"515cbed7-46c0-4fce-a2e0-652976c5a659"}
info: Starting App
info: [debug] Attempting to kill all 'uiautomator' processes
info: [debug] Getting all processes with 'uiautomator'
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 shell "ps 'uiautomator'"
info: [debug] No matching processes found
info: [debug] Running bootstrap
info: [debug] spawning: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 shell uiautomator runtest AppiumBootstrap.jar -c io.appium.android.bootstrap.Bootstrap -e pkg com.android.mms -e disableAndroidWatchers false
info: [debug] [UIAUTOMATOR STDOUT] INSTRUMENTATION_RESULT: shortMsg=java.lang.IllegalStateException
info: [debug] [UIAUTOMATOR STDOUT] INSTRUMENTATION_RESULT: longMsg=UiAutomationService android.accessibilityservice.IAccessibilityServiceClient$Stub$Proxy@1034d97calready registered!
info: [debug] [UIAUTOMATOR STDOUT] INSTRUMENTATION_CODE: 0
info: [debug] UiAutomator exited
info: [debug] executing cmd: C:\Users\Harsha\AppData\Local\Android\sdk\platform-tools\adb.exe -s 192.168.113.101:5555 shell "echo 'ping'"
info: [debug] Attempting to uninstall app
info: [debug] Not uninstalling app since server not started with --full-reset
info: [debug] Cleaning up android objects
error: UiAutomator quit before it successfully launched
info: [debug] Cleaning up appium session
error: Failed to start an Appium session, err was: Error: UiAutomator quit before it successfully launched
info: [debug] Error: UiAutomator quit before it successfully launched
    at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android.js:205:23)
    at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-hybrid.js:249:5)
    at Object.async.eachSeries (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:142:20)
    at [object Object].androidHybrid.stopChromedriverProxies (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-hybrid.js:233:9)
    at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android.js:200:10)
    at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android.js:222:9)
    at [object Object].androidCommon.uninstallApp (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:478:5)
    at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android.js:220:12)
    at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android.js:229:11)
    at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:901:7
    at [object Object].<anonymous> (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:180:9)
    at ChildProcess.exithandler (child_process.js:194:7)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:818:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)
info: [debug] Responding to client with error: {"status":33,"value":{"message":"A new session could not be created. (Original error: UiAutomator quit before it successfully launched)","origValue":"UiAutomator quit before it successfully launched"},"sessionId":null}
Solution

  • Here's how the Grid decides to which node should a test be routed to.

    It uses something called as a Capability Matcher, to help it decide as to which among its nodes should a test be routed to. If you don't provide a custom capability matcher [ You can take a look at this blog of mine to understand how to plugin in your own custom variant ], it resorts to relying on the DefaultCapabilityMatcher for doing this matching job.

    Since you haven't set any of the attributes that the default capability matcher understands [ see here for learning what are those ], it always matches the first node with a test. That is why you are seeing the mess up.

    It only understands browserName, platform, version and applicationName and for browserName, platform you cannot pass in any arbitrary values but can only use predefined values. See BrowserType and Platform java classes.

    So to solve your problem, you have two options.

    Option 1 : You build your own capability matcher which suites your needs (you can refer to my blog post link that I have shared above) and work with it.

    Option 2 : You resort to using the capability "applicationName" wherein you provide a unique value to this for each of your nodes and then rely on your test to add this extra capability at the test level.

    That should resolve your problem.