Error communicating with remote browser

[Greg Martz]

Selenium 2.53.1, Firefox 42.  Things used to work no problems.  Now I'm getting random "UnreachableBrowser Exception: Error communicating with the remote browser.  It may have died."

Anyone have any ideas at all?  This happen randomly when running the suite.  Here is the error trace:

org.openqa.selenium.remote.UnreachableBrowserException: Error communicating with the remote browser. It may have died.

Build info: version: '2.53.1', revision: 'a36b8b1cd5757287168e54b817830adce9b0158d', time: '2016-06-30 19:26:09'

System info: host: 'L7EIS-DEV504', ip: '172.21.229.107', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_121'

Driver info: driver.version: RemoteWebDriver

Capabilities [{applicationCacheEnabled=true, rotatable=false, handlesAlerts=true, databaseEnabled=true, version=42.0, platform=WINDOWS, nativeEvents=false, acceptSslCerts=true, webStorageEnabled=true, locationContextEnabled=true, browserName=firefox, takesScreenshot=true, javascriptEnabled=true, cssSelectorsEnabled=true}]

Session ID: 392b6271-d8be-40cb-b59f-95749e748b3a

at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:665)

at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:327)

at org.openqa.selenium.remote.RemoteWebElement.isSelected(RemoteWebElement.java:159)

at org.openqa.selenium.support.ui.Select.getFirstSelectedOption(Select.java:95)

at main.java.Utility.selectDropdownByVisibleText(Utility.java:1424)

at test.java.InitiateBuyPlan.testInitiateBuyPlan(InitiateBuyPlan.java:170)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:108)

at org.testng.internal.Invoker.invokeMethod(Invoker.java:661)

at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:869)

at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1193)

at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:126)

at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)

at org.testng.TestRunner.privateRun(TestRunner.java:744)

at org.testng.TestRunner.run(TestRunner.java:602)

at org.testng.SuiteRunner.runTest(SuiteRunner.java:380)

at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375)

at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)

at org.testng.SuiteRunner.run(SuiteRunner.java:289)

at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)

at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)

at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301)

at org.testng.TestNG.runSuitesLocally(TestNG.java:1226)

at org.testng.TestNG.runSuites(TestNG.java:1144)

at org.testng.TestNG.run(TestNG.java:1115)

at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)

at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)

at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)

Caused by: org.apache.http.ConnectionClosedException: Premature end of Content-Length delimited message body (expected: 104; received: 0

at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:180)

at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:200)

at org.apache.http.impl.io.ContentLengthInputStream.close(ContentLengthInputStream.java:103)

at org.apache.http.impl.execchain.ResponseEntityProxy.streamClosed(ResponseEntityProxy.java:128)

at org.apache.http.conn.EofSensorInputStream.checkClose(EofSensorInputStream.java:228)

at org.apache.http.conn.EofSensorInputStream.close(EofSensorInputStream.java:174)

at org.apache.http.util.EntityUtils.consume(EntityUtils.java:88)

at org.openqa.selenium.remote.internal.ApacheHttpClient.createResponse(ApacheHttpClient.java:113)

at org.openqa.selenium.remote.internal.ApacheHttpClient.execute(ApacheHttpClient.java:94)

at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142)

at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.execute(NewProfileExtensionConnection.java:160)

at org.openqa.selenium.firefox.FirefoxDriver$LazyCommandExecutor.execute(FirefoxDriver.java:380)

at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:644)

... 30 more

Thanks!

Greg

[Kundana Devi]

Hi Greg,

According to me,it usually comes when all the nodes are occupied and also all the browsers in the nodes.

 Regards,

Kundana

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[Greg Martz]

I'm not using nodes however.  This is running locally.  And happening for everyone who is running the automation.

Thanks!

Greg

Greg Martz
Test Analyst III - Sr. Software Automation Analyst  |  (425)416-5039  |  gma...@Costco.com 

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[Kundana Devi]

Hi Greg, 

Usually remote browser concept comes in grid. 

Thanks, 

Kundana

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[Greg Martz]

I know, but I'm not using remote browser.  

Thanks!

Greg

On Wed, Mar 15, 2017 at 6:37 AM, Kundana Devi <kunda...@gmail.com> wrote:

Hi Greg, 

Usually remote browser concept comes in grid. 

Thanks, 

Kundana

On Mar 15, 2017 18:31, "Greg Martz" <gma...@costco.com> wrote:

I'm not using nodes however.  This is running locally.  And happening for everyone who is running the automation.

Thanks!

Greg

To view this discussion on the web visit https://groups.google.com/d/msgid/selenium-users/CAJ5e%3DejLmehPc1YdJ-kaLabVxF3xfYkCmN%3DEDkmyomQnWJuajg%40mail.gmail.com.

For more options, visit https://groups.google.com/d/optout.

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[Billy @ FBA]

Not sure if this is related, but here is what I am seeing in Visual Studio on Windows 7 (see screenshots).

Specs:
java -Xrs -jar selenium-server-standalone-3.3.1.jar -role hub -port 4747
java -Xrs -Dwebdriver.ie.driver="C://WebDriverServer//IEDriverServer_x64_3.3.0.exe" -jar selenium-server-standalone-3.3.1.jar -role node -hub http://localhost:4747/grid/register -browser "browserName=internet explorer,version=latest,maxInstances=1,seleniumProtocol=WebDriver"

Context:
I am using c sharp console app and a grid hub - grid node (1 IE instance) setup to navigate to 2 different urls.
I used breakpoints to show that when the browser is first launched, it seems to behave normally.
Screenshot_3.png


Then once I send it my first command (navigate to url 1) , it behaves strangely and throws errors from which it does not recover.
Screenshot_4.png


It stops running any commands. See the node stacktrace.


I hope you guys can help me figure out why!

Cheers!