[ZEPPELIN-1827] Flaky Test: ZeppelinIT.testAngularDisplay (myVar=3)

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: flaky-test
• Assignee: Unassigned
• Reporter: Hoon Park
• Created: 16/Dec/16 05:01
• Updated: 19/Sep/19 22:13

Description

I saw this error multiple times.

• raw log1: https://s3.amazonaws.com/archive.travis-ci.org/jobs/184145237/log.txt
• build profile1: https://travis-ci.org/apache/zeppelin/jobs/184145237/config
• Also in a PR comment https://github.com/apache/zeppelin/pull/1688#issuecomment-264378060

5:13:46,289 ERROR org.apache.zeppelin.AbstractZeppelinIT:136 - Exception in ZeppelinIT while testAngularDisplay 
org.openqa.selenium.StaleElementReferenceException: Element not found in the cache - perhaps the page has changed since it was looked up
Command duration or timeout: 30.05 seconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html
Build info: version: '2.48.2', revision: '41bccdd10cf2c0560f637404c2d96164b67d9d67', time: '2015-10-09 13:08:06'
System info: host: 'testing-docker-44f30cc6-7d42-4680-bea6-3b04f484c151', ip: '172.17.0.7', os.name: 'Linux', os.arch: 'amd64', os.version: '4.8.12-040812-generic', java.version: '1.7.0_76'
Session ID: 1d4fa764-6da8-4b0a-9250-040c20362a4f
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{platform=LINUX, acceptSslCerts=true, javascriptEnabled=true, cssSelectorsEnabled=true, databaseEnabled=true, browserName=firefox, handlesAlerts=true, nativeEvents=false, webStorageEnabled=true, rotatable=false, locationContextEnabled=true, applicationCacheEnabled=true, takesScreenshot=true, version=31.0}]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)
	at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:647)
	at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:326)
	at org.openqa.selenium.remote.RemoteWebElement.getText(RemoteWebElement.java:178)
	at org.apache.zeppelin.AbstractZeppelinIT.waitForText(AbstractZeppelinIT.java:84)
	at org.apache.zeppelin.integration.ZeppelinIT.testAngularDisplay(ZeppelinIT.java:157)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.rules.Verifier$1.evaluate(Verifier.java:35)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Caused by: org.openqa.selenium.StaleElementReferenceException: Element not found in the cache - perhaps the page has changed since it was looked up
For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html
Build info: version: '2.48.2', revision: '41bccdd10cf2c0560f637404c2d96164b67d9d67', time: '2015-10-09 13:08:06'

the test code looks like

// ZeppelinIT.testAngularDisplay()

      // check expected text by watcher
      waitForText("myVar=3", By.xpath(
              getParagraphXPath(3) + "//div[contains(@id,\"_text\") and @class=\"text\"]"));