Major Description
'create a new session and upload test jar' and 'connect to an existing session' UT fails intermittently with below error
org.apache.livy.test.JobApiIT.connect to an existing session
Error Message
The code passed to eventually never returned normally. Attempted 309 times over 5.0064149996000005 minutes. Last failure message: assertion failed: HTTP status code != 200: 404 "Session '0' not found.".
org.apache.livy.test.JobApiIT.create a new session and upload test jar
Error Message
java.io.IOException: Internal Server Error: "java.util.concurrent.ExecutionException: java.lang.RuntimeException: py4j.Py4JException: Error while obtaining a new communication channel\npy4j.CallbackClient.getConnectionLock(CallbackClient.java:155)\npy4j.CallbackClient.sendCommand(CallbackClient.java:229)\npy4j.reflection.PythonProxyHandler.invoke(PythonProxyHandler.java:111)\ncom.sun.proxy.$Proxy22.getLocalTmpDirPath(Unknown Source)\norg.apache.livy.repl.PythonInterpreter.addPyFile(PythonInterpreter.scala:264)\norg.apache.livy.repl.ReplDriver$$anonfun$addJarOrPyFile$1.apply(ReplDriver.scala:110)\norg.apache.livy.repl.ReplDriver$$anonfun$addJarOrPyFile$1.apply(ReplDriver.scala:110)\nscala.Option.foreach(Option.scala:257)\norg.apache.livy.repl.ReplDriver.addJarOrPyFile(ReplDriver.scala:110)\norg.apache.livy.rsc.driver.JobContextImpl.addJarOrPyFile(JobContextImpl.java:100)\norg.apache.livy.rsc.driver.AddJarJob.call(AddJarJob.java:39)\norg.apache.livy.rsc.driver.JobWrapper.call(JobWrapper.java:57)\norg.apache.livy.rsc.driver.JobWrapper.call(JobWrapper.java:34)\njava.util.concurrent.FutureTask.run(FutureTask.java:266)\njava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)\njava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)\njava.lang.Thread.run(Thread.java:745)"