Hi,
I am using the sbt tool to build and run the scala tests related to spark.
In my /src/test/scala directory, there are two test classes (TestA, TestB),
both of which use the class in Spark for creating SparkContext, something
like
trait LocalTestSparkContext extends BeforeAndAfterAll { self: Suite =>
@transient var sc: SparkContext = _
override def beforeAll() {
super.beforeAll()
val conf = new SparkConf()
.setMaster("local[2]")
.setAppName("LocalSparkUnitTest")
sc = new SparkContext(conf)
}
override def afterAll() {
if (sc != null) {
sc.stop()
}
super.afterAll()
}
}
So, TestA and TestB are defined as
class TestA extends FunSuite with LocalTestSparkContext
class TestB extends FunSuite with LocalTestSparkContext
However, when I built the project using sbt and ran sbt test, I got the
following error. However, no error occurred if I only had one test. Is this
related to the SparkContext? Only one sc should be active? However, I
thought the LocalTestSparkContext should already take care of this since it
stops sc at the end of each class. I am totally lost, could someone let me
know what is the issue and how to resolve it? Thanks a lot.
15/01/14 14:12:43 WARN component.AbstractLifeCycle: FAILED
SelectChannelConnector@0.0.0.0:4040: java.net.BindException: Address
already in use: bind
java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
at
org.eclipse.jetty.server.nio.SelectChannelConnector.open(SelectChannelConnector.java:187)
at
org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:316)
at
org.eclipse.jetty.server.nio.SelectChannelConnector.doStart(SelectChannelConnector.java:265)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.Server.doStart(Server.java:293)
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at
org.apache.spark.ui.JettyUtils$.org$apache$spark$ui$JettyUtils$$connect$1(JettyUtils.scala:195)
at org.apache.spark.ui.JettyUtils$$anonfun$4.apply(JettyUtils.scala:205)
at org.apache.spark.ui.JettyUtils$$anonfun$4.apply(JettyUtils.scala:205)
at
org.apache.spark.util.Utils$$anonfun$startServiceOnPort$1.apply$mcVI$sp(Utils.scala:1504)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141)
at org.apache.spark.util.Utils$.startServiceOnPort(Utils.scala:1495)
at org.apache.spark.ui.JettyUtils$.startJettyServer(JettyUtils.scala:205)
at org.apache.spark.ui.WebUI.bind(WebUI.scala:102)
at org.apache.spark.SparkContext$$anonfun$10.apply(SparkContext.scala:234)
at org.apache.spark.SparkContext$$anonfun$10.apply(SparkContext.scala:234)
at scala.Option.foreach(Option.scala:236)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:234)
at
com.unittest.LocalTestSparkContext$class.beforeAll(LocalTestSparkContext.scala:35)
at com.unittestt.TestB.beforeAll(TestB.scala:14)
at
org.scalatest.BeforeAndAfterAll$class.beforeAll(BeforeAndAfterAll.scala:187)
at com.unittest.TestB.beforeAll(TestB.scala:14)
at org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:253)
at com.unittest.TestB.run(TestB.scala:14)
at org.scalatest.tools.Framework.org
$scalatest$tools$Framework$$runSuite(Framework.scala:444)
at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:651)
at sbt.TestRunner.runTest$1(TestFramework.scala:76)
at sbt.TestRunner.run(TestFramework.scala:85)
at
sbt.TestFramework$$anon$2$$anonfun$$init$$1$$anonfun$apply$8.apply(TestFramework.scala:202)
at
sbt.TestFramework$$anon$2$$anonfun$$init$$1$$anonfun$apply$8.apply(TestFramework.scala:202)
at
sbt.TestFramework$.sbt$TestFramework$$withContextLoader(TestFramework.scala:185)
at
sbt.TestFramework$$anon$2$$anonfun$$init$$1.apply(TestFramework.scala:202)
at
sbt.TestFramework$$anon$2$$anonfun$$init$$1.apply(TestFramework.scala:202)
at sbt.TestFunction.apply(TestFramework.scala:207)
at sbt.Tests$$anonfun$9.apply(Tests.scala:216)
at sbt.Tests$$anonfun$9.apply(Tests.scala:216)
at sbt.std.Transform$$anon$3$$anonfun$apply$2.apply(System.scala:44)
at sbt.std.Transform$$anon$3$$anonfun$apply$2.apply(System.scala:44)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:235)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
at
sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
