我一直在試圖追蹤一些我一直在爲Apache Spark項目編寫的單元/集成測試的問題。Apache Spark Streaming失敗的集成測試
當使用Spark 1.1.1時,我的測試通過了。當我嘗試升級到1.4.0(也嘗試1.4.1)時,測試開始失敗。
我設法減少了將問題重現到下面的小集成測試所需的代碼。
有趣的是,如果我在測試中註釋掉@RunWith註解,測試就會正確傳遞。很明顯,我不需要@RunWith註釋來進行這個減少測試,但真正的測試使用了相當廣泛的mock,所以我寧願不必使用PowerMock。
package com.example;
import org.apache.spark.SparkConf;
import org.apache.spark.streaming.Duration;
import org.apache.spark.streaming.api.java.JavaStreamingContext;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.modules.junit4.PowerMockRunner;
@RunWith(PowerMockRunner.class)
public class SampleTest {
@Before
public void setup() throws Exception {
SparkConf conf = new SparkConf(false).setMaster("local[2]").setAppName("My app");
JavaStreamingContext jsc = new JavaStreamingContext(conf, new Duration(1000));
}
@Test
public void exampleTest() {
}
}
下面是我看到
java.io.IOException: failure to login
at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:796)
at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:748)
at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:621)
at org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2162)
at org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2162)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.util.Utils$.getCurrentUserName(Utils.scala:2162)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:301)
at org.apache.spark.streaming.StreamingContext$.createNewSparkContext(StreamingContext.scala:842)
at org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:80)
at org.apache.spark.streaming.api.java.JavaStreamingContext.<init>(JavaStreamingContext.scala:133)
at com.example.SampleTest.setup(SampleTest.java:19)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.internal.runners.MethodRoadie.runBefores(MethodRoadie.java:133)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:96)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:106)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: javax.security.auth.login.LoginException: Can't find user name
at org.apache.hadoop.security.UserGroupInformation$HadoopLoginModule.commit(UserGroupInformation.java:197)
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 javax.security.auth.login.LoginContext.invoke(LoginContext.java:784)
at javax.security.auth.login.LoginContext.access$000(LoginContext.java:203)
at javax.security.auth.login.LoginContext$5.run(LoginContext.java:721)
at javax.security.auth.login.LoginContext$5.run(LoginContext.java:719)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.login.LoginContext.invokeCreatorPriv(LoginContext.java:718)
at javax.security.auth.login.LoginContext.login(LoginContext.java:591)
at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:771)
... 38 more
各種依賴關係的版本之外顯示如下
- Hadoop的客戶端2.6
- 阿帕奇火花1.4.0/1.4.1
- junit 4.12
- 容易模仿3.31
- 功率模擬1.6.2
我已經與星火的各種版本嘗試這個。上述測試用火花
以下版本傳遞- 1.1.1
- 1.2.2
它開始從火花1.3.0起故障。
任何想法,我需要改變才能使這個工作?
我打算接受這個答案,因爲它解決了這個問題。但是,在單元測試中設置環境變量是一件痛苦的事情。答案也讓我以不同的方式思考問題,並提出了一種替代解決方案。使用@PowerMockIgnore({「org.apache。*」,「akka。*」})註解類也解決了這個問題(但我還沒有花時間看看是否會導致其他問題) – Glen