Am trying to execute Apache Pig code from Eclipse as mentioned in http://pig.apache.org/docs/r0.12.0/test.html
Below are the codes :
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.pigtutorial.examples</groupId>
<artifactId>chap01</artifactId>
<version>0.1</version>
<packaging>jar</packaging>
<name>chap01</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-core</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.3</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>jline</groupId>
<artifactId>jline</artifactId>
<version>0.9.5</version>
</dependency>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr-runtime</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>org.apache.pig</groupId>
<artifactId>pig</artifactId>
<version>0.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.pig</groupId>
<artifactId>pigunit</artifactId>
<version>0.12.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
PigUnit Test Case :
import java.io.IOException;
import org.apache.pig.pigunit.PigTest;
import org.apache.pig.tools.parameters.ParseException;
import org.junit.Test;
public class PigUnitTestPractise {
@Test
public void testTop2Queries() throws IOException, ParseException {
String[] args = {
"n=2",
};
PigTest test = new PigTest("resources/top_queries.pig", args);
String[] input = {
"yahoo",
"yahoo",
"yahoo",
"twitter",
"facebook",
"facebook",
"linkedin",
};
String[] output = {
"(yahoo,3)",
"(facebook,2)",
};
test.assertOutput("data", input, "queries_limit", output);
}
}
Error :
java.lang.VerifyError: (class: org/apache/hadoop/mapred/JobTrackerInstrumentation, method: create signature: (Lorg/apache/hadoop/mapred/JobTracker;Lorg/apache/hadoop/mapred/JobConf;)Lorg/apache/hadoop/mapred/JobTrackerInstrumentation;) Incompatible argument to function
at org.apache.hadoop.mapred.LocalJobRunner.<init>(LocalJobRunner.java:573)
at org.apache.hadoop.mapred.JobClient.init(JobClient.java:494)
at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:479)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:158)
at org.apache.pig.PigServer.launchPlan(PigServer.java:1322)
at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1307)
at org.apache.pig.PigServer.storeEx(PigServer.java:978)
at org.apache.pig.PigServer.store(PigServer.java:942)
at org.apache.pig.PigServer.openIterator(PigServer.java:855)
at com.pigtutorial.examples.chap00.TestCurrentTime.testAllCurrentTimeSame(TestCurrentTime.java:62)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
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.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
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)
As per the post java.lang.VerifyError, I may have problem in order of import.
As per How to fix java.lang.VerifyError?, I may be "running against a different version of a library than the code was compiled against".
How to find the exact source of the problem ? Which JAR is creating the problem ?
