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    Expert tip

    There's probably a problem with your dependencies, check if you used "hadoop-yarn-common". Also check if you have the right version of hadoop for the version of mapreduce that you're using.

Solutions on the web

via Apache's JIRA Issue Tracker by Hitesh Shah, 1 year ago
via Apache's JIRA Issue Tracker by Hitesh Shah, 1 year ago
via Stack Overflow by jgp
, 1 year ago
via Stack Overflow by Arnab Sharma
, 2 years ago
HADOOP_HOME or hadoop.home.dir are not set.
via Stack Overflow by Alchemist
, 1 year ago
java.io.IOException: HADOOP_HOME or hadoop.home.dir are not set.	at org.apache.hadoop.util.Shell.checkHadoopHome(Shell.java:163)	at org.apache.hadoop.util.Shell.(Shell.java:186)	at org.apache.hadoop.util.StringUtils.(StringUtils.java:77)	at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.setInputPaths(FileInputFormat.java:339)	at org.apache.pig.builtin.PigStorage.setLocation(PigStorage.java:374)	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.getJob(JobControlCompiler.java:473)	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.compile(JobControlCompiler.java:294)	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:177)	at org.apache.pig.PigServer.launchPlan(PigServer.java:1264)	at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1249)	at org.apache.pig.PigServer.execute(PigServer.java:1239)	at org.apache.pig.PigServer.access$400(PigServer.java:121)	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1553)	at org.apache.pig.PigServer.registerQuery(PigServer.java:516)	at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:991)	at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:412)	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:194)	at org.apache.pig.PigServer.registerScript(PigServer.java:590)	at org.apache.pig.PigServer$registerScript.call(Unknown Source)	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)	at org.apache.hadoop.fs.swift.integration.IntegrationTestBase.registerPigResource(IntegrationTestBase.groovy:196)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:267)	at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:52)	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:46)	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)	at org.apache.hadoop.fs.swift.integration.pig.TestPig.testLoadGeneratedData(TestPig.groovy:48)	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:45)	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray2(ReflectionUtils.java:208)	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:158)	at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:86)	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:95)