Hi, recently I wanna ingest batch data in hdfs, which is in ORC format. And I have already include druid-orc-extension-0.9.2.jar into extensions directory, and add this extension into commom_runtime.propreties as well. However, I still meet class not found exception , just as following:
Error: java.lang.RuntimeException: readObject can't find class
at org.apache.hadoop.mapreduce.lib.input.TaggedInputSplit.readClass(TaggedInputSplit.java:136)
at org.apache.hadoop.mapreduce.lib.input.TaggedInputSplit.readFields(TaggedInputSplit.java:120)
at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:71)
at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:42)
at org.apache.hadoop.mapred.MapTask.getSplitDetails(MapTask.java:372)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:754)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.hive.ql.io.orc.OrcNewSplit not found
at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2101)
at org.apache.hadoop.mapreduce.lib.input.TaggedInputSplit.readClass(TaggedInputSplit.java:134)
BTW, I set mapreduce.job.classloader=true. And use druid with 0.9.2 version and hadoop 2.5.0-cdh5.3.2
Thanks.
On upgrading from 0.9.1.1 to 0.9.2 we found a similar issue on batch ingestion. Using mapreduce.job.classloader = true did not work for us, but using mapreduce.job.user.classpath.first = true on the indexing task tuning config did the trick.
Joan
By setting *mapreduce.job.user.classpath.first = true *, I got some errors about Jackson, just like this:
Caused by: java.lang.VerifyError: class com.fasterxml.jackson.datatype.guava.deser.HostAndPortDeserializer overrides final method deserialize.(Lcom/fasterxml/jackson/core/JsonParser;Lcom/fasterxml/jackson/databind/DeserializationContext;)Ljava/lang/Object;
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at com.fasterxml.jackson.datatype.guava.GuavaModule.setupModule(GuavaModule.java:22)
at com.fasterxml.jackson.databind.ObjectMapper.registerModule(ObjectMapper.java:525)
at io.druid.jackson.DefaultObjectMapper.<init>(DefaultObjectMapper.java:47)
at io.druid.jackson.DefaultObjectMapper.<init>(DefaultObjectMapper.java:35)
at io.druid.jackson.JacksonModule.jsonMapper(JacksonModule.java:46)
at io.druid.jackson.JacksonModule$$FastClassByGuice$$fa1bdb70.invoke(<generated>)
at com.google.inject.internal.ProviderMethod$FastClassProviderMethod.doProvision(ProviderMethod.java:264)
at com.google.inject.internal.ProviderMethod$Factory.provision(ProviderMethod.java:401)
at com.google.inject.internal.ProviderMethod$Factory.get(ProviderMethod.java:376)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:194)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:56)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
And if I turn to set ***mapreduce.job.classloader = true, I just got the error above.***
在 2017年4月1日星期六 UTC+8上午12:03:22，Joan Cardona写道：