我想通過使用avro存儲格式的jdbc查詢配置單元表,但是我在查詢生成的mr作業中找到類未找到的錯誤。奇怪的是,我可以在沒有發生異常的情況下運行hive shell中的查詢。如何爲從hive jdbc查詢啓動的mr作業指定其他jar?
我可以運行一個查詢,不產生地圖縮小作業(select * from table limit 10
),它工作正常。
2014-03-12 10:23:34,040 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : java.io.IOException: java.lang.reflect.InvocationTargetException
at org.apache.hadoop.hive.io.HiveIOExceptionHandlerChain.handleRecordReaderCreationException(HiveIOExceptionHandlerChain.java:97)
at org.apache.hadoop.hive.io.HiveIOExceptionHandlerUtil.handleRecordReaderCreationException(HiveIOExceptionHandlerUtil.java:57)
at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.initNextRecordReader(HadoopShimsSecure.java:344)
at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.<init>(HadoopShimsSecure.java:291)
at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileInputFormatShim.getRecordReader(HadoopShimsSecure.java:405)
at org.apache.hadoop.hive.ql.io.CombineHiveInputFormat.getRecordReader(CombineHiveInputFormat.java:560)
at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.<init>(MapTask.java:168)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:409)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:165)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:160)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.initNextRecordReader(HadoopShimsSecure.java:330)
... 11 more
Caused by: java.lang.NoClassDefFoundError: org/apache/avro/mapred/FsInput
at org.apache.hadoop.hive.ql.io.avro.AvroGenericRecordReader.<init>(AvroGenericRecordReader.java:82)
at org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat.getRecordReader(AvroContainerInputFormat.java:51)
at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.<init>(CombineHiveRecordReader.java:65)
... 16 more
Caused by: java.lang.ClassNotFoundException: org.apache.avro.mapred.FsInput
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 19 more
的的當通過hive外殼程序或oozie工作流程運行hive查詢時,配置並拾取輔助Jar,問題只發生在製作跨越地圖/縮減作業的jdbc查詢時。 – Jeff
從配置單元命令行執行Hive查詢時,我遇到了同樣的問題。上面Remus的解決方案+重新啓動了蜂巢控制檯解決了它。 – Svend