seems the tasktracker could not locate org.apache.hadoop.io.compress. SnappyCodec. did you deploy on every tasktracker or package into the mapreduce job jar?
On Thu, Mar 22, 2012 at 7:30 PM, hadoop hive <hadooph...@gmail.com> wrote: > HI Folks, > > i follow all ther steps and build and install snappy and after creating > sequencetable when i m insert overwrite the data into this table its > throwing this error. > > > java.io.IOException: Cannot create an instance of InputFormat class > org.apache.hadoop.mapred.TextInputFormat as specified in mapredWork! > at > org.apache.hadoop.hive.ql.io.HiveInputFormat.getInputFormatFromCache(HiveInputFormat.java:197) > at > org.apache.hadoop.hive.ql.io.HiveInputFormat.getRecordReader(HiveInputFormat.java:236) > at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:338) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307) > at org.apache.hadoop.mapred.Child.main(Child.java:170) > Caused by: java.lang.RuntimeException: Error in configuring object > at > org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93) > at > org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64) > at > org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117) > at > org.apache.hadoop.hive.ql.io.HiveInputFormat.getInputFormatFromCache(HiveInputFormat.java:193) > ... 4 more > Caused by: java.lang.reflect.InvocationTargetException > 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.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88) > ... 7 more > Caused by: java.lang.IllegalArgumentException: Compression codec > org.apache.hadoop.io.compress.SnappyCodec not found. > at > org.apache.hadoop.io.compress.CompressionCodecFactory.getCodecClasses(CompressionCodecFactory.java:96) > at > org.apache.hadoop.io.compress.CompressionCodecFactory.(CompressionCodecFactory.java:134) > at > org.apache.hadoop.mapred.TextInputFormat.configure(TextInputFormat.java:41) > ... 12 more > Caused by: java.lang.ClassNotFoundException: > org.apache.hadoop.io.compress.SnappyCodec > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:247) > at > org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:762) > at > org.apache.hadoop.io.compress.CompressionCodecFactory.getCodecClasses(CompressionCodecFactory.java:89) > ... 14 more > > > >
