I am writing a simple query on our hive table and I am getting some
exception-
select count(*) from table1 where dt='20120731';
java.io.IOException: IO error in map input file
hdfs://ares-nn/apps/hdmi-technology/b_apdpds/real-time_new/20120731/PDS_HADOOP_REALTIME_EXPORT-part-3-2
at
org.apache.hadoop.mapred.MapTask$TrackedRecordReader.moveToNext(MapTask.java:220)
at
org.apache.hadoop.mapred.MapTask$TrackedRecordReader.next(MapTask.java:197)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:48)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:403)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:337)
at org.apache.hadoop.mapred.Child$4.run(Child.java:242)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:236)
*Caused by: java.io.EOFException*
at java.io.DataInputStream.readFully(DataInputStream.java:180)
at
org.apache.hadoop.io.DataOutputBuffer$Buffer.write(DataOutputBuffer.java:63)
at
org.apache.hadoop.io.DataOutputBuffer.write(DataOutputBuffer.java:101)
at
org.apache.hadoop.io.SequenceFile$Reader.readBuffer(SequenceFile.java:1646)
at
org.apache.hadoop.io.SequenceFile$Reader.seekToCurrentValue(SequenceFile.java:1712)
at
org.apache.hadoop.io.SequenceFile$Reader.getCurrentValue(SequenceFile.java:1787)
at
org.apache.hadoop.mapred.SequenceFileRecordReader.getCurrentValue(SequenceFileRecordReader.java:103)
at
org.apache.hadoop.mapred.SequenceFileRecordReader.next(SequenceFileRecordReader.java:78)
at
org.apache.hadoop.hive.ql.io.HiveRecordReader.next(HiveRecordReader.java:67)
at
org.apache.hadoop.hive.ql.io.HiveRecordReader.next(HiveRecordReader.java:33)
at
org.apache.hadoop.mapred.MapTask$TrackedRecordReader.moveToNext(MapTask.java:215)
... 9 more
Can anyone suggest me what does *Caused by: java.io.EOFException *means
here? And when I ran the same query for different date (dt), then it works
fine.
