"Stream closed" error while reading Pig temp files (results of intermediate
jobs)
---------------------------------------------------------------------------------
Key: PIG-1977
URL: https://issues.apache.org/jira/browse/PIG-1977
Project: Pig
Issue Type: Bug
Affects Versions: 0.8.0
Reporter: Richard Ding
Assignee: Richard Ding
Fix For: 0.9.0, 0.8.0
In certain cases when compression of temporary files is on Pig scripts fail
with following exception:
{code}
java.io.IOException: Stream closed at
java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:145) at
java.io.BufferedInputStream.fill(BufferedInputStream.java:189) at
java.io.BufferedInputStream.read(BufferedInputStream.java:237) at
java.io.DataInputStream.readByte(DataInputStream.java:248) at
org.apache.hadoop.io.file.tfile.Utils.readVLong(Utils.java:196) at
org.apache.hadoop.io.file.tfile.Utils.readVInt(Utils.java:168) at
org.apache.hadoop.io.file.tfile.Chunk$ChunkDecoder.readLength(Chunk.java:103) at
org.apache.hadoop.io.file.tfile.Chunk$ChunkDecoder.checkEOF(Chunk.java:124) at
org.apache.hadoop.io.file.tfile.Chunk$ChunkDecoder.close(Chunk.java:190) at
java.io.FilterInputStream.close(FilterInputStream.java:155) at
org.apache.pig.impl.io.TFileRecordReader.nextKeyValue(TFileRecordReader.java:85)
at
org.apache.pig.impl.io.TFileStorage.getNext(TFileStorage.java:76) at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.nextKeyValue(PigRecordReader.java:187)
at
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:474)
at
org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67) at
org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143) at
org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:676) at
org.apache.hadoop.mapred.MapTask.run(MapTask.java:336) 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)
{code}
The workaround is to turn off the compression (pig.tmpfilecompression=false).
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