SequenceFile fails task with NullPointerException in code initialization
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Key: HADOOP-529
URL: http://issues.apache.org/jira/browse/HADOOP-529
Project: Hadoop
Issue Type: Bug
Components: mapred
Affects Versions: 0.6.0
Reporter: Sanjay Dahiya
Priority: Blocker
Fix For: 0.6.1
Sequence file fails in following block of code in 0.6 hadoop ( Sep 13th trunk )
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if (decompress) {
valInFilter = this.codec.createInputStream(valBuffer); ---> throws
NullPointerException
this.codec is apparently not initialized in
if (version >= CUSTOM_COMPRESS_VERSION && this.decompress) {
try {
this.codec = (CompressionCodec) <---- Init code.
and is used later. It should probably check for version also before using the
this.codec.
2006-09-13 07:37:55,010 INFO org.apache.hadoop.mapred.TaskInProgress: Error
from task_0003_m_001601_0: java.lang.NullPointerException
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1001)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:933)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:924)
at
org.apache.hadoop.mapred.SequenceFileRecordReader.<init>(SequenceFileRecordReader.java:37)
at
org.apache.hadoop.mapred.SequenceFileInputFormat.getRecordReader(SequenceFileInputFormat.java:53)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:175)
at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1066)
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