conf not set for the default Codec when initializing a Reader for a
record-compressed sequence file
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Key: HADOOP-835
URL: http://issues.apache.org/jira/browse/HADOOP-835
Project: Hadoop
Issue Type: Bug
Components: io
Affects Versions: 0.9.2
Reporter: Hairong Kuang
Assigned To: Hairong Kuang
Fix For: 0.10.0
Because the conf field of a default Codec does not get set when initializing a
reader for a record-compressed sequence file, a NullPointerException is thrown
when attempting to create an input stream for the default Codec as shown in the
following stack trace:
java.lang.NullPointerException
at
org.apache.hadoop.io.compress.DefaultCodec.createInputStream(DefaultCodec.java:59)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1004)
at org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:927)
at org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:918)
at
org.apache.hadoop.mapred.SequenceFileRecordReader.(SequenceFileRecordReader.java:39)
at
org.apache.hadoop.mapred.SequenceFileInputFormat.getRecordReader(SequenceFileInputFormat.java:55)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:180)
at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1388)
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