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Posted to common-dev@hadoop.apache.org by "stack@archive.org (JIRA)" <ji...@apache.org> on 2006/05/15 20:23:06 UTC
[jira] Updated: (HADOOP-219) SequenceFile#handleChecksumException
NPE
[ http://issues.apache.org/jira/browse/HADOOP-219?page=all ]
stack@archive.org updated HADOOP-219:
-------------------------------------
Attachment: hadoop-219.patch
If no conf, default to throwing the checksum error.
> SequenceFile#handleChecksumException NPE
> ----------------------------------------
>
> Key: HADOOP-219
> URL: http://issues.apache.org/jira/browse/HADOOP-219
> Project: Hadoop
> Type: Bug
> Components: io
> Reporter: stack@archive.org
> Priority: Trivial
> Attachments: hadoop-219.patch
>
> The SequenceFile#handleChecksumException assumes the conf data member has been set. It will not be set if we use the 'Reader(FileSystem fs, Path file, int bufferSize, long start, long length)' constructor. The latter is used by ReduceTask Sorter:
> java.lang.NullPointerException
> at org.apache.hadoop.io.SequenceFile$Reader.handleChecksumException(SequenceFile.java:407)
> at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:400)
> at org.apache.hadoop.io.SequenceFile$Sorter$MergeStream.next(SequenceFile.java:837)
> at org.apache.hadoop.io.SequenceFile$Sorter$MergeQueue.merge(SequenceFile.java:881)
> at org.apache.hadoop.io.SequenceFile$Sorter$MergePass.run(SequenceFile.java:766)
> at org.apache.hadoop.io.SequenceFile$Sorter.mergePass(SequenceFile.java:702)
> at org.apache.hadoop.io.SequenceFile$Sorter.sort(SequenceFile.java:528)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:253)
> at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:787)
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