BlockDecompressorStream get EOF exception when decompressing the file
compressed from empty file
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Key: HADOOP-6663
URL: https://issues.apache.org/jira/browse/HADOOP-6663
Project: Hadoop Common
Issue Type: Bug
Components: io
Affects Versions: 0.20.2
Reporter: Xiao Kang
An empty file can be compressed using BlockDecompressorStream, which is for
block-based compressiong algorithm such as LZO. However, when decompressing the
compressed file, BlockDecompressorStream get EOF exception.
Here is a typical exception stack:
java.io.EOFException
at
org.apache.hadoop.io.compress.BlockDecompressorStream.rawReadInt(BlockDecompressorStream.java:125)
at
org.apache.hadoop.io.compress.BlockDecompressorStream.getCompressedData(BlockDecompressorStream.java:96)
at
org.apache.hadoop.io.compress.BlockDecompressorStream.decompress(BlockDecompressorStream.java:82)
at
org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:74)
at java.io.InputStream.read(InputStream.java:85)
at org.apache.hadoop.util.LineReader.readLine(LineReader.java:134)
at org.apache.hadoop.mapred.LineRecordReader.next(LineRecordReader.java:134)
at org.apache.hadoop.mapred.LineRecordReader.next(LineRecordReader.java:39)
at
org.apache.hadoop.mapred.MapTask$TrackedRecordReader.moveToNext(MapTask.java:186)
at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.next(MapTask.java:170)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:48)
at org.apache.hadoop.streaming.PipeMapRunner.run(PipeMapRunner.java:18)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:334)
at org.apache.hadoop.mapred.Child.main(Child.java:196)
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