Paul Wilkinson created HADOOP-8582:
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Summary: Improve error reporting for GZIP-compressed SequenceFiles
with missing native libraries.
Key: HADOOP-8582
URL: https://issues.apache.org/jira/browse/HADOOP-8582
Project: Hadoop Common
Issue Type: Improvement
Components: io
Environment: Centos 5.8, Java 6 Update 26
Reporter: Paul Wilkinson
Priority: Minor
At present it is not possible to write or read block-compressed SequenceFiles
using the GZIP codec without the native libraries being available.
The SequenceFile.Writer code checks for the availability of native libraries
and throws a useful exception, but the SequenceFile.Reader doesn't do the same:
Exception in thread "main" java.io.EOFException
at java.util.zip.GZIPInputStream.readUByte(GZIPInputStream.java:249)
at java.util.zip.GZIPInputStream.readUShort(GZIPInputStream.java:239)
at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:142)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:58)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:67)
at
org.apache.hadoop.io.compress.GzipCodec$GzipInputStream$ResetableGZIPInputStream.<init>(GzipCodec.java:95)
at
org.apache.hadoop.io.compress.GzipCodec$GzipInputStream.<init>(GzipCodec.java:104)
at
org.apache.hadoop.io.compress.GzipCodec.createInputStream(GzipCodec.java:173)
at
org.apache.hadoop.io.compress.GzipCodec.createInputStream(GzipCodec.java:183)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1591)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1493)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1480)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
at test.SequenceReader.read(SequenceReader.java:23)
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