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Posted to common-issues@hadoop.apache.org by "Paul Wilkinson (JIRA)" <ji...@apache.org> on 2012/07/10 14:48:33 UTC
[jira] [Updated] (HADOOP-8582) Improve error reporting for
GZIP-compressed SequenceFiles with missing native libraries.
[ https://issues.apache.org/jira/browse/HADOOP-8582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paul Wilkinson updated HADOOP-8582:
-----------------------------------
Attachment: HADOOP-8582.diff
This should give a more helpful error message.
> 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
> Attachments: HADOOP-8582.diff
>
>
> 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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