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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AVRO-1326) Files written with bzip2 codec cannot be read
Date Wed, 08 May 2013 17:47:16 GMT

     [ https://issues.apache.org/jira/browse/AVRO-1326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Doug Cutting updated AVRO-1326:

    Priority: Critical  (was: Minor)
> Files written with bzip2 codec cannot be read
> ---------------------------------------------
>                 Key: AVRO-1326
>                 URL: https://issues.apache.org/jira/browse/AVRO-1326
>             Project: Avro
>          Issue Type: Bug
>          Components: java
>    Affects Versions: 1.7.4
>            Reporter: Kevin Irwin
>            Assignee: Doug Cutting
>            Priority: Critical
>             Fix For: 1.7.5
>         Attachments: AVRO-1326.patch, BzipTest.java
> When attempting to read a file written using the bzip2 codec for compression, the following
exception is thrown upon completion of the first encoded block:
> Exception in thread "main" org.apache.avro.AvroRuntimeException: java.io.IOException:
Block read partially, the data may be corrupt
> 	at org.apache.avro.file.DataFileStream.hasNext(DataFileStream.java:210)
> 	at BzipTests.main(BzipTests.java:28)
> Caused by: java.io.IOException: Block read partially, the data may be corrupt
> 	at org.apache.avro.file.DataFileStream.hasNext(DataFileStream.java:194)
> 	... 1 more
> An inspection of BZip2Codec indicates the root cause is in the compress() method. The
entire supplied ByteBuffer is compressed, not just the valid portion of the buffer.  On decompress,
the resultant length is then larger than the recorded uncompressed block size.
> On line 51:
> outputStream.write(uncompressedData.array());
> should be:
> outputStream.write(uncompressedData.array(), uncompressedData.position(), uncompressedData.remaining());

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