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https://issues.apache.org/jira/browse/HADOOP-6707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12876138#action_12876138
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Ruyue Ma commented on HADOOP-6707:
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You have a sequencefile compressed with lzocodec. If you randomly sync(not
seek) to a record block, the decompression will not work.
I guess that MapFile maybe have the bug also.
> BlockDecompressorStream.resetState() has a bug, which often causes the block
> decompressing not to work.
> -------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6707
> URL: https://issues.apache.org/jira/browse/HADOOP-6707
> Project: Hadoop Common
> Issue Type: Bug
> Components: io
> Reporter: Ruyue Ma
> Assignee: Ruyue Ma
> Fix For: 0.21.0
>
>
> BlockDecompressorStream.resetState() has a bug.
> The method of resetState() doesn't reinit the two member variables(int
> originalBlockSize; int noUncompressedBytes) of Class BlockDecompressorStream.
>
> This bug will cause the block decompressing not to work.
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