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Posted to common-issues@hadoop.apache.org by "Laurent Goujon (JIRA)" <ji...@apache.org> on 2015/12/24 03:38:49 UTC

[jira] [Updated] (HADOOP-12677) DecompressorStream throws IndexOutOfBoundsException when calling skip(long)

     [ https://issues.apache.org/jira/browse/HADOOP-12677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Laurent Goujon updated HADOOP-12677:
------------------------------------
    Component/s: io

> DecompressorStream throws IndexOutOfBoundsException when calling skip(long)
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-12677
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12677
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>            Reporter: Laurent Goujon
>
> DecompressorStream.skip(long) throws an IndexOutOfBoundException when using a long bigger than Integer.MAX_VALUE
> This is because of this cast from long to int: https://github.com/apache/hadoop-common/blob/HADOOP-3628/src/core/org/apache/hadoop/io/compress/DecompressorStream.java#L125
> The fix is probably to do the cast after applying Math.min: in that case, it should not be an issue since it should not be bigger than the buffer size (512)



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