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https://issues.apache.org/jira/browse/TEZ-500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13976459#comment-13976459
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Siddharth Seth commented on TEZ-500:
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Looks like this got fixed as part of TEZ-503. The append(Object key, Object
value) method was not respecting the rle flag.
> RLE in IFile does not seem to work correctly
> --------------------------------------------
>
> Key: TEZ-500
> URL: https://issues.apache.org/jira/browse/TEZ-500
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Siddharth Seth
>
> The compressed length reported by the writer is typically larger than the
> Uncompressed length. The size of the output file generated matches the
> uncompressed length.
> The Shuffle fetchers allocate buffers based on the compressed length, and
> pull that much data. As a result the entire contents are not pulled in.
> Also, even if the entire content is pulled in - nextRawKey, nextRawValue ends
> up failing the moment a repeated key is hit.
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