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https://issues.apache.org/jira/browse/TEZ-1733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated TEZ-1733:
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Summary: TezMerger should sort FileChunks on size when merging (was:
TezMerger should sort FileChunks on decompressed size)
> TezMerger should sort FileChunks on size when merging
> -----------------------------------------------------
>
> Key: TEZ-1733
> URL: https://issues.apache.org/jira/browse/TEZ-1733
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.5.2
> Reporter: Gopal V
> Assignee: Prakash Ramachandran
> Priority: Critical
> Attachments: TEZ-1733.1.patch, TEZ-1733.1.patch, TEZ-1733.2.patch,
> TEZ-1733.3.patch
>
>
> MAPREDUCE-3685 fixed the Merger sort order for file chunks to use the
> decompressed size, to cut-down on CPU and IO costs.
> TezMerger needs an equivalent sorted TreeSet which sorts by the data with-in
> sizes rather than actual file sizes.
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