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Posted to issues@tez.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2014/11/04 05:35:34 UTC
[jira] [Assigned] (TEZ-1733) TezMerger should sort FileChunks on
decompressed size
[ https://issues.apache.org/jira/browse/TEZ-1733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gopal V reassigned TEZ-1733:
----------------------------
Assignee: Gopal V
> TezMerger should sort FileChunks on decompressed size
> -----------------------------------------------------
>
> 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: Gopal V
> Priority: Critical
> Attachments: TEZ-1733.1.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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