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Posted to mapreduce-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2019/01/18 21:41:00 UTC
[jira] [Assigned] (MAPREDUCE-7091) Speed up terasort on S3a
[ https://issues.apache.org/jira/browse/MAPREDUCE-7091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran reassigned MAPREDUCE-7091:
-----------------------------------------
Assignee: Steve Loughran
> Speed up terasort on S3a
> ------------------------
>
> Key: MAPREDUCE-7091
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7091
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: examples
> Affects Versions: 3.1.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
>
> Terasort is very slow on S3, because it still uses the classic rename-to-commit algorithm on the sort, even while teragen and the reporting can use the new committer
> Reason: {{org.apache.hadoop.examples.terasort.TeraOutputFormat}} has overriden {{getOutputCommitter}} even though it doesn't need to.
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