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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/12/08 15:56:00 UTC
[jira] [Work started] (HADOOP-13871)
ITestS3AInputStreamPerformance.testTimeToOpenAndReadWholeFileBlocks
performance on branch-2.8 awful
[ https://issues.apache.org/jira/browse/HADOOP-13871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HADOOP-13871 started by Steve Loughran.
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> ITestS3AInputStreamPerformance.testTimeToOpenAndReadWholeFileBlocks performance on branch-2.8 awful
> ---------------------------------------------------------------------------------------------------
>
> Key: HADOOP-13871
> URL: https://issues.apache.org/jira/browse/HADOOP-13871
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.0
> Environment: landsat bucket from the UK
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Attachments: org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance-output.txt
>
>
> The ITestS3AInputStreamPerformance.testTimeToOpenAndReadWholeFileBlocks takes 15s on branch-2, but is now taking minutes on branch-2.8.
> This is a regression, and it's surfacing on some internal branches too. Even where the code hasn't changed. -It does not happen on branch-2, which has a later SDK.-
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