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https://issues.apache.org/jira/browse/HADOOP-13871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15743456#comment-15743456
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Mingliang Liu commented on HADOOP-13871:
----------------------------------------
+1
> ITestS3AInputStreamPerformance.testTimeToOpenAndReadWholeFileBlocks
> performance 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, 2.9.0, 3.0.0-alpha2
> Environment: landsat bucket from the UK
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Attachments: HADOOP-13871-001.patch, HADOOP-13871-002.patch,
> HADOOP-13871-003.patch,
> org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance-output.txt
>
>
> The ITestS3AInputStreamPerformance.testTimeToOpenAndReadWholeFileBlocks takes
> 15s on branch-2, but is now taking minutes.
> 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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