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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13871) ITestS3AInputStreamPerformance.testTimeToOpenAndReadWholeFileBlocks performance on branch-2.8 awful
Date Wed, 07 Dec 2016 18:14:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15729452#comment-15729452
] 

Steve Loughran commented on HADOOP-13871:
-----------------------------------------

For reference, curl
{code}
curl -O https://landsat-pds.s3.amazonaws.com/scene_list.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 37.1M  100 37.1M    0     0  4545k      0  0:00:08  0:00:08 --:--:-- 6303k
{code}

> 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
>
> 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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