[HADOOP-13871] ITestS3AInputStreamPerformance.testTimeToOpenAndReadWholeFileBlocks performance awful

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.0, 2.9.0, 3.0.0-alpha2
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Component/s: fs/s3

Environment

landsat bucket from the UK

• Hadoop Flags: Reviewed
• Assignee: Steve Loughran
• Reporter: Steve Loughran
• Created: 07/Dec/16 15:22
• Updated: 12/Dec/16 23:22
• Resolved: 12/Dec/16 23:12

Description

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.

Issue Links

• is related to: HADOOP-13873 log DNS addresses on s3a init