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https://issues.apache.org/jira/browse/HADOOP-16193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16810320#comment-16810320
 ] 

Aaron Fabbri commented on HADOOP-16193:
---------------------------------------

Patch looks good to me but I had a failure running the test:

{noformat}
[INFO] Running 
org.apache.hadoop.fs.contract.s3a.ITestS3AContractMultipartUploader
[ERROR] Tests run: 16, Failures: 0, Errors: 1, Skipped: 1, Time elapsed: 57.812 
s <<< FAILURE! - in 
org.apache.hadoop.fs.contract.s3a.ITestS3AContractMultipartUploader
[ERROR] 
testMultipartOverlapWithTransientFile(org.apache.hadoop.fs.contract.s3a.ITestS3AContractMultipartUploader)
  Time elapsed: 32.224 s  <<< ERROR!
java.io.FileNotFoundException: No such file or directory: 
s3a://fabbri-self/test/testMultipartOverlapWithTransientFile
        at 
org.apache.hadoop.fs.contract.s3a.ITestS3AContractMultipartUploader.lambda$testMultipartOverlapWithTransientFile$0(ITestS3AContractMultipartUploader.java:210)
        at 
org.apache.hadoop.fs.contract.s3a.ITestS3AContractMultipartUploader.testMultipartOverlapWithTransientFile(ITestS3AContractMultipartUploader.java:209)

[INFO]
[INFO] Results:
[INFO]
[ERROR] Errors: 
[ERROR]   
ITestS3AContractMultipartUploader.testMultipartOverlapWithTransientFile:209->lambda$testMultipartOverlapWithTransientFile$0:210
 ยป FileNotFound
[INFO]
[ERROR] Tests run: 16, Failures: 0, Errors: 1, Skipped: 1

{noformat}

> add extra S3A MPU test to see what happens if a file is created during the MPU
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-16193
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16193
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>
> Proposed extra test for the S3A MPU: if you create and then delete a file 
> while an MPU is in progress, when you finally complete the MPU the new data 
> is present.
> This verifies that the other FS operations don't somehow cancel the 
> in-progress upload, and that eventual consistency brings the latest value out.



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