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https://issues.apache.org/jira/browse/HADOOP-15735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-15735:
------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.7.8
           Status: Resolved  (was: Patch Available)

thanks for doing this, especially the testing. Fix will be in 2.7.8

Note that spark rolled back from 2.7.7 to 2.7.6 because part of a security 
lockdown broke things...that will need to be addressed in the same release 
before they can move up

> backport HADOOP-11687 for hadoop-aws 2.7.x
> ------------------------------------------
>
>                 Key: HADOOP-15735
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15735
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/s3
>    Affects Versions: 2.7.7
>            Reporter: MunShik JOUNG
>            Assignee: MunShik JOUNG
>            Priority: Trivial
>             Fix For: 2.7.8
>
>         Attachments: 
> 0001-HADOOP-12970-Intermitent-SignatureDoesNotMatch-Excep.patch
>
>
> HADOOP-12970 Intermitent SignatureDoesNotMatch Exception is fixed by 
> HADOOP-11687. 
> And from hadoop-aws >= 2.8, HADOOP-11687 is applied. but Spark 2.3.1 is still 
> using hadoop-aws 2.7.7. 
> I was stumpled upon Intermitent SignatureDoesNotMatch Exception with s3 with 
> spark 2.3.1. So I guess backporting might benefit some spark users. In my 
> situation, SignatureDoesNotMatch was reliably reproducible (4 out of 8 
> attemp). And after using patched version symptom was not seen (0 out of 10)



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