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https://issues.apache.org/jira/browse/SPARK-22851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16299059#comment-16299059
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Sean Owen commented on SPARK-22851:
-----------------------------------

I see the same thing. The source release seems fine but the binary release does 
not, and it seems indeed to not actually be gzipped. I suspect the hash is 
correct for the original gzipped tarball. I don't know why that would have 
happened; any ideas [~felixcheung] ? I missed it as I typically just check the 
source archive and let it go at that, as that's the main artifact.

It would definitely be weird if some mirrors had a gzipped archive and some 
not. Are you saying some people get this exact same file gzipped and some not? 
or found some files in the release were right and the others not? the latter is 
what I'm seeing.

> Download mirror for spark-2.2.1-bin-hadoop2.7.tgz has file with incorrect 
> checksum
> ----------------------------------------------------------------------------------
>
>                 Key: SPARK-22851
>                 URL: https://issues.apache.org/jira/browse/SPARK-22851
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.2.1
>            Reporter: John Brock
>            Priority: Critical
>
> The correct sha512 is:
> 349ee4bc95c760259c1c28aaae0d9db4146115b03d710fe57685e0d18c9f9538d0b90d9c28f4031ed45f69def5bd217a5bf77fd50f685d93eb207445787f2685.
> However, the file I downloaded from 
> http://apache.mirrors.pair.com/spark/spark-2.2.1/spark-2.2.1-bin-hadoop2.7.tgz
>  is giving me a different sha256:
> 039935ef9c4813eca15b29e7ddf91706844a52287999e8c5780f4361b736eb454110825224ae1b58cac9d686785ae0944a1c29e0b345532762752abab9b2cba9
> It looks like this mirror has a file that isn't actually gzipped, just 
> tarred. If I ungzip one of the copies of spark-2.2.1-bin-hadoop2.7.tgz with 
> the correct sha512, and take the sha512 of the resulting tar, I get the same 
> incorrect hash above of 
> 039935ef9c4813eca15b29e7ddf91706844a52287999e8c5780f4361b736eb454110825224ae1b58cac9d686785ae0944a1c29e0b345532762752abab9b2cba9.
> I asked some colleagues to download the incorrect file themselves to check 
> the hash -- some of them got a file that was gzipped and some didn't. I'm 
> assuming there's some caching or mirroring happening that may give you a 
> different file than the one I got.



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