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https://issues.apache.org/jira/browse/SPARK-22526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16253820#comment-16253820
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mohamed imran commented on SPARK-22526:
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Nope. Actually i am reading some zip files using the sc.binaryfiles from spark. 
But after some 100th file read it gets hangs indefinitely. I was monitoring the 
opened connection of every spark binary file read. None of the connections were 
closed after every read of each binary files. Yes I am sure it is a not a 
network or S3 issue. 

> Spark hangs while reading binary files from S3
> ----------------------------------------------
>
>                 Key: SPARK-22526
>                 URL: https://issues.apache.org/jira/browse/SPARK-22526
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.2.0
>            Reporter: mohamed imran
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> Hi,
> I am using Spark 2.2.0(recent version) to read binary files from S3. I use 
> sc.binaryfiles to read the files.
> It is working fine until some 100 file read but later it get hangs 
> indefinitely from 5 up to 40 mins like Avro file read issue(it was fixed in 
> the later releases)
> I tried setting the fs.s3a.connection.maximum to some maximum values but 
> didn't help.
> And finally i ended up using the spark speculation parameter set which is 
> again didnt help much. 
> One thing Which I observed is that it is not closing the connection after 
> every read of binary files from the S3.
> example :- sc.binaryFiles("s3a://test/test123.zip")
> Please look into this major issue!      



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