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Posted to issues@spark.apache.org by "mohamed imran (JIRA)" <ji...@apache.org> on 2017/11/24 12:32:00 UTC
[jira] [Commented] (SPARK-22526) Document closing of
PortableDataInputStream in binaryFiles
[ https://issues.apache.org/jira/browse/SPARK-22526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16265232#comment-16265232 ]
mohamed imran commented on SPARK-22526:
---------------------------------------
[~stevel@apache.org] Thanks for your suggestions.
I did made change in my code as per your inputs and tested. It worked fine without any issues.
ubuntu@test.0:~$ netstat -a | grep CLOSE_WAIT | wc
5 30 400
ubuntu@test.0:~$ netstat -a | grep CLOSE_WAIT | wc
4 24 320
ubuntu@test.0:~$ netstat -a | grep CLOSE_WAIT | wc
2 12 160
It is is closing the stream properly and no more hangs while reading from S3.
Sure. I want to add it in the docs with the proper syntax. How can i Edit it?
> Document closing of PortableDataInputStream in binaryFiles
> ----------------------------------------------------------
>
> Key: SPARK-22526
> URL: https://issues.apache.org/jira/browse/SPARK-22526
> Project: Spark
> Issue Type: Improvement
> Components: Documentation, Spark Core
> Affects Versions: 2.2.0
> Reporter: mohamed imran
> Priority: Minor
> 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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