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https://issues.apache.org/jira/browse/HADOOP-16050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-16050:
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Issue Type: Sub-task (was: Bug)
Parent: HADOOP-15620
> Support setting cipher suites for s3a file system
> -------------------------------------------------
>
> Key: HADOOP-16050
> URL: https://issues.apache.org/jira/browse/HADOOP-16050
> Project: Hadoop Common
> Issue Type: Sub-task
> Affects Versions: 2.9.1
> Reporter: Justin Uang
> Priority: Major
> Attachments: Screen Shot 2019-01-17 at 2.57.06 PM.png
>
>
> We have found that when running the S3AFileSystem, it picks GCM as the ssl
> cipher suite. Unfortunately this is well known to be slow on java 8:
> [https://stackoverflow.com/questions/25992131/slow-aes-gcm-encryption-and-decryption-with-java-8u20.]
>
> In practice we have seen that it can take well over 50% of our CPU time in
> spark workflows. We should add an option to set the list of cipher suites we
> would like to use. !Screen Shot 2019-01-17 at 2.57.06 PM.png!
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