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https://issues.apache.org/jira/browse/HADOOP-15813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HADOOP-15813:
-------------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Pushed the patch to trunk ~ all the way to branch-2.8.
Thanks [~daryn] for identifying such a big perf boost. Really appreciate the
work!
> Enable more reliable SSL connection reuse
> -----------------------------------------
>
> Key: HADOOP-15813
> URL: https://issues.apache.org/jira/browse/HADOOP-15813
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Affects Versions: 2.6.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Major
> Fix For: 2.10.0, 3.0.4, 3.3.0, 2.8.6, 3.2.1, 2.9.3, 3.1.3
>
> Attachments: HADOOP-15813.patch, HADOOP-15813.patch, KMS
> throughput.png, profiler after HADOOP-15813.png, profiler prior to
> HADOOP-15813.png
>
>
> The java keep-alive cache relies on instance equivalence of the SSL socket
> factory. In many java versions, SSLContext#getSocketFactory always returns a
> new instance which completely breaks the cache. Clients flooding a service
> with lingering per-request connections that can lead to port exhaustion. The
> hadoop SSLFactory should cache the socket factory associated with the context.
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