John Zhuge commented on HADOOP-13597:

Great comments!

bq. Suggest to name the new config key names XXXX_KEY

In the case, we will have mixed naming style in KMSConfiguration. Is that ok? 
The new properties are much fewer than old ones especially after I move SSL 
properties to ssl-server.xml.

bq. We should add basic testing to KMSHttpServer

KMSHttpServer is called by MiniKMS thus all its methods are exercised by KMS 
unit tests.Should I add tests to ensure legacy env variables are still 

> Switch KMS from Tomcat to Jetty
> -------------------------------
>                 Key: HADOOP-13597
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13597
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: kms
>    Affects Versions: 2.6.0
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>         Attachments: HADOOP-13597.001.patch
> The Tomcat 6 we are using will reach EOL at the end of 2017. While there are 
> other good options, I would propose switching to {{Jetty 9}} for the 
> following reasons:
> * Easier migration. Both Tomcat and Jetty are based on {{Servlet 
> Containers}}, so we don't have change client code that much. It would require 
> more work to switch to {{JAX-RS}}.
> * Well established.
> * Good performance and scalability.
> Other alternatives:
> * Jersey + Grizzly
> * Tomcat 8
> Your opinions will be greatly appreciated.

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