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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13597) Switch KMS from Tomcat to Jetty
Date Wed, 04 Jan 2017 07:39:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15797457#comment-15797457
] 

Xiao Chen commented on HADOOP-13597:
------------------------------------

Thanks [~jojochuang] for the review. Good catch, searching for tomcat I can also see {{SecureMode.md}}
has a mention of tomcat, maybe better changed in the httpfs jira though (since that goes in
later). Also 1 reference of tomcat in {{hadoop-common-project/hadoop-kms/dev-support/findbugsExcludeFile.xml}},
can be updated here.

+1 pending those 2 nits though.

Since it's a fairly big and impactful patch, will let it float a few days in case other watchers
have comments. Plan to commit by Thursday if no objections.

> 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, HADOOP-13597.002.patch, HADOOP-13597.003.patch,
HADOOP-13597.004.patch, HADOOP-13597.005.patch, HADOOP-13597.006.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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