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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13597) Switch KMS from Tomcat to Jetty
Date Tue, 29 Nov 2016 05:16:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15704230#comment-15704230

Allen Wittenauer commented on HADOOP-13597:

Hooray! This is really great.  

bq. Rewrite kms.sh to use Hadoop shell script framework

I didn't have any specific feedback about this bit (quick pass; didn't see anything obvious).

One of the big goals I had for the rewrite was to get sbin out of the direct path for administrators.
 With that in mind, I wonder if this is the time to fix kms to be less of an outlier.

One choice would be integrate it into bin/hadoop. (probably via shell profile a la the bits
in hadoop-tools).  Another, less drastic option would be just to move sbin/kms.sh to bin/kms.
 In either case, sbin/kms.sh just becomes a wrapper.

Anyway, food for thought.

> 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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