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https://issues.apache.org/jira/browse/OOZIE-2317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644634#comment-14644634
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Robert Kanter commented on OOZIE-2317:
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We can, though Oozie isn't currently setup that way. Today, the official and
documented way of running Oozie is as a WAR application in Tomcat. If we want
to also allow Oozie to be built as a standalone application (i.e. like the RM,
NN, etc where you simply start them and they run an embedded Jetty) or some
other method, that's fine to. My motivation here was mostly to get us thinking
about what to do going forward.
> Figure out what to do about Tomcat 6 End of Life
> ------------------------------------------------
>
> Key: OOZIE-2317
> URL: https://issues.apache.org/jira/browse/OOZIE-2317
> Project: Oozie
> Issue Type: Bug
> Components: core
> Affects Versions: trunk
> Reporter: Robert Kanter
>
> Tomcat 6 will be end of life on Dec 31 2016.
> Even though that's a quite a while from now, it's best to stay ahead of
> things, so it would be good if we looked into a plan for this.
> Here are some options:
> # Upgrade to Tomcat 7
> # Upgrade to Tomcat 8
> # Switch to embedded Jetty 9
> I imagine upgrading to Tomcat 7/8 would be the easiest solution. I haven't
> looked into it much, but I imagine the build and deploy process could remain
> relatively the same; though we'd probably have to tweak some config files and
> things. As for which version, Tomcat has [this
> page|https://tomcat.apache.org/whichversion.html] to help.
> Switching to embedded Jetty 9 would require changing the build and deploy
> process, though that might be a good thing given how that can be
> complicated/confusing for users. And I know Tomcat makes things difficult
> for our packaging team in Cloudera. Many other Hadoop projects use embedded
> Jetty as well. We do know that Oozie runs properly in Jetty because our unit
> tests use Jetty.
> As part of this JIRA, the assignee should probably look into more specific
> pros/cons of the options and we should all reach a consensus before moving
> forward.
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