DO NOT REPLY [Bug 10021] Include upgrade option in installer

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=10021

--- Comment #4 from Mark Thomas <ma...@apache.org> 2010-12-15 11:13:33 EST ---
Some random thoughts on this. If this is implemented, separating CATALINA_HOME
/ CATALINA_BASE is one way to go since that will simplify the upgrade process.
That then raises a number of additional questions:
- Are multiple HOMEs supported? If so how?
- Are multiple BASEs supported? If so how?
- Does uninstall remove a HOME, all HOMEs?
- If a HOME is uninstalled what happens to BASEs using it?

That could all get quite complicated.

The other approach is to just update the binaries (*.exe, *.jar) leaving the
config as is. The more I think about it, the more 'do-able' this sounds. May
need an upgrade specific read-me for any recommended config updates (changes to
defaults, new settings etc).

I'm leaving this open as I think it is worth doing (well, at least worth
looking at in more detail) but it feels like a fair amount of work to get
right.

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