Hi,
Are there any cautions/warnings/problems or just differences that I should expect
between the two? For instance, will my servlets need to change in any way to run in
5.0.x? Will administration of the servlets change in any way? If there is anything I
should do to prepare for the upgrade, particularly steps that minimize problems, I'd
like to do so.
You don't have to change your servlets/listeners/filters/JSPs etc. There are
differences in the server configuration, e.g. the automatic creation of context .xml
files in the conf/[engine name]/[host name] directory under certain circumstances. If
you have an unusual or very intricate custom tomcat configuration, i.e. a lot of
things setup in server.xml, you might have a slightly more difficult migration. But
your webapp itself won't need to be changed.
Am I right in believing that I should normally not remove old versions
before installing newer versions of Tomcat; that new versions simply go on in
parallel, i.e. they are put in different directories than the old versions? That's
what I did when going from 4.1.24 to 4.1.29 in Windows XP.
Doesn't matter. You can remove the old version if you want, no harm there. You will
probably want to keep it until the new one is all set up and tested, however.
However, we also have Tomcat on our Linux Mandrake 9.1 server and the administrator
wants to use urpm to simply overlay 4.1.24 on Linux with 5.0.x. Is that safe or
should we do it some other way?
I'm not an expert on RPMs, but I dislike overlaying installations to the same
directory. Use a different directory if possible.
Yoav Shapira
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