Doug Luce wrote:
>
> For this sort of thing, I assign a second IP address to the machine, then
> configure everything to bind to that IP address (making sure the original
> implementation binds to the first IP address only).
Or you could use a different set of ports ... less to configure then.
>
<snippage>
> The trick is to start using versioned target directories for your
> stuff. Instead of just cramming it all in /usr/local/bin, set up
> /usr/local/apache1.3.12/bin etc.
Agreed - when ever I set up boxes I always use a prefix of
/usr/local/package+version so the install goes there.
I then use symlinks so that the current version is symlinked from
/usr/local/package.
I then change any start up scripts to use /usr/local/package.
So when an upgrade is required I just install, and test (on a different
port) and when I am happy I change the symlink and do a stop start -
the upgrade is hence nearly transparent.
One issue with this is things like DBD modules that are closly tied to
the version of perl and the DB client libs - if you upgrade either then
you may have a problem. In this case I usually rebuild the DBD libs
between the stop and the start (it takes less than a minute.). As yet
I've not moved to perl 5.6.
Greg Cope
>
> doug
>
> On Wed, 19 Jul 2000, Keith Kwiatek wrote:
>
> > Hello,
> >
> > I have a production system (solaris 7) with apache 1.3.6 system with
> > mod_perl.1.19 and mod_ssl.2.3.1
> >
> > I would like to somehow install the latest apache + mod_perl + mod_ssl +
> > DBI/DBD versions on the production system, BUT without interrupting the
> > current production system. And then, after I have moved over and tested the
> > production web application in the new server, cleanly switch over.....
> >
> > In other words, is it possible to install new versions of apache + mod_perl
> > + mod_ssl + DBI/DBD (and all the dependant modules) into a separate
> > directory on the production system -- WITHOUT affecting the older apache
> > production server?
> >
> > How in the world do I cleanly upgrade apache + mod_perl + mod_ssl + DBI/DBD?
> >
> > Thanks,
> > Keith
> >
> >
