Hi Sascha, i very much like the idea. It can be a very lightweight enhancement to the start scripts, because what it basically does is that it defines a "search list" for "JAVA_HOME". Maybe it is sufficient to add that feature to the scripts and every distributor can customize the directory they prefer.
Fabian -- Fabian Lange | Performance Expert mobil: +49 (0) 160.3673393 codecentric AG | Merscheider Straße 1 | 42699 Solingen | Deutschland Sitz der Gesellschaft: Solingen | HRB 25917| Amtsgericht Wuppertal Vorstand: Michael Hochgürtel . Mirko Novakovic . Rainer Vehns Aufsichtsrat: Patric Fedlmeier (Vorsitzender) . Klaus Jäger . Jürgen Schütz On Mon, Oct 31, 2016 at 1:33 PM, Sascha Vogt <sascha.v...@gmail.com> wrote: > Hi all, > > we're workig on a Karaf based product and have the requirement to use > the JVM we ship with the product. We thought that might also be > interesting to others, so we wanted to share our proposal / current > implementation (and are also willing to provide the required patches). > > Main idea is to modify the start scripts (including the service > wrappers?) to prefer a JVM inside the KARAF_HOME directory (ie. > runtime/jvm64, or just plain jvm in KARAF_HOME). Whenever such a > directory is present it is prefered over a JAVA_HOME env var or whatever > else is in the path. > > Reason to also prefer it over JAVA_HOME is because if you run alongside > other Java applications on a server, JAVA_HOME might already be set for > other applications and the admin cannot change it. > > At the moment we have implemented the above via custom setenv scripts we > ship which then sets JAVA_HOME to KARAF_HOME/runtime/jvm64. When > "wrapper:install" is called, this JAVA_HOME is taken to the wrapper > properties. > > We spoke with the Instana[1] people as their agent is also Karaf based > and they were interested in it as well, so we know at least one other > Karaf user who would welcome that :) > > Anyway, any feeback is welcome. Also of course the name of the > directory(ies) can be discussed. > > Greetings > -Sascha- > > [1]https://www.instana.com/ >
