RE: [gyrex-dev] Re: non-UI launcher for Equinox-based server

["Murphree, Michael" <Michael.Murphree@xxxxxxxxxxxxx>]

Hi Gunnar,

> I see two options. There is a native JVM launcher project at Apache. I
> was wondering if we could re-use this one. It works well for quite a
few
> Java based servers.

For Windows, procrun looks promising (
http://commons.apache.org/daemon/procrun.html ), although it doesn't
appear to support the "watchdog" features that are nice-to-haves for a
service adapter.

For Unix-like systems, it might actually be better to dispense with an
executable wrapper altogether.  The start, stop, calculate locations,
"give me a status", etc. functions could be done with small Java
programs and shell scripts.

> ...starting as super user ("root"), open ports below 1024, dropping
> root privileges and launch the JVM which takes over the socket handle.

This does sound like a nice feature.

Regards,

Michael


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From: gyrex-dev-bounces@xxxxxxxxxxx
[mailto:gyrex-dev-bounces@xxxxxxxxxxx] On Behalf Of Gunnar Wagenknecht
Sent: Sunday, September 06, 2009 3:30 PM
To: gyrex-dev@xxxxxxxxxxx
Subject: [gyrex-dev] Re: non-UI launcher for Equinox-based server

Hi Michael,

sorry for the late reply but I somehow lost my Gyrex-dev list
subscription. :(

> Does Gyrex, or should Gyrex have a native binary launcher for managing
> the JVM and running a JVM as a Windows service?

Ideally, yes. Although this doesn't mean we should write one ourselves.
;)

I see two options. There is a native JVM launcher project at Apache. I
was wonder if we could re-use this one. It works well for quite a few
Java based servers.

The second one would we to extend the Equinox launcher with what we
need. This would also allow to play with a few interesting features. For
example, the Equinox launcher could find running server instances and
one could use the command line to issue commands to it (eg. "eclipse
shutdown").

One of the most interesting features that I'm interested in is starting
as super user ("root"), open ports below 1024, dropping root privileges
and launch the JVM which takes over the socket handle.

Did you guys evaluate the Apache launcher already?

-Gunnar



-- 
Gunnar Wagenknecht
gunnar@xxxxxxxxxxxxxxx
http://wagenknecht.org/
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