From the short description of jmcd I believe it would.
Steve
On Apr 8, 2005 1:23 PM, Mike Werner <mtw@xxxxxxxxxxxxxx> wrote:Hi Steve,
I'm glad to hear I was mistaken. I'd love to have a look at the
JNI/C++ code that you have. Will you send me a tar.gz ?
The Tomcat-based system you are describing reminds me of Sun's
Management Center product. Users/clients connect to a central
server that, in turn, connects to the several target machines.
If I remember correctly, the SunMC server is also Java-based.
I like that scheme for it's security features. For performance,
dependability, and flexibility I prefer a decentralized scheme,
a la PCP.
Would SGI's jmcd daemon suit your purpose?
- mtw
Stephen Przepiora wrote on Wed, Apr 06, 2005 at 08:59:27AM -0400
You got me wrong. I allways give short answers :) You can have total control
over it as the basic architecture is flawed for me. I _NEED_ to use it in a
java multithreaded environment (tomcat). Synchronization would not work as
it would slow down collection of the metrics to much. I was going to move
into a deamon with a simple protocol much like what Ken talked about.
The JNI interface really is simple. It is a basically a wrapper around a
bunch of C++ classes I wrote to use the pmapi. I think that is much more
interesting than the JNI interface.
Moving forward I was planning on dumping the JNI interface, and using the
C++ classes to write a daemon that will do the PCP work. Then write some
java classes that would connect to the daemon and get the metrics.
Steve
On Apr 6, 2005 3:07 AM, Mike Werner <mtw@xxxxxxxxxxxxxx> wrote:
>
> Hi Steve,
>
> Ok. The rest seems pretty straightforward from there.
> From your short answer I'm guessing that you're not
> interested in having any outside involvement. Feel
> free to drop me a line if you want to chat or tell
> any more. Happy coding.
>
> Cheers,
>
> - mtw
>
> Stephen Przepiora wrote on Mon, Apr 04, 2005 at 06:49:49AM -0500
>
> It will fetch metrics.
>
> On Apr 3, 2005 12:25 PM, Mike Werner <mtw@xxxxxxxxxxxxxx> wrote:
> >
> > Hi Steve,
> >
> > Regarding Java, I have just recently begun exploring the
> > idea of a JNI implementation. You seem much further along.
> >
> > Are you planning to release it?
> > Are you interested in collaborating?
> > How complete is your wrapping of the PMAPI?
> >
> > - mtw
> >
> > Stephen Przepiora wrote on Fri, Apr 01, 2005 at 08:27:32PM -0500
> >
> > Have you tried JNI? I have the beginnings of a JNI implementation, but
> > stopped because I needed to use it in a threaded enviroment. I am
> > currently
> > reworking how the application will run.
> >
> > Steve
> >
> > On Apr 1, 2005 11:55 AM, Mike Werner <mtw@xxxxxxxxxxxxxx> wrote:
> > >
> > > Hi Ken & Mark
> > >
> > > Thanks for the helpful info.
> > >
> > > Ken - as to why: I'm exploring some hairbrained ideas
> > > for using pcp data without C, e.g. Java. Do you know
> > > of any ports for alternate languages?
> > >
> > > - mtw
> > >
> > > kenmcd@xxxxxxxxxxxxxxxxx wrote on Fri, Apr 01, 2005 at 12:15:11PM
> +1000
> > >
> > > On Thu, 31 Mar 2005, Mike Werner wrote:
> > >
> > > > PCP Team,
> > > >
> > > > Is there a specification (ASN.1 or otherwise) of the
> > > > PMCD-to-client protocol, which I might obtain?
> > >
> > > I can assure you it is _not_ ASN.1 ... PCP is for analyzing
> performance
> > > problems, not creating them ... 8^)>
> > >
> > > The message protocol and format is not a secret
> > >
> > > pminfo -D pdu -v
> > >
> > > will dump out the messages flowing in both directions between the
> > > client and pmcd.
> > >
> > > We don't have any documentation beyond that ... but more to the point
> > > I'm kinda curious as to why you're interested in this, as the only
> > > sensible way to use the infrastructure is via libpcp and there is
> > > detailed documentation available on that API.
> > >
> > > Roughly, each libpcp call maps onto 1 sent message and 1 received
> > message.
> > >
> > >
> >
> >
>
>
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