[Hawkular-dev] agent running as a VM javaagent - non-EAP based solution

[Thomas Cunningham]

I've been testing this out for the past day, and this is fantastic.   I
have it attached to Karaf pushing metrics to Hawkular and it looks like
it's working very well.   I'm trying it on SpringBoot next, but if it works
on Karaf, I'm not sure why it wouldn't work on SpringBoot.

Things I'd like to contribute back possibly if they sound interesting :

- delay (the delay X seconds is useful, but I'd like to have a way of
polling to see if the MBeans are registered yet, and then starting the
agent)
- size of javaagent : it looks like the JAR is about 24MB, I might look
into seeing if there's a way of slimming that down.    For our purposes,
we're only really interested in JMX support, so I'm going to see if I can
build a profile that filters out the DMR stuff and their dependencies for a
smaller fat JAR
- optional log integration with Karaf?




On Thu, Mar 9, 2017 at 3:04 PM, John Mazzitelli <mazz at redhat.com> wrote:

> > > I still need to see how well this supports the disabling/enabling of
> > > metrics on the fly from the websocket commands (e.g. I will need to
> add the ability
> > > to change the YAML config to persist the settings, that is not done
> yet -
> > > the EAP-based agent got this support for free - its config changes go
> into
> > > standalone.xml).
> >
> > Just checked - the cmdgw command to update collection intervals won't
> work
> > because it is assuming the agent is always DMR-accessible which it no
> longer
> > is. This won't be hard to refactor that command to get it to work, but
> for
> > now, this will not work when running as javaagent - still works as normal
> > with the subsystem agent.
>
> This is fixed now. Updating collection intervals and enabling/disabling
> metrics should now work even when deployed at a javaagent.
>
> At this point in time, I'm hard-pressed to think of a feature the WildFly
> Agent has that the javaagent does not (short of the obvious "there is no
> CLI" and "there is no installer" - but there is really nothing to install
> so that's moot). If anyone plays with this (especially with CFME on the
> front end) let me know what you find.
>
> I'm sure I'm forgetting something, but right now, it looks like it is
> working really well. I just have to build in itests for it (right now, all
> the WildFly Agent itests still exist and pass, so I know I didn't break
> that).
> _______________________________________________
> hawkular-dev mailing list
> hawkular-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/hawkular-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/hawkular-dev/attachments/20170309/f1422502/attachment.html