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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Drools(5.1+) has already added functionality to monitor rule
activity in your application using JMX. You can turn mbean rule monitoring on either
in the rulebase’s configuration file(drools.mbeans=enabled||disabled) or
you can configure it through the command line(-Ddrools.mbeans=enabled||disabled
I believe). <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b>On Behalf Of </b>Dieter
D'haeyere<br>
<b>Sent:</b> Tuesday, August 03, 2010 9:49 AM<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Drools Expert: monitor rules & report
activity<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>What I mean with 'all possible
cases' is eg. that you will pass your facts to the rule engine and that the
rule engine will 'return' some result.<br>
I guess it is perfectly possible that in your test scenario's you covered a lot
of possible values for those facts but not all of them and that you could get
some unexpected results afterwards.<br>
This would mean that your test scenario's / test data were not good
enough. But I could imagine that stuff like this happens... At that
moment you should be able to see what rules were fired in a production
environment.<br>
<br>
Ik will have a look at the drools execution server.<br>
<br>
Dieter.<br>
<br>
<br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal>2010/8/3 Swindells, Thomas <<a
href="mailto:TSwindells@nds.com">TSwindells@nds.com</a>><o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB style='font-size:11.0pt;color:#1F497D'>Guvnor is a user interface
used to define sets of rules, it’s not designed to be an actual execution
server – the demo test scenarios only work on static predefined data, in
a real execution environment the input data has to be acquired/loaded from
somewhere dynamically, hence you always need some form of development –
though look at the drools execution server to minimize this.</span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB style='font-size:11.0pt;color:#1F497D'> </span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB style='font-size:11.0pt;color:#1F497D'>What do you actually mean by
covering all possible cases anyway? Possible cases of what? What are you trying
to detect?</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB style='font-size:11.0pt;color:#1F497D'> </span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB style='font-size:11.0pt;color:#1F497D'>Thomas</span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB style='font-size:11.0pt;color:#1F497D'> </span><span
lang=EN-GB><o:p></o:p></span></p>
<div style='border:none;border-left:solid windowtext 1.5pt;padding:0in 0in 0in 4.0pt;
border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color blue'>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span
style='font-size:10.0pt'>From:</span></b><span style='font-size:10.0pt'> <a
href="mailto:rules-users-bounces@lists.jboss.org" target="_blank">rules-users-bounces@lists.jboss.org</a>
[mailto:<a href="mailto:rules-users-bounces@lists.jboss.org" target="_blank">rules-users-bounces@lists.jboss.org</a>]
<b>On Behalf Of </b>Dieter D'haeyere<br>
<b>Sent:</b> 03 August 2010 14:35<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Drools Expert: monitor rules & report
activity</span><span lang=EN-GB><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB> <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span
lang=EN-GB>Ok, this looks like a way to handle it.<br>
But does this mean that there is no 'out of the box' monitoring possibility ?<br>
<br>
When deploying a rule base (with Guvnor), I would kind of expect that Guvnor is
accessible and that it can return some metrics (eg. after switching on a
monitoring option because I presume continuous logging would slow down the
system too much).<br>
<br>
As I understand it now, some custom development is needed will be needed to
achieve 'real-time' monitoring.<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB>2010/8/3 David Sinclair <<a
href="mailto:dsinclair@chariotsolutions.com" target="_blank">dsinclair@chariotsolutions.com</a>><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span
lang=EN-GB>Have a look at the AgendaEventListener. You can use these callbacks
to see which rules fire and information about them<o:p></o:p></span></p>
<table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="100%"
style='width:100.0%'>
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<td width="1%" valign=top style='width:1.0%;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;
background-attachment:scroll;background-position-x:0%;background-position-y:
0%'>
<p class=MsoNormal align=right style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:right'><code><span style='font-size:10.0pt'> void</span></code><o:p></o:p></p>
</td>
<td style='background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;background-attachment:
scroll;background-position-x:0%;background-position-y:0%'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><code><b><span
style='font-size:10.0pt'><a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#activationCancelled%28org.drools.event.rule.ActivationCancelledEvent%29"
target="_blank">activationCancelled</a></span></b></code><code><span
style='font-size:10.0pt'>(<a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/ActivationCancelledEvent.html"
target="_blank" title="interface in org.drools.event.rule">ActivationCancelledEvent</a> event)</span></code>
<br>
<o:p></o:p></p>
</td>
</tr>
<tr>
<td width="1%" valign=top style='width:1.0%;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;
background-attachment:scroll;background-position-x:0%;background-position-y:
0%'>
<p class=MsoNormal align=right style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:right'><code><span style='font-size:10.0pt'> void</span></code><o:p></o:p></p>
</td>
<td style='background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;background-attachment:
scroll;background-position-x:0%;background-position-y:0%'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><code><b><span
style='font-size:10.0pt'><a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#activationCreated%28org.drools.event.rule.ActivationCreatedEvent%29"
target="_blank">activationCreated</a></span></b></code><code><span
style='font-size:10.0pt'>(<a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/ActivationCreatedEvent.html"
target="_blank" title="interface in org.drools.event.rule">ActivationCreatedEvent</a> event)</span></code>
<br>
<o:p></o:p></p>
</td>
</tr>
<tr>
<td width="1%" valign=top style='width:1.0%;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;
background-attachment:scroll;background-position-x:0%;background-position-y:
0%'>
<p class=MsoNormal align=right style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:right'><code><span style='font-size:10.0pt'> void</span></code><o:p></o:p></p>
</td>
<td style='background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;background-attachment:
scroll;background-position-x:0%;background-position-y:0%'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><code><b><span
style='font-size:10.0pt'><a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#afterActivationFired%28org.drools.event.rule.AfterActivationFiredEvent%29"
target="_blank">afterActivationFired</a></span></b></code><code><span
style='font-size:10.0pt'>(<a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AfterActivationFiredEvent.html"
target="_blank" title="interface in org.drools.event.rule">AfterActivationFiredEvent</a> event)</span></code>
<br>
<o:p></o:p></p>
</td>
</tr>
<tr>
<td width="1%" valign=top style='width:1.0%;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;
background-attachment:scroll;background-position-x:0%;background-position-y:
0%'>
<p class=MsoNormal align=right style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:right'><code><span style='font-size:10.0pt'> void</span></code><o:p></o:p></p>
</td>
<td style='background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;background-attachment:
scroll;background-position-x:0%;background-position-y:0%'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><code><b><span
style='font-size:10.0pt'><a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#agendaGroupPopped%28org.drools.event.rule.AgendaGroupPoppedEvent%29"
target="_blank">agendaGroupPopped</a></span></b></code><code><span
style='font-size:10.0pt'>(<a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaGroupPoppedEvent.html"
target="_blank" title="interface in org.drools.event.rule">AgendaGroupPoppedEvent</a> event)</span></code>
<br>
<o:p></o:p></p>
</td>
</tr>
<tr>
<td width="1%" valign=top style='width:1.0%;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;
background-attachment:scroll;background-position-x:0%;background-position-y:
0%'>
<p class=MsoNormal align=right style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:right'><code><span style='font-size:10.0pt'> void</span></code><o:p></o:p></p>
</td>
<td style='background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;background-attachment:
scroll;background-position-x:0%;background-position-y:0%'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><code><b><span
style='font-size:10.0pt'><a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#agendaGroupPushed%28org.drools.event.rule.AgendaGroupPushedEvent%29"
target="_blank">agendaGroupPushed</a></span></b></code><code><span
style='font-size:10.0pt'>(<a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaGroupPushedEvent.html"
target="_blank" title="interface in org.drools.event.rule">AgendaGroupPushedEvent</a> event)</span></code>
<br>
<o:p></o:p></p>
</td>
</tr>
<tr>
<td width="1%" valign=top style='width:1.0%;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;
background-attachment:scroll;background-position-x:0%;background-position-y:
0%'>
<p class=MsoNormal align=right style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:right'><code><span style='font-size:10.0pt'> void</span></code><o:p></o:p></p>
</td>
<td style='background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;background-attachment:
scroll;background-position-x:0%;background-position-y:0%'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><code><b><span
style='font-size:10.0pt'><a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#beforeActivationFired%28org.drools.event.rule.BeforeActivationFiredEvent%29"
target="_blank">beforeActivationFired</a></span></b></code><code><span
style='font-size:10.0pt'>(<a
href="http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/BeforeActivationFiredEvent.html"
target="_blank" title="interface in org.drools.event.rule">BeforeActivationFiredEvent</a> event)</span></code>
<o:p></o:p></p>
</td>
</tr>
</table>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span
lang=EN-GB> <o:p></o:p></span></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-GB>2010/8/3 Dieter D'haeyere <<a
href="mailto:dieter.dhaeyere@gmail.com" target="_blank">dieter.dhaeyere@gmail.com</a>><o:p></o:p></span></p>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span
lang=EN-GB>@ll,<br>
I have a question regarding the possibilities to monitor and report on the
rules activity.<br>
I have seen that with Drools Guvnor, it is perfectly possible to monitor
scenario's, see what rules fired, etc.<br>
<br>
Now, going further, I have two questions:<br>
- Is it possible to monitor rule activity (which rules got fired etc) in a
production situation. Eg. Is it possible to start recording activity at
some time until a proble occured and to review the logs afterwards. This
would be of use when scenario's are not covering all possible cases.<br>
- Is it possible to produce reports on rules, usage of rules (eg. what rules
are fired and what rules were fired most), performance, ... <br>
And if not, what could be a good starting point to create them ?<br>
<br>
My experience with Drools is rather limited. Let's say that I am
interested in expert system and technologies surrounding it. At this
moment I am getting a 'theoretical' grip on Drools and its possibilities (of
course, I couldn't help also creating some kind of poc :) ).<br>
<br>
Sincerely,<br>
<span style='color:#888888'>Dieter D'haeyere.</span><o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span
lang=EN-GB>_______________________________________________<br>
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<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-GB>
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