[rules-users] Drools error log msg?
Davide Sottara
dsotty at gmail.com
Tue Feb 25 11:22:56 EST 2014
The "after 20 facts or so" makes me think that some constraint behaves
differently when jitted
(constraints are jitted lazily, to go from interpreted to compiled mode,
only when they are used
often enough).
In fact, there was a bug that was fixed a few days ago regarding a
different behavior of "contains".
The interpreted version would work as String.contains, while the
compiled version would work
as Collection.contains - or vice versa, I don't remember right now.
Unfortunately, the fix can't be backported to 5.5.0.Final.
Can you try to rewrite constraints like :
_name:catalog['name'] not contains 'Timer'
into
_name:catalog['name'], ! ((String) catalog['name']).contains( 'Timer' )
and see if the situation improves?
On a totally unrelated topic...
I have also noticed that you have a very peculiar data model..
we developed traits in 5.6 and 6.x to deal with relational models like
yours..
would you be interested in doing some research and see if/how they
impact performance and rule authoring?
Davide
On 02/25/2014 02:31 PM, Markus Schneider wrote:
> The reason why I've activated the logging was that some rules are not
> fired after inserting a special
> amount of facts - in my case exactly 20.
>
> Some more details here:
> I work on an Event Correlation & Analysis OSS solution that's based on
> Grails & Drools 5.5.0-Final.
> I'm using a stateful knowledge session and only call dispose() when
> the app is stopped - but all facts
> are retracted. The functional testing works fine but as I've mentioned
> it before when I run the integration
> testing it fails, because rules are not fired ('ClearAlertRule' is not
> fired) when I insert more than 20 facts.
> I saw the errors in the drools log but I didn't know if they were
> relevant for my problem here.
> I've attached two picts which document the right and the wrong
> behavior of the rule processing
> - also I've listed the rules of my rulebase.
>
> Has anybody an idea?
>
> Cheers,
>
> -markus
>
>
> //------------------------------
> rule 'UpdateAlertRule'
> //------------------------------
> dialect 'mvel'
> salience 900
> no-loop
> when
> _event : Event(eventClass == "Event",
> _name:catalog['name'],
> _category:catalog['category'],
> _severity:catalog['severity'],
> _state:catalog['state'],
> _source:catalog['source'],
> _subSource:catalog['subSource'],
> _origin:catalog['origin'],
> _subOrigin:catalog['subOrigin'],
> _owner:catalog['owner'],
> _description:catalog['description'],
> _selector:("from Alert where " +
> "name='" + catalog['name'] + "' " +
> "and severity='" + catalog['severity'] + "' " +
> "and not state='Closed'"
> )
> )
> eval(isDuplicate(_event,"UpdateAlertRule",_selector) == true)
> then
> System.out.println("UpdateAlertRule is processed.")
> EntityBuilder entityBuilder = new EntityBuilder();
> entityBuilder.addProperty("modifiedBy","UpdateAlertRule");
> entityBuilder.addProperty("counter",1);
> AlertHandler alertHandler = new
> AlertHandler(entityBuilder.getProperties(),_selector);
> alertHandler.update();
> RuleLogHandler ruleLogHandler = new RuleLogHandler();
> ruleLogHandler.create("UpdateAlertRule",_name);
> end
>
> //------------------------------
> rule 'ClearAlertRule'
> //------------------------------
> dialect 'mvel'
> salience 800
> no-loop
> when
> _event : Event(eventClass == "Event",
> _name:catalog['name'] contains 'Info',
> _category:catalog['category'],
> _severity:catalog['severity'] == 'Harmless',
> _state:catalog['state'],
> _source:catalog['source'],
> _subSource:catalog['subSource'],
> _origin:catalog['origin'],
> _subOrigin:catalog['subOrigin'],
> _owner:catalog['owner'],
> _description:catalog['description'],
> _selector:("from Alert where " +
> "name like '%Error'" +
> "and not severity='Harmless'" +
> "and not state='Closed'"
> )
> )
> then
> System.out.println("ClearAlertRule is processed.")
> EntityBuilder entityBuilder = new EntityBuilder();
> entityBuilder.addProperty("modifiedBy","ClearAlertRule")
> entityBuilder.addProperty("state","Closed");
> AlertHandler alertHandler = new
> AlertHandler(entityBuilder.getProperties(),_selector);
> alertHandler.update();
> RuleLogHandler ruleLogHandler = new RuleLogHandler();
> ruleLogHandler.create("ClearAlertRule",_name);
> end
>
> //------------------------------
> rule 'CreateAlertRule'
> //------------------------------
> dialect 'mvel'
> salience 700
> no-loop
> when
> _event : Event(eventClass == "Event",
> _name:catalog['name'],
> _category:catalog['category'],
> _severity:catalog['severity'],
> _priority:catalog['priority'],
> _state:catalog['state'],
> _source:catalog['source'],
> _subSource:catalog['subSource'],
> _origin:catalog['origin'],
> _subOrigin:catalog['subOrigin'],
> _owner:catalog['owner'],
> _description:catalog['description'],
> _selector:("from Alert where " +
> "name='" + catalog['name'] + "' " +
> "and severity='" + catalog['severity'] + "' " +
> "and not state='Closed'"
> )
> )
> eval(isDuplicate(_event,"CreateAlertRule",_selector) == false)
> then
> System.out.println("CreateAlertRule is processed.");
> EntityBuilder entityBuilder = new EntityBuilder();
> entityBuilder.addProperty("modifiedBy","CreateAlertRule");
> entityBuilder.addProperty("name",_name);
> entityBuilder.addProperty("category",_category);
> entityBuilder.addProperty("severity",_severity);
> entityBuilder.addProperty("priority",_priority);
> entityBuilder.addProperty("state",_state);
> entityBuilder.addProperty("source",_source);
> entityBuilder.addProperty("subSource",_subSource);
> entityBuilder.addProperty("origin",_origin);
> entityBuilder.addProperty("subOrigin",_subOrigin);
> entityBuilder.addProperty("owner",_owner);
> entityBuilder.addProperty("description",_description);
> AlertHandler alertHandler = new
> AlertHandler(entityBuilder.getProperties(),_selector);
> alertHandler.create();
> RuleLogHandler ruleLogHandler = new RuleLogHandler();
> ruleLogHandler.create("CreateAlertRule",_name);
> end
>
> //------------------------------
> rule 'EventRetractionRule'
> //------------------------------
> dialect 'mvel'
> salience 1
> no-loop
> when
> _event : Event(eventClass == "Event",
>
> _name:catalog['name'] not contains 'Timer'
>
>
> )
> then
> System.out.println("EventRetractionRule is processed.");
> retract(_event);
> RuleLogHandler ruleLogHandler = new RuleLogHandler();
> ruleLogHandler.create("EventRetractionRule",_name);
> end
>
>
>
> 2014-02-25 14:00 GMT+01:00 Markus Schneider
> <markus.schneider73 at gmail.com <mailto:markus.schneider73 at gmail.com>>:
>
> Hi Davide,
>
> thank you for the fast response. I've defined an
> DebugAgendaEventListener as it's described here:
> Drools Docu 5.5.0-Final/Section 7.2/HelloWorld example.
> http://docs.jboss.org/drools/release/5.5.0.Final/drools-expert-docs/html/index.html
>
> Where can I find any docu about the config of the
> DebugAgendaEventListener?
>
> Cheers,
>
> -markus
>
>
>
>
> 2014-02-25 12:59 GMT+01:00 Davide Sottara <dsotty at gmail.com
> <mailto:dsotty at gmail.com>>:
>
> You likely have configured a DebugAgendaEventListener, which
> logs agenda events (rules activated, fired, etc..)
> on the standard error rather than the standard output. If you
> want a different behavior, remove the listener
> and implement one of your own.
> These are not errors anyway.
> Davide
>
>
> On 02/25/2014 09:40 AM, Markus Schneider wrote:
>> Hi list,
>>
>> I see the following error msg in my drools log but I don't
>> know how to interpret this.
>> Do I have a serious problem here?
>>
>> Has anybody a clue?
>>
>> Thanks in advance.
>>
>> Cheers,
>>
>> -markus
>>
>> | Error ==>[AfterActivationFiredEvent:
>> getActivation()=[Activation rule=UpdateAlertRule, act#=37,
>> salience=900, tuple=[fact
>> 0:19:184363445:184363445:19:DEFAULT:rapideca.plugins.rbm.entity.Event
>> : 19]
>> ],
>> getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl at 6dd4ab87]
>> | Error ==>[BeforeActivationFiredEvent:
>> getActivation()=[Activation rule=EventRetractionRule,
>> act#=36, salience=1, tuple=[fact
>> 0:19:184363445:184363445:19:DEFAULT:rapideca.plugins.rbm.entity.Event
>> : 19]
>> ],
>> getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl at 6dd4ab87]
>> EventRetractionRule is processed.
>> | Error ==>[ObjectRetractedEventImpl: getFactHandle()=[fact
>> 0:19:184363445:184363445:19:DEFAULT:rapideca.plugins.rbm.entity.Event
>> : 19], getOldObject()=rapideca.plugins.rbm.entity.Event : 19,
>> getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl at 6dd4ab87,
>> getPropagationContext()=PropagationContextImpl
>> [activeActivations=0, dormantActivations=2,
>> entryPoint=EntryPoint::DEFAULT, factHandle=[fact
>> 0:19:184363445:184363445:19:DEFAULT:rapideca.plugins.rbm.entity.Event
>> : 19], leftTuple=[fact
>> 0:19:184363445:184363445:19:DEFAULT:rapideca.plugins.rbm.entity.Event
>> : 19]
>> , originOffset=-1, propagationNumber=40, rule=[Rule
>> name=EventRetractionRule, agendaGroup=MAIN, salience=1,
>> no-loop=true], type=1]]
>> 2014-02-25 08:59:03,524
>> [eventQueueReceiverJmsListenerContainer-1] INFO
>> log.RuleLogHandler - RuleLog with id: 38 was successfully saved.
>> | Error ==>[AfterActivationFiredEvent:
>> getActivation()=[Activation rule=EventRetractionRule,
>> act#=36, salience=1, tuple=[fact
>> 0:-1:184363445:184363445:19:null:null]
>> ],
>> getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl at 6dd4ab87]
>>
>>
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>
>
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