[rules-users] Drools error log msg?
Markus Schneider
markus.schneider73 at gmail.com
Tue Feb 25 11:42:33 EST 2014
I'll rewrite the rule and give you feedback tomorrow.
"would you be interested in doing some research and see if/how they
impact performance and rule authoring?" - No problem. It would be a
pleasure for me to help.
-markus
2014-02-25 17:22 GMT+01:00 Davide Sottara <dsotty at gmail.com>:
> 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>
> :
>
>> 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>:
>>
>> 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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>>
>>
>
>
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