[rules-users] Streaming mode

Hi all, i have a big problem with drools fusion. I insert some new event (pojo object) into Working Memory, but another thread retract it after a few ms. Someone could tell me why? Thanks a lot, [java] gas2-event: 1330701201208 [java] INFO [2012-03-02 16:13:21,261] [ExpertSystem] (ExpertVS.java:141) - **** eventRetracted: 1330701201232/30/32/0/100 [java] INFO [2012-03-02 16:13:31,224] [Thread-19] (ExpertVS.java:135) - objectInserted org.dfms.model.observation.GasObservation@1a30ef85 [java] INFO [2012-03-02 16:13:31,225] [Thread-19] (ExpertVS.java:135) - objectInserted org.dfms.model.observation.GasObservation@2bd1232 [java] INFO [2012-03-02 16:13:31,226] [Thread-19] (ExpertVS.java:135) - objectInserted org.dfms.model.observation.GasObservation@4045acb5 [java] INFO [2012-03-02 16:13:31,227] [Thread-19] (ExpertVS.java:135) - objectInserted org.dfms.model.observation.TemperatureObservation@1e4dc00a [java] INFO [2012-03-02 16:13:31,227] [Thread-19] (ExpertVS.java:135) - objectInserted org.dfms.model.observation.HumidityObservation@27ae011 * [java] INFO [2012-03-02 16:13:31,227] [pool-1-thread-1] (ExpertVS.java:124) - **** eventInserted: 1330701211226/30/32/0/100* [java] INFO [2012-03-02 16:13:31,240] [Thread-19] (ExpertVS.java:135) - objectInserted org.dfms.model.observation.RadiationObservation@510c7d5c [java] INFO [2012-03-02 16:13:31,251] [pool-1-thread-1] (ExpertVS.java:143) - objectRetracted ==>[ObjectRetractedEventImpl: getFactHandle()=1:105:45945394:45945394:105:lowLevelSensorStream, getOldObject()=org.dfms.model.observation.GasObservation@2bd1232, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@7224e11c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::lowLevelSensorStream, factHandle=1:105:45945394:45945394:105:lowLevelSensorStream, leftTuple=1:105:45945394:45945394:105:lowLevelSensorStream [java] [fact 0:0:124232201:1306428912:0:DEFAULT:org.drools.reteoo.InitialFactImpl@4dde85f0 ] [java] , originOffset=-1, propagationNumber=220, rule=[Rule name=gas2-event, agendaGroup=MAIN, salience=10, no-loop=true], type=1]] [java] gas2-event: 1330701211203 * [java] INFO [2012-03-02 16:13:31,261] [ExpertSystem] (ExpertVS.java:141) - **** eventRetracted: 1330701211226/30/32/0/100* [java] INFO [2012-03-02 16:13:31,262] [ExpertSystem] (ExpertVS.java:143) - objectRetracted ==>[ObjectRetractedEventImpl: getFactHandle()=1:101:1512664237:1512664237:101:lowLevelSensorStream, getOldObject()=org.dfms.model.observation.TemperatureObservation@5a296cad, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@7224e11c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::lowLevelSensorStream, factHandle=1:101:1512664237:1512664237:101:lowLevelSensorStream, leftTuple=null, originOffset=-1, propagationNumber=224, rule=null, type=1]] [java] INFO [2012-03-02 16:13:31,262] [ExpertSystem] (ExpertVS.java:143) - objectRetracted ==>[ObjectRetractedEventImpl: getFactHandle()=1:102:1436418073:1436418073:102:lowLevelSensorStream, getOldObject()=org.dfms.model.observation.HumidityObservation@559e0019, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@7224e11c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::lowLevelSensorStream, factHandle=1:102:1436418073:1436418073:102:lowLevelSensorStream, leftTuple=null, originOffset=-1, propagationNumber=226, rule=null, type=1]] [java] INFO [2012-03-02 16:13:31,263] [ExpertSystem] (ExpertVS.java:143) - objectRetracted ==>[ObjectRetractedEventImpl: getFactHandle()=1:103:2014876984:2014876984:103:lowLevelSensorStream, getOldObject()=org.dfms.model.observation.RadiationObservation@78189538, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@7224e11c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::lowLevelSensorStream, factHandle=1:103:2014876984:2014876984:103:lowLevelSensorStream, leftTuple=null, originOffset=-1, propagationNumber=228, rule=null, type=1]] [java] INFO [2012-03-02 16:13:41,228] [ExpertSystem] (ExpertVS.java:143) - objectRetracted ==>[ObjectRetractedEventImpl: getFactHandle()=1:108:508411914:508411914:108:lowLevelSensorStream, getOldObject()=org.dfms.model.observation.TemperatureObservation@1e4dc00a, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@7224e11c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::lowLevelSensorStream, factHandle=1:108:508411914:508411914:108:lowLevelSensorStream, leftTuple=null, originOffset=-1, propagationNumber=230, rule=null, type=1]] [java] INFO [2012-03-02 16:13:41,230] [ExpertSystem] (ExpertVS.java:143) - objectRetracted ==>[ObjectRetractedEventImpl: getFactHandle()=1:109:41607185:41607185:109:lowLevelSensorStream, getOldObject()=org.dfms.model.observation.HumidityObservation@27ae011, getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@7224e11c, getPropagationContext()=PropagationContextImpl [activeActivations=0, dormantActivations=0, entryPoint=EntryPoint::lowLevelSensorStream, factHandle=1:109:41607185:41607185:109:lowLevelSensorStream, leftTuple=null, originOffset=-1, propagationNumber=232, rule=null, type=1]]