Ciao, I'm using 6.1.0.beta4 and I identified in my application a rule pattern inducing memory leaks. I try to attach rule, screenshots, and javacode to replicate the issue. IF the rule "After No data received within the last 1 hour Error, now resumed" is included, memory leaks happens, and pretty quickly. IF such rule is commented out, application do manage to keep alive. [>] Question kindly is: is this normal on 6.1.0.beta4, or shall I go ahead and raise a JIRA for this, please? This time I ask in the mailinglist first, just because last time I experienced a similar issue and raised JIRA, but in fact at the end was just another way to replicate a known issue. Thank you in advance Ciao, MM *package* com.acme.drools6test.anotherleak; *import* com.acme.objectmodel.* // we take time is insertion time of SensorReading *declare* SensorReading @role(event) *end* *declare* Alert @role(event) *end* *declare* AlertErrorToken @role(event) @timestamp(ts) ts : *long* *end* *declare* AMap @role(fact) map : java.util.HashMap *end* *query* "AMap" $AMap : AMap() *end* *query* "Alerts" $alert : Alert() *end* *query* "All" $o : Object() *end* *rule* "init AMap" *no-loop* *when* *not* ( AMap() ) *then* AMap t = *new* AMap(); t.setMap( *new* java.util.HashMap() ); *insert*( t ); *end* *rule* "to display a kind of single table that list most recent value" *no-loop* *when* $sr : SensorReading($id : header.id , $value : value) AMap($map : map) *then* $map.put($id, $value); *end* *rule* "No data received within the last 1 minutes Warning" *no-loop* *when* $sr : SensorReading() *not*( SensorReading( *this* != $sr, *this* after[0,1m] $sr ) ) *not*( Alert( sr == $sr, type == AlertType.WARNING ) ) *then* Alert alert = *new* Alert(kcontext.getKieRuntime().getSessionClock().getCurrentTime(), "No data received within the last 1 minutes", AlertType.WARNING, $sr); *insert*(alert); System.out.println("1 minutes Warning insert " + alert); // send WARNING notification *end* *rule* "No data received within the last 1 hour Error" *no-loop* *when* $sr : SensorReading() *not*( SensorReading( *this* != $sr, *this* after[0,1h] $sr ) ) *not*( Alert( sr == $sr, type == AlertType.ERROR ) ) *then* *long* errTs = kcontext.getKieRuntime().getSessionClock().getCurrentTime(); Alert alert = *new* Alert(errTs, "No data received within the last 1 hour", AlertType.ERROR, $sr); *insert*(alert); AlertErrorToken errToken = *new* AlertErrorToken(); errToken.setTs(errTs); *insert*(errToken); System.out.println("last 1 hour Error insert " + alert); // send ERROR notification *end* *rule* "After No data received within the last 1 hour Error, now resumed" *no-loop* *when* $errToken : AlertErrorToken() $errAlert : Alert(*this* coincides $errToken) SensorReading( *this* after $errToken ) *then* *retract*($errToken); System.out.println("now resumed retract " + $errToken); // send INFO resume notification *end* *rule* "Housekeep rule" *salience* -1000 *no-loop* *dialect* "mvel" *when* $last : SensorReading( ) over window:length( 1 ) $earlier : SensorReading( *this* before $last, *this* != $last ) *then* *retract*($earlier); System.out.println("Housekeep : "+$earlier); *end*