[ https://issues.jboss.org/browse/DROOLS-610?page=com.atlassian.jira.plugin... ] Nathalie ravenel updated DROOLS-610: ------------------------------------ Attachment: image001.jpg Dear Mario, It is possible we don’t use correctly drools. We have a program what receives some events and updates the “working memory”. Inside the function modifier-element (to update the facthandle), we update the facthandle and after we fireAllRules. Please find below the corresponding java code. We don’t have to fireAllRules ? Nathalie public void modifier_element(String nom_slot, String valeur) { String tmp; // on passe le nom en minuscule nom_slot = nom_slot.toLowerCase(); // if(debug) //executer_commande("echo \""+nom_slot+": "+valeur+"\" >> ../debug/console.txt"); //System.out.println("Modifier element (str/str) : "+nom_slot+" valeur "+valeur); try { // on parcourt la liste de noms for (String nom : listeDesNoms) { // si le nom du slot contient le nom (ex : data_srv_1_choc contient data_srv_1) //if(debug & nom_slot.contains("courant_commande")) System.out.println("Nom slot "+nom_slot+" valeurs:" +valeur+"\n"); if (nom_slot.contains(nom)) { // be carefull element serveur_choc ... not dealed by this command // find the element and the string attribute tmpO = listeElements.get(nom); tmp=tmpO.getString(nom_slot); /*if (nom_slot.contains("_choc")) { System.out.println("Element (str/str) "+nom_slot+" (initial/update) :"+tmp+" /"+valeur+"\n"); }*/ // si la valeur du slot est differente de l'ancienne //if(debug) System.out.println("Nom associe str/str "+nom+" slot: "+nom_slot+" valeurs: "+tmp+ "/"+valeur+"\n"); if ( tmp == null || !tmp.equals(valeur)){ //if (!tmpO.getString(nom_slot).equals(valeur) ) { // on recupere le factHandle relatif a l'objet try{ tmpFH = listeFactHandle.get(tmpO.getNom()); } catch(NullPointerException e){ System.err.println("erreur de recuperation dans le fact handle..."); } // on modifie son attribut tmpO.modifierAttributString(nom_slot, valeur); // update memory //this.session.update(listeFactHandle.get("myBool"), myBool ); this.session.update(tmpFH, tmpO); this.session.fireAllRules(); //if(debug) System.out.println("Modifié en memoire (str) "+tmpO.getNom()+" slot: "+nom_slot+" valeur: "+valeur); //if((debug)& (nom_slot.contains("courant"))) System.out.println("Fin modif (str) objet "+tmpO.getNom()+" slot: "+nom_slot+" valeur: "+valeur); } // pas propre mais gain de temps break; } } // si le nom est pas trouve on l'imprime a l'ecran } catch (NullPointerException e) { //if(!nom_slot.contains("_phase") & !nom_slot.contains("_seuil") & !nom_slot.contains("_color") & !nom_slot.contains("_left") & !nom_slot.contains("_right") & !nom_slot.contains("_middle")) { if(debug) System.out.println("Objet non reference dans les slots (str): " + nom_slot+ " valeur "+valeur); //} } // RAZ de elements temporaires tmpO = null; tmpFH = null; } De : Mario Fusco (JIRA) [mailto:issues@jboss.org] Envoyé : mercredi 24 septembre 2014 19:56 À : RAVENEL Nathalie 161957 Objet : [JBoss JIRA] (DROOLS-610) drools-worker-2 thread blocked and the main program blocks [Image supprimée par l'expéditeur.] Mario Fusco<https://issues.jboss.org/secure/ViewProfile.jspa?name=mfusco> commented on [Bug] DROOLS-610<https://issues.jboss.org/browse/DROOLS-610> Re: drools-worker-2 thread blocked and the main program blocks<https://issues.jboss.org/browse/DROOLS-610> Nathalie, for what I can see from the stack you attached, the deadlock is caused by the fact that you're misusing drools. In particular drools-worker-2.PNG shows that you're invoking a fireAllRules inside the execution of a drools consequence. For what I know this doesn't make any sense and I cannot see a valid reason for doing this, even because if a consequence is firing it means that you're already inside a fireAllRules. Please let me know if you have a use case that requires to do this, so we could discuss it. Otherwise I'll close this ticket as invalid. Cheers, Mario [Add Comment]<https://issues.jboss.org/browse/DROOLS-610#add-comment> Add Comment<https://issues.jboss.org/browse/DROOLS-610#add-comment> This message was sent by Atlassian JIRA (v6.3.1#6329-sha1:7df76f1) [Atlassian logo] -- This message was sent by Atlassian JIRA (v6.3.1#6329)