Re: [rules-users] How to troubleshoot Drools planner doing nothing?

That's weird: If there are no solver phases configured, it fails-fast, yet it doesn't log any solver phase messages. Logging has improved for 5.4.0.Beta1, try upgrading to that and put the logging level to trace for org.drools.planner. Alternatively, put a breakpoint in a method in DefaultLocalSearchSolverPhase. Op 30-01-12 13:43, aitchnyu schreef: > I wrote a program in Drools. But it does not do anything. As the logs > show, > the solver finishes in 2 ms and the 'best solution' is an untouched > version > of the initial state. > > I also noted that not a single movefactory object was created. And at 500 > moves/sec and 2 milliseconds of execution, only one move was attempted. > > Where do I start troubleshooting? > > SudokuGenerator sg = new SudokuGenerator(); > Solution sudoku = sg.createSudoku(); > Solver solver = createSolver(); > solver.setPlanningProblem(sudoku); > solver.solve(); > System.out.println("solver over"); > Sudoku result = (Sudoku) solver.getBestSolution(); > result.displaySolution(); //a method that prints the state of the > solution > > *Output logs in TRACE mode* > > jesvin@Jesvin-Technovia:~/dev/drools/sudoku$ java > in.co.technovia.sudoku.App > 2012-01-30 17:23:33,795 [main] INFO Solver started: time spend (1), > score > (0), new best score (0), random seed (0). > 2012-01-30 17:23:33,796 [main] INFO Solved: time spend (2), best score > (0), > average calculate count per second (500). > > > *Contents of the solver XML* > > <?xml version="1.0" encoding="UTF-8"?> > <solver> > <environmentMode>DEBUG</environmentMode> > > <solutionClass>in.co.technovia.sudoku.domain.Sudoku</solutionClass> > > <planningEntityClass>in.co.technovia.sudoku.domain.Digit</planningEntityClass> > <scoreDrl>/score.drl</scoreDrl> > <scoreDefinition> > <scoreDefinitionType>SIMPLE</scoreDefinitionType> > </scoreDefinition> > > <termination> > <scoreAttained>0</scoreAttained> > </termination> > > <constructionHeuristic> > <constructionHeuristicType>FIRST_FIT</constructionHeuristicType> > > </constructionHeuristic> > <localSearch> > <selector> > > > <moveFactoryClass>in.co.technovia.sudoku.solution.RowChangeMoveFactory</moveFactoryClass> > </selector> > <acceptor> > <completeSolutionTabuSize>1000</completeSolutionTabuSize> > </acceptor> > <forager> > > </forager> > </localSearch> > </solver> > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/How-to-troubleshoot-Drools-planner-doin... > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users@.jboss > https://lists.jboss.org/mailman/listinfo/rules-users > -- With kind regards, Geoffrey De Smet _______________________________________________ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users