[jboss-jira] [JBoss JIRA] (JBRULES-3413) NPE during benchmark when no solution found so far

Geoffrey De Smet (JIRA) jira-events at lists.jboss.org
Fri May 4 09:54:18 EDT 2012 

    [ https://issues.jboss.org/browse/JBRULES-3413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12690428#comment-12690428 ] 

Geoffrey De Smet edited comment on JBRULES-3413 at 5/4/12 9:52 AM:
-------------------------------------------------------------------

Fixed. Instead of an NPE, it does generate a html statistics report now, for example:
{code}
Solver	medium01	long02	medium_hint01	medium_hint02	Average	Ranking
tabuSearch-moveTabu	0hard/-373soft	failed	0hard/-171soft	0hard/-542soft	0hard/-362soft	0
{code}
Notice the "failed" benchmark.

In the log, you see this until JBRULES-3462 is fixed:
{code}
2012-05-04 15:47:53,981 [main] INFO  Benchmarking failed: failureCount (1), statistic html overview (/home/gdesmet/projects/jboss/droolsjbpm/drools-planner/drools-planner-examples/local/data/nurserostering/medium/2012-05-04_154739/statistic/index.html).
Exception in thread "main" java.lang.IllegalStateException: Benchmarking failed: failureCount (1). The first exception is chained.
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.benchmarkingEnded(DefaultPlannerBenchmark.java:289)
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.benchmark(DefaultPlannerBenchmark.java:161)
	at org.drools.planner.examples.common.app.CommonBenchmarkApp.process(CommonBenchmarkApp.java:32)
	at org.drools.planner.examples.nurserostering.app.NurseRosteringBenchmarkApp.main(NurseRosteringBenchmarkApp.java:49)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.lang.IllegalStateException: Score is null. TODO fix JBRULES-3462.
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.runSingleBenchmarks(DefaultPlannerBenchmark.java:245)
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.benchmark(DefaultPlannerBenchmark.java:160)
	... 7 more
{code}
                
      was (Author: ge0ffrey):
    Fixed. Instead of an NPE, it does generate a report now, for example:
{code}
Solver	medium01	long02	medium_hint01	medium_hint02	Average	Ranking
tabuSearch-moveTabu	0hard/-373soft	failed	0hard/-171soft	0hard/-542soft	0hard/-362soft	0
{code}
Notice the "failed" benchmark.

In the log, you see this until JBRULES-3462 is fixed:
{code}
2012-05-04 15:47:53,981 [main] INFO  Benchmarking failed: failureCount (1), statistic html overview (/home/gdesmet/projects/jboss/droolsjbpm/drools-planner/drools-planner-examples/local/data/nurserostering/medium/2012-05-04_154739/statistic/index.html).
Exception in thread "main" java.lang.IllegalStateException: Benchmarking failed: failureCount (1). The first exception is chained.
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.benchmarkingEnded(DefaultPlannerBenchmark.java:289)
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.benchmark(DefaultPlannerBenchmark.java:161)
	at org.drools.planner.examples.common.app.CommonBenchmarkApp.process(CommonBenchmarkApp.java:32)
	at org.drools.planner.examples.nurserostering.app.NurseRosteringBenchmarkApp.main(NurseRosteringBenchmarkApp.java:49)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.lang.IllegalStateException: Score is null. TODO fix JBRULES-3462.
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.runSingleBenchmarks(DefaultPlannerBenchmark.java:245)
	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.benchmark(DefaultPlannerBenchmark.java:160)
	... 7 more
{code}
                  
> NPE during benchmark when no solution found so far
> --------------------------------------------------
>
>                 Key: JBRULES-3413
>                 URL: https://issues.jboss.org/browse/JBRULES-3413
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-planner
>    Affects Versions: 5.4.0.Beta2
>            Reporter: Martin Vecera
>            Assignee: Geoffrey De Smet
>             Fix For: 5.5.0.Beta1
>
>
> Running a benchamrk on a slow machine throws a NPE because there is no best solution found yet.
> Benchmark log:
> {code}
> 19:19:09.454 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.b.core.DefaultPlannerBenchmark - Benchmarking started: solverBenchmarkList size (2).
> 19:19:09.465 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.b.core.DefaultPlannerBenchmark - ================================================================================
> 19:19:09.465 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.b.core.DefaultPlannerBenchmark - Warming up
> 19:19:09.465 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.b.core.DefaultPlannerBenchmark - ================================================================================
> 19:19:14.598 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving started: time spend (0), score (null), new best score (null), random seed (0).
> 19:19:16.809 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.c.g.DefaultGreedyFitSolverPhase - Phase construction heuristic ended: step total (24), time spend (2211), best score (0hard/-42soft).
> 19:20:22.537 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.l.DefaultLocalSearchSolverPhase - Phase local search ended: step total (30), time spend (67939), best score (0hard/-33soft).
> 19:20:22.538 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving ended: time spend (67940), best score (0hard/-33soft), average calculate count per second (17).
> 19:20:22.538 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.b.core.DefaultPlannerBenchmark - ================================================================================
> 19:20:22.538 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.b.core.DefaultPlannerBenchmark - Finished warmUp
> 19:20:22.538 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.b.core.DefaultPlannerBenchmark - ================================================================================
> 19:21:04.936 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving started: time spend (0), score (null), new best score (null), random seed (0).
> 19:21:23.205 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.c.g.DefaultGreedyFitSolverPhase - Phase construction heuristic ended: step total (24), time spend (18269), best score (0hard/-42soft).
> 19:21:25.876 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.l.DefaultLocalSearchSolverPhase - Phase local search ended: step total (83), time spend (20940), best score (0hard/-16soft).
> 19:21:28.444 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.l.DefaultLocalSearchSolverPhase - Phase local search ended: step total (36), time spend (23508), best score (0hard/0soft).
> 19:21:28.445 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving ended: time spend (23509), best score (0hard/0soft), average calculate count per second (286).
> 19:21:28.988 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving started: time spend (0), score (null), new best score (null), random seed (0).
> 19:21:29.759 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.c.g.DefaultGreedyFitSolverPhase - Phase construction heuristic ended: step total (24), time spend (771), best score (0hard/-42soft).
> 19:21:31.522 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.l.DefaultLocalSearchSolverPhase - Phase local search ended: step total (93), time spend (2534), best score (0hard/-21soft).
> 19:21:31.881 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.l.DefaultLocalSearchSolverPhase - Phase local search ended: step total (10), time spend (2893), best score (0hard/0soft).
> 19:21:31.882 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving ended: time spend (2894), best score (0hard/0soft), average calculate count per second (1005).
> 19:21:32.121 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving started: time spend (0), score (null), new best score (null), random seed (0).
> 19:21:35.250 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.c.g.DefaultGreedyFitSolverPhase - Phase construction heuristic ended: step total (93), time spend (3129), best score (-6hard/-214soft).
> 19:22:05.244 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.l.DefaultLocalSearchSolverPhase - Phase local search ended: step total (166), time spend (33123), best score (0hard/-249soft).
> 19:22:39.981 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.l.DefaultLocalSearchSolverPhase - Phase local search ended: step total (2), time spend (67860), best score (0hard/-239soft).
> 19:22:39.981 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving ended: time spend (67860), best score (0hard/-239soft), average calculate count per second (166).
> 19:22:54.490 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving started: time spend (0), score (null), new best score (null), random seed (0).
> 19:23:54.743 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.c.c.g.DefaultGreedyFitSolverPhase - Phase construction heuristic ended: step total (53), time spend (60253), best score (null).
> 19:23:54.748 [org.drools.planner.examples.tournaments.Benchmark.main()] INFO  o.d.p.core.solver.DefaultSolver - Solving ended: time spend (60258), best score (null), average calculate count per second (54).
> {code}
> Exception:
> {code}
> Caused by: java.lang.NullPointerException
> 	at org.drools.planner.benchmark.core.ProblemBenchmark.benchmark(ProblemBenchmark.java:127)
> 	at org.drools.planner.benchmark.core.DefaultPlannerBenchmark.benchmark(DefaultPlannerBenchmark.java:133)
> 	at org.drools.planner.examples.tournaments.Benchmark.main(Benchmark.java:25)
> 	... 6 more
> {code}

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