On 17 Aug 2014, at 01:42, Jan Rose <[email protected]> wrote: > Mark, thanks for responding. Do you have a recommendation as to how much I > should > increase the perm gen space? The more rules, the more permgen space. So there is no recommendation, other than “enough”. > Also, is there anything else I can do to run my decision tables more > efficiently? You can try using the MVEL dialect for your decision table - this uses reflection based executions, instead of code and uses less perm gen, in return for using more heap. http://lists.jboss.org/pipermail/rules-users/2011-November/022912.html
Mark > > Jan > > > try increasing your perm gen space. > Mark On 16 Aug 2014, at 04:11, Jan Rose <ufos at comcast.net> wrote: > > Would like some advice regarding using Decision Tables in DROOLS 5.6.0 Final. > We have decision tables with over 12,000 rows. > It is a basic ‘look-up’ table with 3 conditions and 2 actions. > The conditions are, for example: Company = X Dept = X Class = X then value = > X and log X. > When I reduced the number of rows to approx. 500 . .. it works. > I have set > the max memory in the JVM to 2 gigs. > We have tried compiling the decision tables using the spreadsheet compiler > as well as the decision table compiler. > > Below is the error when using the decision table compiler. > However, we get the same PermGen space error with the spreadsheet compiler. > > > > Obviously, we need to be able to have more than 500 rows in our decision > table(s). Any advice would be appreciated. > > > Aug 14, 2014 6:33:09 PM com.macys.test.rules.engine.AttribDecisionTbl main > > INFO: found file:c:\attribute-data.xls > Aug 14, 2014 6:33:10 PM > com.macys.test.test_drools.RuleRunner loadRules >INFO: Loading file: > log-rules.drl > Aug 14, 2014 6:33:10 PM com.macys.test.test_drools.RuleRunner > loadRuleFile > INFO: found rule file:log-rules.drl > Aug 14, 2014 6:33:11 PM > com.macys.test.test_drools.RuleRunner loadRules > INFO: Loading file: > AttributeRules-MDSLife-V1.xls >Aug 14, 2014 6:33:11 PM > com.macys.test.test_drools.RuleRunner loadExcelRules > INFO: found > file:AttributeRules-MDSLife-V1.xls > Exception in thread "main" > java.lang.OutOfMemoryError: PermGen space > at > java.lang.ClassLoader.defineClass1(Native Method) > at > java.lang.ClassLoader.defineClass(ClassLoader.java:800) > at > org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass(JavaDialectRuntimeData.java:624) > > at > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:254) > >at > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237) > > at > org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:358) > at > org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:434) > > at > org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:429) > > at > org.drools.rule.JavaDialectRuntimeData.onBeforeExecute(JavaDialectRuntimeData.java:257) > > at > org.drools.rule.DialectRuntimeRegistry.onBeforeExecute(DialectRuntimeRegistry.java:139) > > at org.drools.compiler.PackageBuilder.reloadAll(PackageBuilder.java:1202) > > at > org.drools.compiler.PackageBuilder.compileAllRules(PackageBuilder.java:951) > > at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:938) > > at > org.drools.compiler.PackageBuilder.addPackageFromDecisionTable(PackageBuilder.java:451) > > at > org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:715) > > at > org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:51) > > at > com.macys.test.test_drools.RuleRunner.loadExcelRules(RuleRunner.java:161) > > at com.macys.test.test_drools.RuleRunner.loadRules(RuleRunner.java:53) > at > com.macys.test.test_drools.RuleRunner.runStatelessRules(RuleRunner.java:217) > > at > com.macys.test.rules.engine.AttribDecisionTbl.main(AttribDecisionTbl.java:99) > > > >_______________________________________________ > rules-users mailing > list > rules-users at lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/rules-users -------------- next part > -------------- An HTML attachment was scrubbed... URL: > http://lists.jboss.org/pipermail/rules-users/attachments/20140816/e86011b7/attachment-0001.html > > > Sent from my iPad > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users
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