Mark, thanks for responding. Do you have a recommendation as to how much I
should
increase the perm gen space?
Also, is there anything else I can do to run my decision tables more
efficiently?
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) >
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> rules-users at lists.jboss.org >
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