<html><head></head><body bgcolor="#FFFFFF"><div></div><div>Mark, thanks for responding. Do you have a recommendation as to how much I should </div><div>increase the perm gen space? </div><div> Also, is there anything else I can do to run my decision tables more efficiently?</div><div><br></div><div>Jan</div><div><br></div><div><br><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;">try increasing your perm gen space.</span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"> Mark
On 16 Aug 2014, at 04:11, Jan Rose <<a href="https://lists.jboss.org/mailman/listinfo/rules-users">ufos at comcast.net</a></span></font><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;">> wrote:
><i> </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i>Would like some advice regarding using Decision Tables in DROOLS 5.6.0 Final. </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i> We have decision tables with over 12,000 rows. </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i> It is a basic ‘look-up’ table with 3 conditions and 2 actions. </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i> The conditions are, for example: Company = X Dept = X Class = X then value = X and log X.</i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i> When I reduced the number of rows to approx. 500 . .. it works.
</i>><i> I have set the max memory in the JVM to 2 gigs. </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i> We have tried compiling the decision tables using the spreadsheet compiler as well as the decision table compiler.
</i></span></font><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;">><i> </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i>Below is the error when using the decision table compiler. </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i> However, we get the same PermGen space error with the spreadsheet compiler.
</i>><i>
</i></span></font><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;">><i> </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i>Obviously, we need to be able to have more than 500 rows in our decision table(s). Any advice would be appreciated. </i>><i>
</i>><i> </i></span></font></pre><pre><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="white-space: normal;"><i>Aug 14, 2014 6:33:09 PM com.macys.test.rules.engine.AttribDecisionTbl main
</i>><i> INFO: found file:c:\attribute-data.xls
</i>><i> Aug 14, 2014 6:33:10 PM com.macys.test.test_drools.RuleRunner loadRules
</i>><i> INFO: Loading file: log-rules.drl
</i>><i> Aug 14, 2014 6:33:10 PM com.macys.test.test_drools.RuleRunner loadRuleFile
</i>><i> INFO: found rule file:log-rules.drl
</i>><i> Aug 14, 2014 6:33:11 PM com.macys.test.test_drools.RuleRunner loadRules
</i>><i> INFO: Loading file: AttributeRules-MDSLife-V1.xls
</i>><i> Aug 14, 2014 6:33:11 PM com.macys.test.test_drools.RuleRunner loadExcelRules
</i>><i> INFO: found file:AttributeRules-MDSLife-V1.xls
</i>><i> Exception in thread "main" java.lang.OutOfMemoryError: PermGen space
</i>><i> at java.lang.ClassLoader.defineClass1(Native Method)
</i>><i> at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
</i>><i> at org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass(JavaDialectRuntimeData.java:624)
</i>><i> at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:254)
</i>><i> at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237)
</i>><i> at org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88)
</i>><i> at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
</i>><i> at org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:434)
</i>><i> at org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:429)
</i>><i> at org.drools.rule.JavaDialectRuntimeData.onBeforeExecute(JavaDialectRuntimeData.java:257)
</i>><i> at org.drools.rule.DialectRuntimeRegistry.onBeforeExecute(DialectRuntimeRegistry.java:139)
</i>><i> at org.drools.compiler.PackageBuilder.reloadAll(PackageBuilder.java:1202)
</i>><i> at org.drools.compiler.PackageBuilder.compileAllRules(PackageBuilder.java:951)
</i>><i> at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:938)
</i>><i> at org.drools.compiler.PackageBuilder.addPackageFromDecisionTable(PackageBuilder.java:451)
</i>><i> at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:715)
</i>><i> at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:51)
</i>><i> at com.macys.test.test_drools.RuleRunner.loadExcelRules(RuleRunner.java:161)
</i>><i> at com.macys.test.test_drools.RuleRunner.loadRules(RuleRunner.java:53)
</i>><i> at com.macys.test.test_drools.RuleRunner.runStatelessRules(RuleRunner.java:217)
</i>><i> at com.macys.test.rules.engine.AttribDecisionTbl.main(AttribDecisionTbl.java:99)
</i>><i>
</i>><i>
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