[jboss-jira] [JBoss JIRA] (DROOLS-1631) newKieSession("rules") takes 2 minutes in 6.2.0.Final - takes 20 minutes in 6.5.0.Final and 7.0.0.Final

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-1631?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco updated DROOLS-1631:
--------------------------------
    Sprint: 2017 Week 24-25


> newKieSession("rules") takes 2 minutes in 6.2.0.Final - takes 20 minutes in 6.5.0.Final and 7.0.0.Final
> -------------------------------------------------------------------------------------------------------
>
>                 Key: DROOLS-1631
>                 URL: https://issues.jboss.org/browse/DROOLS-1631
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.5.0.Final, 7.0.0.Final
>            Reporter: Mark Langford
>            Assignee: Mario Fusco
>
> We are currently converting our iLog rule engine solution to a Drools based system with good success.  The project is a Maven project using Spring Boot 1.5.2 and Java 1.8.  We have converted 1800+ rules (including 83 decision tables) from their iLog format to Drools format.  We were using version 6.2.0.  The newKieSession method took approx 2 minutes on the first run to compile our rules and provide the kieSession: -
>     KieContainer kieContainer = KieServices.Factory.get().newKieClasspathContainer();
>     KieSession kSession = kieContainer.newKieSession("ric-rules");
> I decided to upgrade to version 6.5.0 by updating our pom.xml. 
> When I ran the code again, the above newKieSession method took 20 minutes to complete.  It also seems like our rule processing stalled or hung with no Exceptions being reported.
> I have the following dependencies in our pom.xml
>                 <drools.version>6.5.0.Final</drools.version>
>                 <dependencies>
>                <dependency>
> 			<groupId>org.springframework.boot</groupId>
> 			<artifactId>spring-boot-starter-web</artifactId>
> 		</dependency>
> 		
> 		<dependency>
> 			<groupId>org.springframework.boot</groupId>
> 			<artifactId>spring-boot-starter-jdbc</artifactId>
> 		</dependency>
> 		
> 		<dependency>
> 			<groupId>org.springframework.boot</groupId>
> 			<artifactId>spring-boot-starter-data-jpa</artifactId>
> 		</dependency>
> 		
> 		<dependency>
> 	        <groupId>org.springframework.boot</groupId>
> 	        <artifactId>spring-boot-starter-mail</artifactId>
> 	    </dependency>
> 		<dependency>
> 			<groupId>org.springframework.boot</groupId>
> 			<artifactId>spring-boot-starter-actuator</artifactId>
> 		</dependency>
> 		
> 		<dependency>
> 			<groupId>org.springframework.boot</groupId>
> 			<artifactId>spring-boot-starter-test</artifactId>
> 			<scope>test</scope>
> 		</dependency>
> 		
> 		<dependency>
> 	        <groupId>org.springframework</groupId>
> 	        <artifactId>spring-jms</artifactId>
> 	    </dependency>
> 	    
> 		<dependency>
> 	        <groupId>org.kie</groupId>
> 		    <artifactId>kie-api</artifactId>
> 		    <version>${drools.version}</version>
> 	    </dependency>
> 	    <dependency>
> 	        <groupId>org.drools</groupId>
> 		    <artifactId>drools-core</artifactId>
> 		    <version>${drools.version}</version>
> 	    </dependency>
> 	    <dependency>
> 	        <groupId>org.drools</groupId>
> 		    <artifactId>drools-compiler</artifactId>
> 		    <version>${drools.version}</version>
> 	    </dependency>
> 	    <dependency>
> 	        <groupId>org.drools</groupId>
> 		    <artifactId>drools-decisiontables</artifactId>
> 		    <version>${drools.version}</version>
> 	    </dependency>
> 	    <dependency>
> 	        <groupId>org.drools</groupId>
> 		    <artifactId>drools-templates</artifactId>
> 		    <version>${drools.version}</version>
> 	    </dependency>
> 	    <dependency>
>             <groupId>org.apache.commons</groupId>
>             <artifactId>commons-lang3</artifactId>
> 			<version>3.6</version>
>         </dependency>
> I also found someone else on Stackoverflow with the same/similar issue
> [https://stackoverflow.com/questions/44406051/drools-6-5-0-drl-compile-time-increased-10-times/44713857#44713857]



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