Frequently asked questions (FAQ) about WebSphere ILOG JRules (last updated October 23, 2014)

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Abstract

The following list includes frequently asked questions (FAQ) about WebSphere ILOG JRules to help you troubleshoot potential problems and enhance how you use the product.

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Additional FAQ documents are available in the Related information section.


FAQ table of contents





Installing


What are the hardware and software requirements for WebSphere ILOG JRules Business Rule Management System Version 7.1?


Where can I find information about downloading WebSphere ILOG JRules BRMS V7.1?


How do I install WebSphere ILOG JRules 7.x on a Windows x64 environment using a 64 bits Java virtual machine (JVM)?


I want to update to the latest fix pack of JRules. What should I install? Where are the files? Is there an order for the installation of all the parts?


How do I install JRules in silent mode (without using the GUI)?


Where can I find installation instructions and generic keys for JRules?


How do I migrate to JRules 7.1?



Usage


Where can I find information about how to use WebSphere ILOG JRules V7.1?


How can I keep a web session of JRules Rule Execution Server Management Console from interfering with a web session of WebSphere administrative console (or another web application)?


How do I set an exception handler on a ruleset when using Rule Execution Server?


Which rule session do I use to call Rule Execution Server on a Java EE application server?


Can I deploy Rule Team Server to a cluster and how should I proceed?


How can I minimize the impact of ruleset parsing on RES execution requests?


How can I perform bulk operations on a rule project?


How do I deploy rules from the Eclipse Rule Studio to a secured Rule Execution Server (RES) using an https connection?


How do I check for null values in rules?



Troubleshooting


Where can I find help for WebSphere ILOG JRules BRMS V7.1?


While attempting to install JRules, the installation program refuses to proceed because it can't connect to ILOG installation server. Installer tells me there is a server error. How do I resolve this problem?


While attempting to install JRules offline, I send an email to offline@sam.ilog.com, but I get no reply or my request bounces back saying recipient address is invalid. How do I resolve this problem?


Why do I receive an unknownElement tag in the SOAP response while using transparent decision services?


I received a CORBA execution while executing a remote rule session in RES with trace enabled. How do I resolve this problem?


How can I improve the performance of Rule Studio?


How can I improve rule execution and Rule Execution Server performance?


When I run the diagnostics in the Rule Execution Server console, why does the test "Rule Session Second Execution" fail with a "java.lang.IllegalStateException: Not all XUs have been updated with the new ruleset" error?


Why does the error NoClassDefFoundError: ilog.views.util.IlvClassLoaderUtil occur when I try to display a ruleflow in Rule Studio?


Why does the exception "Model initialization failed. Cause already initialized" occur when I access the Rule Execution Server console?


Why is an unexpected ruleset version executed?


After installing Rule Execution Server, why can't I access the RES console?




FAQ questions and answers




Installing


The following questions and answers refer to installation.


FAQ: What are the hardware and software requirements for WebSphere ILOG JRules Business Rule Management System Version 7.1?
Answer: See WebSphere ILOG JRules Business Rule Management System Version 7.1, hardware and software requirements.


FAQ: Where can I find information about downloading WebSphere ILOG JRules BRMS V7.1?
Answer: See the WebSphere ILOG JRules BRMS V7.1 Download document.


FAQ: How do I install WebSphere ILOG JRules 7.x on a Windows x64 environment using a 64 bits Java virtual machine (JVM)?
Answer: See Installing JRules on a Windows x64 environment.


FAQ: I want to update to the latest fix pack of JRules. What should I install? Where are the files? Is there an order for the installation of all the parts?
Answer: See Upgrading JRules to the latest V7.1 fix pack.


FAQ: How do I install JRules in silent mode (without using the GUI)?
Answer: See Installing JRules in silent mode.


FAQ: Where can I find installation instructions and generic keys for JRules?
Answer V6.x: See Instructions for using JRules Replacement Keys.


FAQ: How do I migrate to JRules 7.1?
Answer: See the following technote: Migrating to JRules v7.1.



Usage


The following questions and answers refer to usage.


FAQ: Where can I find information about how to use WebSphere ILOG JRules V7.1?
Answer: See the online documentation.


FAQ: How can I keep a web session of JRules Rule Execution Server management console from interfering with a web session of WebSphere administrative console (or another web application)?
Answer V7.x: See Session interference between JRules components and other web applications.


FAQ: How do I set an exception handler on a ruleset when using Rule Execution Server?
Answer: See Using an exception handler when executing rules in Rule Execution Server.


FAQ: Which rule session do I use to call Rule Execution Server on a Java EE application server?
Answer: See Choose a rule session to call Rule Execution Server on a Java EE application server.


FAQ: Can I deploy Rule Team Server to a cluster and how should I proceed?
Answer: See Clustering Rule Team Server.


FAQ: How can I minimize the impact of ruleset parsing on RES execution requests?
Answer: See Minimizing the impact of ruleset parsing on Rule Execution Server (RES) execution requests.


FAQ: How can I perform bulk operations on a rule project? For example, I want to migrate all decision tables and ruleflows from JRules 6.7 to JRules 7, remove all checkings on decision tables so that building is much faster, and automatically remove members that are defined in the B2X code that do not exist in the BOM
Answer: See Rule Studio Plugin to repair a Rule Project.


FAQ: How do I deploy rules from the Eclipse Rule Studio to a secured Rule Execution Server (RES) using an https connection?
Answer: When the connection to the RES console is secured with a certificate, the Rule Studio must accept this certificate. If the certificate is self signed, JRules provides a setup property. For more information, see "CertPathBuilderException: unable to find valid certification path to requested target" when connecting to Rule Team Server or Rule Execution Server HTTPS. If the certificate is not self signed, which is the case for WebSphere Application Server V7 for example, you must register the certificate in the KeyStore of the Rule Studio JVM. For more information, see Deploying a ruleapp to Rule Execution Server (RES) over HTTPS.


FAQ: How do I check for null values in rules?
Answer: See Check for null values in rules.



Troubleshooting


The following questions and answers refer to troubleshooting.


FAQ: Where can I find help using WebSphere ILOG JRules V7.1?
Answer: See ILOG Support Pages.


FAQ: While attempting to install JRules, the installation program refuses to proceed because it can't connect to ILOG installation server. Installer tells me there is a server error. How do I resolve this problem?
Answer V6.x: This server is no longer operational. The error message is (text varies depending on version): ILOG Installation Server Error The ILOG installation server could not give the installation rights to the installer. See Installation instructions and generic keys for JRules. You can install JRules using a generic ilogrights file.


FAQ: While attempting to install JRules offline, I send an email to offline@sam.ilog.com, but I get no reply or my request bounces back saying recipient address is invalid. How do I resolve this problem?
Answer V6.x: The mail robot in charge of delivering ilogrights by mail is no longer operational. You can install JRules using a generic ilogrights file. See Installation instructions and generic keys for JRules.


FAQ: Why do I receive an unknownElement tag in the SOAP response of a transparent decision service?
Answer: See unknownElement tag in SOAP response.


FAQ: I received a CORBA exception while executing a remote rule session in RES with trace enabled. How do I resolve this problem?
Answer: See "org.omg.CORBA.MARSHAL: Unable to read value from underlying bridge" when executing rules in RES with trace enabled.


FAQ: How can I improve the performance of Rule Studio?
Answer: The document Improve Performance of Rule Designer (WODM) and Rule Studio (JRules) addresses how to improve the performance of Rule Studio.


FAQ: How can I improve rule execution and Rule Execution Server performance?
Answer: The document Improve performance of rule execution and Rule Execution Server (RES) for WODM and JRules addresses how to improve performance.


FAQ: When I run the diagnostics in the Rule Execution Server console, why does the test "Rule Session Second Execution" fail with a "java.lang.IllegalStateException: Not all XUs have been updated with the new ruleset" error?
Answer: See Rule Execution Server diagnostics failure.


FAQ: Why does the error NoClassDefFoundError: ilog.views.util.IlvClassLoaderUtil occur when I try to display a ruleflow in Rule Studio?
Answer: See the following technote: NoClassDefFoundError: ilog.views.util.IlvClassLoaderUtil when viewing a ruleflow in Rule Studio.


FAQ: Why does the exception "Model initialization failed. Cause already initialized" occur when I access the Rule Execution Server console?
Answer: See the following technote: 'Model initialization failed. Cause already initialized' error when accessing Rule Execution Server console.


FAQ: Why is an unexpected ruleset version executed?
Answer: See the following technote: An unexpected ruleset version is executed.


FAQ: After installing Rule Execution Server, why can't I access the RES console?
Answer: See the following technote: Cannot access Decision Center or Rule Execution Server console (ODM).




Related information

FAQ - IBM Business Process Manager
FAQ - WebSphere Business Compass
FAQ - WebSphere Integration Developer
FAQ - IBM Integration Designer
FAQ - IBM Business Monitor
FAQ - WebSphere ILOG Decision Validation Services
FAQ - WebSphere ILOG Rule Team Server
FAQ - WebSphere Decision Center
FAQ - WebSphere Decision Server Rules
FAQ - WebSphere Decision Server Events

Product Alias/Synonym

IBM WebSphere ILOG JRules

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Document information


More support for:

WebSphere ILOG JRules

Software version:

7.1

Operating system(s):

Windows

Reference #:

7023694

Modified date:

2012-05-14

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