Drools 是一个 Java 的商业过程实现，这是 Bob McWhirter 所编写的一个开源项目，由 JBoss 和 Red Hat Inc 支持。 Drools 提供一个核心的 Business Rules Engine(BRE) 和一个网页编写规则的管理系统（Drools Workbench）和 一个 Eclipse IDE 的插件，一同构成完整的 Drools 生态。
而这篇文章则主要侧重于 Drools Workbench。
Workbench
org.guvnor.m2repo.dir
The workbench stores its data, by default in the directory $WORKING_DIRECTORY/.niogit, for example wildfly-8.0.0.Final/bin/.niogit, but it can be overridden with the system property -Dorg.uberfire.nio.git.dir.
Note In production, make sure to back up the workbench data directory.
18.1.3. System properties Here’s a list of all system properties:
org.uberfire.nio.git.dir: Location of the directory .niogit. Default: working directory
org.uberfire.nio.git.daemon.enabled: Enables/disables git daemon. Default: true
org.uberfire.nio.git.daemon.host: If git daemon enabled, uses this property as local host identifier. Default: localhost
org.uberfire.nio.git.daemon.port: If git daemon enabled, uses this property as port number. Default: 9418
org.uberfire.nio.git.ssh.enabled: Enables/disables ssh daemon. Default: true
org.uberfire.nio.git.ssh.host: If ssh daemon enabled, uses this property as local host identifier. Default: localhost
org.uberfire.nio.git.ssh.port: If ssh daemon enabled, uses this property as port number. Default: 8001
org.uberfire.nio.git.ssh.cert.dir: Location of the directory .security where local certificates will be stored. Default: working directory
org.uberfire.nio.git.ssh.passphrase: Passphrase to access your Operating Systems public keystore when cloning git repositories with scp style URLs; e.g. git@github.com:user/repository.git.
org.uberfire.metadata.index.dir: Place where Lucene .index folder will be stored. Default: working directory
org.uberfire.cluster.id: Name of the helix cluster, for example: kie-cluster
org.uberfire.cluster.zk: Connection string to zookeeper. This is of the form host1:port1,host2:port2,host3:port3, for example: localhost:2188
org.uberfire.cluster.local.id: Unique id of the helix cluster node, note that ‘:’ is replaced with ‘_’, for example: node1_12345
org.uberfire.cluster.vfs.lock: Name of the resource defined on helix cluster, for example: kie-vfs
org.uberfire.cluster.autostart: Delays VFS clustering until the application is fully initialized to avoid conflicts when all cluster members create local clones. Default: false
org.uberfire.sys.repo.monitor.disabled: Disable configuration monitor (do not disable unless you know what you’re doing). Default: false
org.uberfire.secure.key: Secret password used by password encryption. Default: org.uberfire.admin
org.uberfire.secure.alg: Crypto algorithm used by password encryption. Default: PBEWithMD5AndDES
org.uberfire.domain: security-domain name used by uberfire. Default: ApplicationRealm
org.guvnor.m2repo.dir: Place where Maven repository folder will be stored. Default: working-directory/repositories/kie
org.guvnor.project.gav.check.disabled: Disable GAV checks. Default: false
org.kie.example.repositories: Folder from where demo repositories will be cloned. The demo repositories need to have been obtained and placed in this folder. Demo repositories can be obtained from the kie-wb-6.2.0-SNAPSHOT-example-repositories.zip artifact. This System Property takes precedence over org.kie.demo and org.kie.example. Default: Not used.
org.kie.demo: Enables external clone of a demo application from GitHub. This System Property takes precedence over org.kie.example. Default: true
org.kie.example: Enables example structure composed by Repository, Organization Unit and Project. Default: false
org.kie.build.disable-project-explorer: Disable automatic build of selected Project in Project Explorer. Default: false
To change one of these system properties in a WildFly or JBoss EAP cluster:
Edit the file $JBOSS_HOME/domain/configuration/host.xml.
Locate the XML elements server that belong to the main-server-group and add a system property, for example: