[wildfly-dev] standalone/ directory shared by multiple Wildfly instances?

Hello, could anybody confirm if it's OK (or not OK) to run multiple clustering Wildfly instances that would share common standalone/ directory? Even if the instances are supposed to be running the same deployments? I always thought that the standalone/ directory should be separate for each Wildfly/EAP instance, but I can't find any resources that would clearly state that shared standalone/ is a problem. The problems I think of are: * instances could override their standalone.xml config, * instances could override some transactional or cache data? Thanks :), Tomas