This tag in archiver XML configuration file is relevant for purging events. EventPublisher, BPM Events and BPM Process Store are the different BMServers, which process events. They process all the events that are fired in Business Process Server. An event can be purged only when all these BMServers have completed processing of that event. These components, except BPM Process Store, are optional, and may or may not get used in a Business Process Server system. Thus, checking whether they have already processed an event can be avoided by specifying value for running attribute as false.
