Before preloading begins, you must ensure that enough cache servers have started to hold the objects from the backing store. The cluster does not start processing incoming data until the required objects have been loaded into the cache.
See Cluster Tab — Cache OM — Configuration Setting in
TIBCO BusinessEvents Administration, for details on specifying the minimum number of cache servers that must start before cache loading begins
After the specified number of servers has started, the processing unit that acquires the lock first performs the cache loading. Any processing unit can acquire the lock. All agents wait until backing store data has finished loading before they start.