Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved


Chapter 7 Distributed Cache OM : Starting a Minimum Number (Quorum) of Cache Agents

Starting a Minimum Number (Quorum) of Cache Agents
At system startup, one node in the cache cluster loads objects from the backing store to the cache cluster, according to the preloading settings (see Managing Storage and Retrieval of Entity Objects). Any node in the cluster can perform the preloading.
Before preloading begins, you must ensure that enough cache agents 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 Chapter 24, Cache OM and Cluster Configuration in TIBCO BusinessEvents Developer’s Guide, for details on specifying the minimum number of cache agents that must start before cache loading begins.
After the specified number of cache agents 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.
 

Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved