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TIBCO BusinessEvents® Enterprise Edition 6.3.1

# Configuring Preloading Options

Preloading refers to the loading of the cache with objects from the backing store, at system startup.

If preload is not enabled, objects are loaded as needed from store. This can have an impact on the performance when the object is loaded for the first time from store into cache.

At the default level, you can choose to preload or not preload two types of items separately: the objects themselves, and the handles to the objects, which are stored in a separate table called the object table. You can also specify the number of objects to preload (one setting for both types of items).

At the individual object level, you can override the preload setting as follows:

- Use the default setting
- Preload (True)
- Do not preload (False)

You can also specify (or override) how many objects to preload.

Note: A tuning property for preloading is available: `be.engine.cluster.recovery.threads`
Before you beginSet up the cluster with Object Management Mode as `Cache`.

Procedure
1. In the TIBCO BusinessEvents Studio CDD editor, select the Cluster tab.
2. Select Object Management > Domain Objects > Default node and configure settings as explained in Domain Objects Default Settings Reference.
3. To add object-level overrides and other object-level settings do the following:
   1. Select Object Management > Domain Objects > Default node and click Add.

   2. In the Entity Selection dialog, select the ontology object type or types you want to configure and click OK.

      The first entity in the list is selected and the configuration section for the entity displays on the right.

   3. Select the /uri node for each selected entity in turn and configure the settings on the right as needed. You can also edit existing override entries, and remove entries not needed (by clicking Remove). See Domain Object Override Settings Reference.

4. Save the resource.

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TIBCO BusinessEvents® Enterprise Edition

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