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# Explicit Query Refreshes

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Some distributed systems require only a small number of objects to be consistent across the servers in the system. Conversely, other systems require that several specific objects must always be guaranteed to be up-to-date, regardless of the cost. If you build such a system, you can explicitly refresh selected objects from the database at appropriate intervals, without incurring the full cost of distributed cache coordination.

To implement this type of strategy, do the following:

1. Configure a set of queries that refresh the required objects.

2. Establish an appropriate refresh policy.

3. Invoke the queries as required to refresh the objects.