15.5. Using Eviction
15.5.1. Initialize Eviction
To initialize eviction, set the eviction element's
max-entries attributes value to a number greater than zero. Adjust the value set for max-entries to discover the optimal value for your configuration. It is important to remember that if too large a value is set for max-entries, JBoss Data Grid runs out of memory.
The following procedure outlines the steps to initialize eviction in JBoss Data Grid:
Procedure 15.1. Initialize Eviction
Add the Eviction Tag
Add the <eviction> tag to your project's <cache> tags as follows:<eviction />
Set the Eviction Strategy
Set thestrategyvalue to set the eviction strategy employed. Possible values areLRU,UNORDEREDandLIRS(orNONEif no eviction is required). The following is an example of this step:<eviction strategy="LRU" />
Set the Maximum Entries
Set the maximum number of entries allowed in memory. The default value is-1for unlimited entries.- In Library mode, set the
maxEntriesparameter as follows:<eviction strategy="LRU" maxEntries="200" />
- In Remote Client Server mode, set the
max-entriesas follows:<eviction strategy="LRU" max-entries="200" />
Result
Eviction is configured for the target cache.
