4.5. Configure Expiration

In Red Hat JBoss Data Grid, expiration is configured in a manner similar to eviction.

Procedure 4.1. Configure Expiration

Add the Expiration Tag
Add the <expiration> tag to your project's <cache> tags as follows:
```
<expiration />
```
```
<expiration />
```
Copy to Clipboard Toggle word wrap
Set the Expiration Lifespan
Set the lifespan value to set the period of time (in milliseconds) an entry can remain in memory. The following is an example of this step:
```
<expiration lifespan="1000" />
```
```
<expiration lifespan="1000" />
```
Copy to Clipboard Toggle word wrap
Set the Maximum Idle Time
Set the time that entries are allowed to remain idle (unused) after which they are removed (in milliseconds). The default value is -1 for unlimited time.
1. In Library mode, set the maxIdle parameter as follows:
```
<expiration lifespan="1000" maxIdle="1000" />
```
```
<expiration lifespan="1000" maxIdle="1000" />
```
  Copy to Clipboard Toggle word wrap
  - In Remote Client Server mode, set the max-idle as follows:
    <expiration lifespan="1000" max-idle="1000" />
    Copy to Clipboard Toggle word wrap

Result

Expiration is now configured for the cache implementation.