Apache Geode

General Region Data Management

For all regions, you have options to control memory use, back up your data to disk, and discard stale data from your cache.

• Persistence and Overflow

  You can persist data on disk for backup purposes and overflow it to disk to free up memory without completely removing the data from your cache.

• Eviction

  Use eviction to control data region size. Eviction actions are triggered by space-based thresholds.

• Expiration

  Use expiration to keep data current and to reduce region size by removing stale entries. Expiration actions are triggered by time-based thresholds.

• Keeping the Cache in Sync with Outside Data Sources

  Keep your distributed cache in sync with an outside data source by programming and installing application plug-ins for your region.