Cache

Summary

Cache provides tools and information for managing the internal search cache. When enabled, the cache stores frequently accessed search results and data to improve performance and reduce system load.

You can access the current cache status under More settings → System information → Cache tab.

Cache Settings

The Cache settings area shows configuration options for the search cache:

• Cache root directory — file system path where cache data is stored.
• Ignore filter order — controls how search queries with filters are cached.

Changing settings on this page may affect the stability of the search environment.

Cache Monitor

Cache monitor provides real-time statistics about cache performance and contents:

• Channel — channel whose cache data is shown.
• Entries — current number of cache entries for that channel.
• Cache hit percentage — percentage of search requests served directly from the cache.

Clearing the Cache

If the cache is not cleared during the day by an import, a manual clear, or cache entry lifetime rules, FactFinder automatically clears it between midnight and 6 a.m.

Clearing the Cache in the Cache Monitor Grid

Click Clear cache in the Cache monitor grid to clear the current search cache for the selected channel.

Use this after data updates, configuration changes, or while troubleshooting cache-related issues.

Clearing the cache can temporarily reduce search performance until the cache is repopulated.

Clearing the Cache in the Toolbar

Some configuration changes require a manual cache clear to take effect immediately. FactFinder signals this with a yellow icon with arrows and an exclamation mark.

Clicking the icon opens a dialog that explains the cache must be cleared and lets you clear it or start an import.

Cache Entry Lifetime Strategies

Each cache entry also has its own lifetime. There are two strategies for managing it:

• time-to-live Default strategy. Each entry has a fixed lifetime. The default is 15 minutes.
• time-to-idle The lifetime is renewed on each access. An entry is deleted only after it has not been accessed for the configured duration.

The use of delta updates has no effect on the lifetime of existing cache entries. If a time-to-live value of 3 minutes is used, all requests return the new information no later than 3 minutes after the delta update is sent.