Offload to disk | Limitation on invalidation when server is stopped

FlushToDiskOnStop

Cache entries can also be written to disk when the server is stopped.

There are two ways to achieve this:

• In the console, enable the option...

  Flush to disk

• Set the custom JVM property...

  com.ibm.ws.cache.flushToDiskOnStop true

When this custom property is set to true, even if Flush to disk is not selected in the administrative console, upon a server stop, it will flush in-memory cache to disk and also retain the over flowed offloaded-to-disk cache.

To verify whether FlushToDiskOnStop is enabled or disabled, check the SystemOut.log on server startup for this message:

Cache I DYNA0061I: Flush to disk on stop is enabled for cache name "baseCache".

...or...

Cache I DYNA0061I: Flush to disk on stop is disabled for cache name "baseCache".

If you do not want to retain any cache entries (in-memory or on disk) when the server stops, ensure the following:

• The Flush to disk option is not selected in the Dynamic Cache Service Configuration page.

• The custom JVM property com.ibm.ws.cache.flushToDiskOnStop is either not present or is set to false in the JVM Custom Properties Configuration page.