Managing Master Data with webMethods OneData 10.5 | Managing Master Data with webMethods OneData | Using Terracotta with webMethods Products | System Caches Used by the webMethods Product Suite | webMethods Event Routing | eventTypeQName
Contains events that have not yet been sent. Used to ensure guaranteed delivery of those events.
Each event type has a corresponding cache. The name of the cache matches the event type’s unique identifier, in the format {namespace}localName (for example, {}CableboxHealth).
When the hosting JVM is restarted, NERV delivers any events that were not removed from the cache before the JVM was stopped.
The following table shows the number of elements, their size, lifetime, cache type, and if they are searchable or not.
Element Size
Element Lifetime
Cache Type
Up to 1,000 (configurable) and varies depending on the speed of the event bus
Varies from 1 KB to several megabytes depending on use case
Events are removed when they are sent successfully

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