SystemicProperties

When a subscription pauses its partition on a systemic failure: at once on a failure classified systemic, or when enough different aggregates failed within a window with no handling succeeding since. While paused, one attempt at a time probes until a handling succeeds. A handler's failures are classified by its @Retry(recoverable, unrecoverable), then the FailureClassifier beans, then the modules' on the classpath, then the runtime's own.