StorageRefusedException

A store refused a value as it is, for good: a value it cannot store (a \u0000 PostgreSQL's jsonb does not take, a number out of range), a document beyond its size limit, a document Elasticsearch cannot parse. Writing it again fails the same way, so it is never retried: a subscription parks the aggregate at once.

A backend throws it, with the driver's exception as cause. It is an IllegalArgumentException, the failure of a value an argument carries.