In an embodiment, a method comprises receiving a first record comprising one or more first fields from a first source computer; in response to determining that the first record is a first type and a first node is associated with the first type, sending the first record to the first node to be processed; receiving a second record comprising the one or more first fields and one or more second fields from a second source computer; in response to determining that the second record is a second type and a second node is associated with the second type, sending the second record to the second node; in response to determining that the second type is a first subtype of the first type, sending the second record to the first node to be processed, without suspending the first node.