spring-boot/me.ahoo.wow.spring.boot/AccessProperties

AccessProperties

How the access attributes are stamped over the histories: by the built-in subscription wow.access, in stamps of a bounded number of streams, remembering the last attributes of a bounded number of aggregates; and by the access walk of each aggregate type, a page of aggregates at a time, at a bounded rate and a bounded share of the time.

Constructors

AccessProperties

constructor()

Properties

capacity

var capacity: Int

The aggregates whose last stamped attributes the subscription remembers, sparing it a read of the stream before.

stampBatch

var stampBatch: Int

The most streams one stamp writes: a long history is stamped in statements of at most this many.

walkBatch

var walkBatch: Int

The most aggregates a page of an access walk stamps; the walk records how far it is after each page, about every five seconds at its pace.

walkRate

var walkRate: Int

The most aggregates an access walk stamps a second, each one's whole history and its snapshot, however large its share.

walkShare

var walkShare: Double

The most of the time an access walk takes, as a share of one connection of the log store's, above 0 and at most 1: after each aggregate it waits so its stamping took at most this share. While the store's writes press it gives way, down to an eighth of it. Raise it in a maintenance window to walk faster.

Functions

options

fun options(): AccessStampOptions

The node's stamping options.