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Advances, Systems and Applications

Table 1 Variables of the automaton modelling the self-sizing behaviours

From: Discrete control for ensuring consistency between multiple autonomic managers

Variable

Type

Description

delay

Input

Upsizing operations are suspended.

overload

Input

An overload occurs in the system.

underload

Input

An underload occurs in the system.

min_node

Input

The minimum number of replicas is reached

max_node

Input

The maximum number of replicas is reached.

node_added

Input

The completion of an upsizing operation.

adding

Output

The manager is waiting for the completion of an upsizing operation.

add

Output

The manager is launching an upsizingoperation. Its value depends on the value of delay and overload.

remove

Output

The manager is launching the downsizing operation. Its value depends on the value of underload.

  1. Table gives a description of the input and output variables of the automaton modelling the self-sizing behaviours.