The Impact of Service Semantics on the Consistent Recovery in SOA

Abstract

This paper addresses a problem of consistent recovery of SOA processing. So far, the recovered state was considered as consistent if all events that have occurred before the failure were transparently recovered. However, providing such a strict consistency introduces a high performance overhead. Thus, we propose the semantic-based classification of services that enables to slack the notion of consistent recovered state from the viewpoint of services. We also present the extension of RESERVE rollback-recovery protocol that guarantees the proposed relaxed recovery consistency.

On Monitoring and Self-Adaptation to Dynamic Nature of SOA in ReServE Environment

“…In this Section, the concept and the general architecture of ReServE environment is presented. The detailed description of ReServE has already been put forward in [4,12,14], and it is summarized here in order to make a paper self-contained.…”

“…Next, the RM U associated with the chosen value is elected as a default RM U (lines [21][22][23][24][25][26]. After the registration confirmation, the client starts its processing, and acts correspondingly to the description presented in section 4.3, and in the paper [12](lines 27-38). In case of a negative response, the client sends a registration request to RM U , which metric value directly precedes the previously selected one.…”

Maintaining Replicated Recovery Log for RESTful Services

“…To ensure this, in ReServE the communication between clients and services is intercept and saved in the message log. In the first versions of ReServE service, the message log was assumed to be kept in the stable storage which was able to survive all failures (Brzeziński et al, 2012(Brzeziński et al, , 2014Hołenko, Kobusińska, Wawrzyniak, & Zierhoffer, 2014). However, to enhance the resilience of ReServE, and to make its assumptions more realistic, the replication of log with recovery information in the context of this service was proposed (Kobusińska & Wawrzyniak, 2015).…”