Group communication specifications: a comprehensive study
ACM Computing Surveys (CSUR)
Three-tier replication for FT-CORBA infrastructures
Software—Practice & Experience
ITRA: Inter-Tier Relationship Architecture for End-to-end QoS
The Journal of Supercomputing
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In this paper we share our experience in harnessing group communications for the AS/400 cluster infrastructure. The main focus of the AS/400 cluster is providing high availability and disaster recovery of defined cluster resources. The cluster supports up to 128 nodes, connected via any IP network. Cluster nodes and resources can be dynamically added or removed. Administrative actions or failures trigger automatic cluster reconfigurations.CLUE (Cluster Engine) is the group communication middleware implemented in the OS/400 kernel. It exploits the strong virtual synchrony model. CLUE is unique in the following aspects: It is the first virtually synchronous group communication system incorporated into a cluster solution, and customized to meet cluster needs. It is the only group communication system (GCS) integrated into a commercial operating system kernel. CLUE's special features (e.g., Flexible Group Member) can be relevant to other group communication systems.