Embedded Component Configuration Replication via Portable Archives
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Solution Overview
Problem
In some application server environments, embedded components face challenges in replicating their configuration across clustered instances due to proprietary synchronization interfaces, leading to lock-in with the host server or lack of synchronization interfaces, which restricts fault-tolerance and throughput.
Innovation Solution
A system and method for cluster-wide replication of embedded component configuration, where configuration changes are packaged as command payloads within a configuration archive, distributed, and invoked on target instances to synchronize configurations, leveraging the host's application deployment synchronization functionality, enabling portable replication across different Java EE application servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If embedded components use proprietary configuration synchronization interfaces provided by the host application server, then configuration replication across clustered instances is achieved, but the embedded component becomes locked-in to the specific host server and cannot port to other servers
Solution Approach 1:
The patent introduces a portable configuration archive as an intermediary format that mediates between the embedded component and the host server. Instead of directly using the host's proprietary synchronization interface, the component exports its configuration to this neutral archive format, which can then be imported and applied on any compliant host server, thus enabling portability while maintaining replication capability
Solution Approach 2:
The patent creates a copy of the configuration in a portable archive format rather than relying on the original host-specific configuration format. This configuration archive copy can be independently transferred and applied to different host servers, decoupling the embedded component from the specific host server it was originally deployed on
2Adaptability or versatility
If the host application server does not provide synchronization interfaces for configuration replication, then the embedded component maintains independence from host-specific mechanisms, but configuration replication across clustered instances cannot be achieved
Solution Approach 1:
The embedded component performs self-service by independently packaging its own configuration into a portable archive format without requiring the host server to provide special synchronization interfaces. The component uses its own resources and capabilities to create the configuration archive, which can then be distributed and applied across cluster instances using standard deployment mechanisms
Solution Approach 2:
The portable configuration archive format serves multiple functions: it acts as a configuration storage container, a transfer medium, and an application template. This universal format can be used across different host servers and cluster instances without requiring host-specific synchronization interfaces, enabling replication in environments where the host does not provide specialized support
3Productivity
If configuration changes are replicated to all clustered instances, then fault-tolerance and throughput are improved, but the system complexity increases due to handling cluster reconfigurations and offline nodes
Solution Approach 1:
The patent implements preliminary action by packaging the configuration changes into a portable archive format before distribution to cluster instances. This pre-packaged configuration can be applied to any instance regardless of its current state, simplifying the replication process even in complex scenarios involving reconfigurations or offline nodes
Solution Approach 2:
The patent segments the configuration replication process into distinct phases: configuration packaging by the embedded component, distribution through the portable archive, and local application at target instances. This segmentation isolates the complexity of cluster management from the core replication mechanism, allowing straightforward implementation even in dynamic cluster environments
Data Source
AI summary
A system and method for cluster-wide replication of embedded component configuration. In accordance with an embodiment, the system comprises an application server acting as a host and including one or more embedded components. When the configuration of an embedded component is modified from its original configuration, a configuration replication logic and deployment interface determines one or more appropriate configuration commands which, if executed at a target application server instance, for example, at another application server instance within a cluster, would result in an equivalent change in the state of an embedded component at that instance. The configuration commands are packaged within a configuration archive as one or more command payloads, which are distributed to target instances, and invoked on an embedded component thereon, to synchronize the configuration of the embedded components at the target instances with that of the host.