Server Data Order Assurance via Routing Table Version Synchronization
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Solution Overview
Problem
In complex event processing systems, data order changes during the movement of processing elements can alter the meaning of events, leading to inefficiencies and overhead due to the need to stop and restart data processing, especially when multiple processing elements are moved.
Innovation Solution
A server device with a processor that manages data transmission by stopping data transmission to nodes for predetermined periods, acquiring and comparing routing table versions, and updating old versions, allowing for consistent data processing without stopping data processing every time a query is moved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If data transmission is stopped frequently to maintain data order during processing element movement, then data order accuracy is improved, but processing efficiency deteriorates
Solution Approach 1:
The system performs preliminary actions by notifying the data transmission source of processing element movement before the actual movement occurs. This allows the transmission source to proactively update its routing information, ensuring data order accuracy without requiring frequent complete stops of data processing.
Solution Approach 2:
The system dynamically adjusts data transmission behavior based on the movement status of processing elements. Instead of static frequent stops, the system implements dynamic control where data transmission continues uninterrupted while routing updates are performed in the background, maintaining both data order and processing efficiency.
2Manufacturing precision
If data transmission is stopped every time a processing element is moved, then data order is maintained, but system adaptability deteriorates
Solution Approach 1:
The system sends preliminary movement notification to the data transmission source before the processing element actually moves. This advance notice allows the system to maintain data order through proactive routing updates rather than reactive stops, thereby preserving system adaptability and continuous operation.
Solution Approach 2:
The system maintains continuous data transmission and processing operations while handling processing element movements. By eliminating unnecessary stops and using background routing updates, the system ensures continuous useful action is performed, enhancing both data order maintenance and system adaptability.
3Productivity
If multiple processing elements are moved simultaneously, then resource utilization is improved, but data order control becomes more complex
Solution Approach 1:
The system segments the data transmission control by establishing separate notification mechanisms for different data transmission sources. Each source receives individual movement notifications and performs independent routing updates, simplifying the overall control complexity while enabling simultaneous movement of multiple processing elements.
Solution Approach 2:
The data transmission sources autonomously update their own routing information upon receiving movement notifications. This self-service mechanism eliminates the need for centralized complex coordination, allowing multiple processing elements to be moved simultaneously while maintaining manageable data order control.
Data Source
AI summary
A stop unit stops transmitting data to a plurality of nodes for every predetermined period. An acquisition unit acquires versions of routing tables, which are updated in accordance with movement of a query, from the plurality of nodes when the transmission of the data is stopped. A comparison unit compares the versions of the routing tables of the plurality of nodes that are acquired. When there is a node in which the routing table of an old version is stored as a result of the comparison, an update unit updates the routing table of the node.