Service Provider Interface for Error Recovery in Data Transmissions
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Solution Overview
Problem
Conventional data transmission methods often require restarting from the beginning after errors occur, leading to inefficient retransmission of large data streams and potential failure to complete transmissions, especially in multi-tenant systems where diverse services and datastores are involved.
Innovation Solution
A multi-tenant system employing a service provider interface with real-time pagination capabilities, allowing data transmission to resume from the current page instead of the beginning, utilizing a common pagination component to buffer and manage data across different services and datastores, minimizing the need for extensive glue layers and ensuring seamless error recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data transmission is restarted from the beginning after an error, then the transmission can be retried, but large amounts of data are retransmitted and time is lost
Solution Approach 1:
The data stream is divided into discrete pages with sequence numbers. When an error occurs, only the failed page needs to be retransmitted rather than the entire data stream. The system maintains state information including the last successfully transmitted page, enabling selective retransmission of only the problematic segment.
2Reliability
If data transmission is restarted from the beginning after an error, then the transmission can be retried, but resource consumption increases
Solution Approach 1:
By segmenting the data into pages and tracking which pages were successfully transmitted, the system avoids wasting computational and network resources on retransmitting already-successful data. The state machine tracks the last successful page boundary, enabling precise resource allocation for error recovery.
3Device complexity
If a uniform access method is used across diverse services, then system complexity is reduced, but services with different data formats and structures cannot be accessed uniformly
Solution Approach 1:
A service provider interface acts as an intermediary layer between the uniform access method and diverse services. This interface translates uniform access requests into service-specific operations, allowing the core system to maintain simplicity while supporting heterogeneous services through standardized interaction patterns.
Solution Approach 2:
The service provider interface is designed to work with multiple different service types and data formats through a universal mechanism. By using pagination and sequence numbering that are format-agnostic, the system achieves both uniform access and broad service compatibility.
Data Source
AI summary
Receive a user request to perform a service request associated with user data. Select, based on the user request, a first service provider interface (SPI) integrated into a first service, the first SPI being configured to obtain and buffer the user data from a datastore associated with the first service into a first buffer of the first SPI. Obtain, by the first SPI, a first page of records of the user data from the datastore. Buffer, by the first SPI, the first page of records in the first buffer of the first SPI as the records of the first page of records are being obtained from the datastore. Provide, by the first SPI, the first page of records to a central controller engine. Store, by the central controller engine, the first page of records. Provide the first page of records to a user.