上海的陆家嘴

By [Your Name], Senior Journalist and Editor

Pinterest, the popular visual discovery platform, hassignificantly enhanced the efficiency and resource utilization of its in-house time series database, Goku. These recent updates, detailed in a recent blog post by the Goku team,focus on optimizing storage efficiency and resource usage without compromising service quality.

Goku, developed by Pinterest, was initially created to address specific limitations of OpenTSDB. The latest advancements center around two key features: metric namespaces and top-level write-intensive metrics, both aimed at reducing the amount of data stored in Goku.

Metric Namespaces: Organizing Data for Efficiency

Metric namespaces provide a structured approach to organizing metric configurations, enabling efficient data management. This feature allows for grouping related metrics together, simplifying data access and management.

Top-Level Write-Intensive Metrics: Reducing Unnecessary Data

The Goku team has implemented a system to identify and optimize top-level write-intensive metrics. This system effectively prevents unnecessary data writes, resulting in a remarkable 37% reduction in the volume of time-series data stored.

Architectural Optimizations for Cost Reduction

Beyond these new features, Pinterest hasimplemented a series of architectural optimizations to further reduce infrastructure costs. These include:

  • Improved Metric Name Indexing: This optimization has reduced memory usage per host from 12GB to 3GB.
  • Dictionary Encoding in Goku Compactor: This technique effectively addresses memory scarcity issues, allowing for the use ofless expensive hardware.
  • Optimized Memory Allocation Strategy: Pinterest has addressed internal fragmentation and memory over-allocation issues, leading to significant memory savings. For instance, optimizations to the folly::IOBuf structure have resulted in a reduction of 8 to 11GB of memory usage per host.

Time Series Compression: A Key to Efficiency

Time series compression algorithms are crucial for efficiently storing and processing large volumes of time-stamped data. These algorithms identify patterns and redundancies in data, reducing data size and enabling faster query processing and lower storage costs.

Pinterest, like other companies such as TimescaleDBand Meta, has leveraged techniques like incremental encoding, incremental delta encoding, and XOR-based compression to achieve significant storage efficiency improvements.

Conclusion

Pinterest’s recent enhancements to Goku demonstrate a commitment to optimizing resource utilization and efficiency. These advancements, including metric namespaces, top-level write-intensive metric optimization, and architecturalimprovements, have significantly reduced data storage needs and infrastructure costs. The adoption of time series compression algorithms further contributes to efficient data management and processing. As Pinterest continues to grow, these optimizations will play a critical role in ensuring scalability and cost-effectiveness.

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