In this article, we explore the optimization techniques used to enhance the compression ratio and memory usage of Apache Arrow in the OTel Arrow protocol. We discuss the benefits of optimizing schemas in terms of memory usage and the various approaches to handle recursive schema definitions. We also highlight the importance of sorting in enhancing the compression ratio and provide a comparative analysis of compression ratios between the OTel Arrow protocol and the OTLP protocol. Overall, these techniques lead to improved efficiency in compression ratio, memory usage, and processing speed. The article concludes by mentioning the potential for introducing additional optimizations in the future.
https://arrow.apache.org/blog/2023/06/26/our-journey-at-f5-with-apache-arrow-part-2/