Construction and application of LHAASO data processing platform

Purpose: The LHAASO project collects trillions of cosmic ray events every year, generating about 10 PB of raw data annually, which brings big challenges for data processing platform. Method: The LHAASO data processing platform is built to handle such a large amount of data, which is composed of some subsystems such as data transfer, data storage, high throughput computing and metadata management. Results and conclusions: The platform was under construction since 2018 and has been working well since 2021. In this paper, the details of the design, implementation and performance of the data processing platform are presented.