100-Year-Old PSBC: Migrating Mission-Critical Systems to the Cloud - TAKE A CLOUD LEAP

Huawei Cloud Stack, GaussDB

100-Year-Old PSBC
Migrating Mission-Critical
Systems to the Cloud

Mission-critical service systems are the heart and soul of a bank. They represent the bank's technological strength.

In 2022, Postal Savings Bank of China (PSBC) deployed a next-generation mission-critical distributed system for personal services.

In 2023, PSBC & Huawei Cloud GaussDB scaled the unified query system to be able to hold over 600 TB of data.

Thanks to this next-generation mission-critical distributed system for personal services.
We are now able to process 2 billion transactions per day and 67,000 transactions per second during peak hours for 650 million individual customers and more than 40,000 outlets. Transaction processing is 40% faster than before.
The average online transaction processing time was reduced from 93 ms to 65 ms, 30% less time than the legacy system needed. The batch processing time was shortened from 4.5 hours to 3.
This has proven that Huawei Cloud GaussDB can ensure security and reliability of our mission-critical systems.

-- Niu Xinzhuang,
Chief Information Officer of PSBC

The PSBC legacy system for personal services was built in 2014.

The system had hundreds of terabytes of historical data and hundreds of billions of data records in a single table. During peak hours, it had to process tens of thousands of concurrent requests. In the face of the massive amounts of data to be processed, the legacy system became overwhelmed. The storage, concurrency, data security, and performance, all struggled to keep up. PSBC urgently needed to develop a new system, one with a distributed architecture.

In 2019, PSBC worked with Huawei Cloud to plan and build a next-generation mission-critical distributed system for personal services.

PSBC has been using the new system since April 2022. More than 600 million individual customers have been migrated online to the new system, which has smoothly replaced the old one.

Able to hold data over
600TB
number of users served by mobile banking alone
3.44
million
Peak TPS
130,000
TPS

In 2023, PSBC and Huawei Cloud pushed their cooperation forward by using GaussDB to rapidly scale PSBC's unified query system to carry over 600 TB of data accumulated in the past 10 years. 207 new nodes were deployed for the system with intra-city, active-active DR and remote DR supported. This database cluster is the largest in the finance industry. The number of users served by mobile banking alone reached 344 million with a peak TPS of 130,000.

This is the first time that a large bank adopted both enterprise-level business modeling and a distributed microservice architecture. The system is based on Huawei Cloud Stack and a GaussDB database.

The new system is a key financial technology for China's banking industry, completely replacing their traditional legacy database system.

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