Data Cache

📄️ Data Cache

This topic describes the working principles of Data Cache and how to enable Data Cache to improve query performance on external data. From v3.3.0, Data Cache is enabled by default.

📄️ Data cache warmup

Some data lake analytics and shared-data cluster scenarios have high performance requirements for queries, such as BI reports and proof of concept (PoC) performance testing. Loading remote data into local data cache can avoid the need to fetch the same data multiple times, significantly speeding up query execution and minimizing resource usage.

📄️ Data Cache observability

In earlier versions, there are no rich metrics or efficient methods to monitor the performance, usage, and health of Data Cache.