Core Concept

• Shadow DB Switch
• Production DB
• Shadow DB
• Shadow Table
• Shadow Algorithm
• Default Shadow Algorithm

Shadow DB Switch

Shadow DB switch.

Pressure testing is a requirement for a specific period of time, turned on when needed.

Production DB

The database used for production data.

Shadow DB

The Shadow database for Pressure testing data isolation.

Shadow Table

Pressure testing data related tables.

The shadow table has the same table structure in the production DB and shadow DB.

Shadow Algorithm

Provides 2 types of shadow algorithms.

Since the shadow algorithm is closely related to business, no default shadow algorithm provided.

• Column shadow algorithm

It is suitable for scenarios where the value of a field involved in the executed SQL satisfies certain matching conditions in the testing.

• Note shadow algorithm

It is suitable for scenarios where the field values involved in executing SQL cannot meet certain matching conditions in the testing.

Default Shadow Algorithm

Default shadow algorithm, optional item. The default matching algorithm for table that is not configured with the shadow algorithm.

Note: The default shadow algorithm only supports note shadow algorithm.