On this page

Background

Show all

Help Center/ GaussDB(DWS)/ Technical White Paper/ GaussDB(DWS) Core Technologies/ Data Distribution in a Distributed System

Data Distribution in a Distributed System

Updated on 2023-03-30 GMT+08:00

View PDF

Background

DWS uses a two-layer data layout mechanism achieve high-performance query and import of PB-level data. At the first layer, users can specify a data distribution policy (hash distribution or replication distribution) when creating a table. When data is written to the system, the system determines the node where the data is stored based on the corresponding distribution policy. At the second layer, the node partitions its stored data according to partitioning rules.

Parent topic: GaussDB(DWS) Core Technologies

Previous topic: Shared-Nothing Architecture

Next topic: Distributed Data Storage

Feedback

Was this page helpful?

Helpful Not helpful

Provide feedback

Thank you very much for your feedback. We will continue working to improve the documentation.

The system is busy. Please try again later.

Which of the following issues have you encountered?

Content is inconsistent with the product UI

Unclear descriptions

Lack of examples or code

Incorrect steps

Can't find what I need

Lack of best practices

Feedback (optional)

0/500

Select at least one type of issue, and enter your comments or suggestions.

Enter a maximum of 500 characters.

Submit Cancel

Feedback

Feedback

Feedback

0/500

Selected Content

Submit selected content with the feedback