- Design
General concept oberview. wiki link. This repo implements Snapshot Sharing mechnism. Protocol description. README.protocol Presentation
- Installing
- patch postgres
- install extension
- configure two postgreses
- run dtmd
- run postgreses
1b) Automatic provisioning
- For a wide deploy we use ansible. Layouts/Farms. More details later.
- Usage
now you can use global tx between this two nodes
table with two columns
example- Consistency testing
To ensure consistency we use simple bank test: perform a lot of simultaneous transfers between accounts on different servers, while constantly checking total amount of money on all accounts.
go run ...
also there is the test for measuring select performance.
- Using with fdw.
patch go run ...
- Using with pg_shard
checkout repo go run ...
- Results
Some graphs