4706ed4238
Currently, the tests don't work in parallel. The tests try to create a data directory in the same path and clash with each other. That should be fixed, but for now, let's at least fix the instructions on how it works now.
1015 B
Zenith
Zenith substitutes PostgreSQL storage layer and redistributes data across a cluster of nodes
Running tests
git clone --recursive https://github.com/libzenith/zenith.git
./pgbuild.sh # builds postgres and installs it to ./tmp_install
cargo test -- --test-threads=1
Source tree layout
/walkeeper:
WAL safekeeper. Written in Rust.
/pageserver:
Page Server. Written in Rust.
Depends on the modified 'postgres' binary for WAL redo.
/integration_tests:
Tests with different combinations of a Postgres compute node, WAL safekeeper and Page Server.
/mgmt-console:
Web UI to launch (modified) Postgres servers, using S3 as the backing store. Written in Python. This is somewhat outdated, as it doesn't use the WAL safekeeper or Page Servers.
/vendor/postgres:
PostgreSQL source tree, with the modifications needed for Zenith.
/vendor/postgres/src/bin/safekeeper:
Extension (safekeeper_proxy) that runs in the compute node, and connects to the WAL safekeepers and streams the WAL