pgagroal
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agroal
High-performance connection pool for PostgreSQL
pgagroal
pgagroal is a high-performance protocol-native connection pool for PostgreSQL.
Pronounced: p-g-a-gro-al, named after Agroal in Portugal.
Features
- High performance
- Connection pool
- Limit connections for users and databases
- Prefill support
- Remove idle connections
- Perform connection validation
- Enable / disable database access
- Graceful / fast shutdown
- Prometheus support
- Grafana 8 dashboard
- Remote management
- Authentication query support
- Failover support
- Transport Layer Security (TLS) v1.2+ support
- Daemon mode
- User vault
See Getting Started on how to get started with pgagroal.
See Configuration on how to configure pgagroal.
See Performance for a performance run.
Overview
pgagroal makes use of
- Process model
- Shared memory model across processes
- libev for fast network interactions
- Atomic operations are used to keep track of state
- The PostgreSQL native protocol v3 for its communication
pgagroal will work with any PostgreSQL compliant driver, for example
pgjdbc, Npgsql and pq.
See Architecture for the architecture of pgagroal.
Tested platforms
Compiling the source
pgagroal requires
dnf install git gcc cmake make libev libev-devel openssl openssl-devel systemd systemd-devel python3-docutils
Alternative clang 8+ can be used.
Release build
The following commands will install pgagroal in the /usr/local hierarchy
and run the default configuration.
git clone https://github.com/agroal/pgagroal.git
cd pgagroal
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/usr/local ..
make
sudo make install
/usr/local/bin/pgagroal -c /usr/local/etc/pgagroal/pgagroal.conf -a /usr/local/etc/pgagroal/pgagroal_hba.conf
See RPM for how to build a RPM of pgagroal.
Debug build
The following commands will create a DEBUG version of pgagroal.
git clone https://github.com/agroal/pgagroal.git
cd pgagroal
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Debug ..
make
cd src
cp ../../doc/etc/*.conf .
./pgagroal -c pgagroal.conf -a pgagroal_hba.conf
Remember to set the log_level configuration option to debug5.
Contributing
Contributions to pgagroal are managed on GitHub.com
Contributions are most welcome !
Please, consult our Code of Conduct policies for interacting in our community.
Consider giving the project a star on GitHub if you find it useful. And, feel free to follow the project on Twitter as well.
agroal