Exar DB

An event store with streaming support, it uses flat-file based collections.

Documentation

Installation

Install Cargo, then run:

cargo install exar-db

Starting the database

Simply run exar-db.

Configuring the database

The database can be configured using a TOML configuration file, example below:

toml log4rs_path = "/path/to/log4rs.toml" [database] logs_path = "~/exar-db/data" scanners = { nr_of_scanners = 2, sleep_time_in_ms = 10 } [database.collections.my-collection] routing_strategy = "Random" scanners = { nr_of_scanners = 4, sleep_time_in_ms = 5 } [server] host = "127.0.0.1" port = 38580 username = "my-username" password = "my-secret"

Then run Exar DB by specifying the config file location: exar-db --config=/path/to/config.toml.

For more information about the database and server configuration sections, check the documentation about DatabaseConfig and ServerConfig.

Logging

Logging can be configured using a log4rs config file in TOML format, example below:

```toml [appenders.console] kind = "console"

[appenders.console.encoder] pattern = "[{d(%+)(local)}] [{h({l})}] [{t}] {m}{n}"

[appenders.file] kind = "file" path = "exar-db.log"

[appenders.file.encoder] pattern = "[{d(%+)(local)}] [{h({l})}] [{t}] {m}{n}"

[root] level = "info" appenders = ["console", "file"] ```