Learn in depth about Process driver implementation.

Process

Because sometimes you just wanna throw some stats in the current process.

This is simple global Hash variable on a process. Grows over time. No expiration. Use with caution.

Configuration

Trifle::Stats.configure do |config|
  config.driver = Trifle::Stats::Driver::Process.new
end

Setup

No setup necessary.

Driver

This is simple driver that stores data within itself. No configuration is necessary. You can initialize one driver and share it throughout your app, or let each thread has its own driver.

irb(main):001:0> driver = Trifle::Stats::Driver::Process.new
=> #<Trifle::Stats::Driver::Process:0x00007fb6e30ba080 @data={}, @separator="::">

Interaction

Once you create instance of a driver, you can use it to set, inc or get your data.

irb(main):002:0> driver.get(keys: [['test', 'now']])
=> [{}]

irb(main):003:0> driver.inc(keys: [['test', 'now']], count: 1, success: 1, error: 0)
=> {"count"=>1, "success"=>1, "error"=>0}
irb(main):004:0> driver.get(keys: [['test', 'now']])
=> [{"count"=>1, "success"=>1, "error"=>0}]

irb(main):005:0> driver.inc(keys: [['test', 'now']], count: 1, success: 0, error: 1, account: { count: 1 })
=> {"count"=>1, "success"=>0, "error"=>1, "account.count"=>1}
irb(main):006:0> driver.get(keys: [['test', 'now']])
=> [{"count"=>2, "success"=>1, "error"=>1, "account"=>{"count"=>1}}]

Performance

You can see data being stored on the driver object itself. Keep that on mind if you are storing lots of data in memory.

irb(main):007:0> driver
=> #<Trifle::Stats::Driver::Process:0x000055e4b5b6cac0 @data={"test::now"=>{"count"=>2, "success"=>1, "error"=>1, "account.count"=>1}}, @separator="::">