From 35b6898f7cb5223e1de4edc1b4539e05dfd83d41 Mon Sep 17 00:00:00 2001 From: Pavel Date: Wed, 9 Nov 2016 01:10:16 +0800 Subject: Add ActiveRecord::Base.connection_pool.stat --- .../connection_adapters/abstract/connection_pool.rb | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'activerecord/lib/active_record/connection_adapters') diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb index e9ecb78e27..9727d63883 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -581,6 +581,24 @@ module ActiveRecord @available.num_waiting end + # Return connection pool's usage statistic + # Example: + # + # ActiveRecord::Base.connection_pool.stat # => { size: 15, connections: 1, busy: 1, dead: 0, idle: 0, waiting: 0, checkout_timeout: 5 } + def stat + synchronize do + { + size: size, + connections: @connections.size, + busy: @connections.count { |c| c.in_use? && c.owner.alive? }, + dead: @connections.count { |c| c.in_use? && !c.owner.alive? }, + idle: @connections.count { |c| !c.in_use? }, + waiting: num_waiting_in_queue, + checkout_timeout: checkout_timeout + } + end + end + private #-- # this is unfortunately not concurrent -- cgit v1.2.3