# File lib/active_record/connection_adapters/abstract/connection_pool.rb, line 74 def initialize(spec) super() @spec = spec # The cache of reserved connections mapped to threads @reserved_connections = {} @queue = new_cond # 'wait_timeout', the backward-compatible key, conflicts with spec key # used by mysql2 for something entirely different, checkout_timeout # preferred to avoid conflict and allow independent values. @timeout = spec.config[:checkout_timeout] || spec.config[:wait_timeout] || 5 # default max pool size to 5 @size = (spec.config[:pool] && spec.config[:pool].to_i) || 5 @connections = [] @automatic_reconnect = true end