From cf521c95761540f273804d23a1150dbb0af4e63b Mon Sep 17 00:00:00 2001 From: Yorick Peterse Date: Wed, 22 Feb 2017 15:43:01 +0100 Subject: [PATCH] Allow setting of a custom connection pool host This allows you to set a custom host when calling Gitlab::Database.create_connection_pool. This is necessary for load balancing as in this case we want to inherit all settings except for the hostname. --- lib/gitlab/database.rb | 7 ++++++- spec/lib/gitlab/database_spec.rb | 21 ++++++++++++++++++--- 2 files changed, 24 insertions(+), 4 deletions(-) diff --git a/lib/gitlab/database.rb b/lib/gitlab/database.rb index a47d7e98a62..d160cadc2d0 100644 --- a/lib/gitlab/database.rb +++ b/lib/gitlab/database.rb @@ -79,11 +79,16 @@ module Gitlab end end - def self.create_connection_pool(pool_size) + # pool_size - The size of the DB pool. + # host - An optional host name to use instead of the default one. + def self.create_connection_pool(pool_size, host = nil) # See activerecord-4.2.7.1/lib/active_record/connection_adapters/connection_specification.rb env = Rails.env original_config = ActiveRecord::Base.configurations + env_config = original_config[env].merge('pool' => pool_size) + env_config['host'] = host if host + config = original_config.merge(env => env_config) spec = diff --git a/spec/lib/gitlab/database_spec.rb b/spec/lib/gitlab/database_spec.rb index f01c42aff91..edd01d032c8 100644 --- a/spec/lib/gitlab/database_spec.rb +++ b/spec/lib/gitlab/database_spec.rb @@ -119,9 +119,24 @@ describe Gitlab::Database, lib: true do it 'creates a new connection pool with specific pool size' do pool = described_class.create_connection_pool(5) - expect(pool) - .to be_kind_of(ActiveRecord::ConnectionAdapters::ConnectionPool) - expect(pool.spec.config[:pool]).to eq(5) + begin + expect(pool) + .to be_kind_of(ActiveRecord::ConnectionAdapters::ConnectionPool) + + expect(pool.spec.config[:pool]).to eq(5) + ensure + pool.disconnect! + end + end + + it 'allows setting of a custom hostname' do + pool = described_class.create_connection_pool(5, '127.0.0.1') + + begin + expect(pool.spec.config[:host]).to eq('127.0.0.1') + ensure + pool.disconnect! + end end end