Change mirror_max_delay default value migration

db/migrate/20170719182937_convert_max_mirror_delay_to_minutes_in_application_settings.rb

+class ConvertMaxMirrorDelayToMinutesInApplicationSettings < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    change_column_default :application_settings, :mirror_max_delay, 300
+    execute 'UPDATE application_settings SET mirror_max_delay = 300'
+  end
+
+  def down
+    change_column_default :application_settings, :mirror_max_delay, 5
+    execute 'UPDATE application_settings SET mirror_max_delay = 5'
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170717150329) do
+ActiveRecord::Schema.define(version: 20170719182937) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -137,7 +137,7 @@ ActiveRecord::Schema.define(version: 20170717150329) do
     t.string "clientside_sentry_dsn"
     t.boolean "prometheus_metrics_enabled", default: false, null: false
     t.boolean "check_namespace_plan", default: false, null: false
-    t.integer "mirror_max_delay", default: 5, null: false
+    t.integer "mirror_max_delay", default: 300, null: false
     t.integer "mirror_max_capacity", default: 100, null: false
     t.integer "mirror_capacity_threshold", default: 50, null: false
     t.boolean "authorized_keys_enabled", default: true, null: false