| class BidOfferedJob < Struct.new(:bid_id) | |
| PRIORITY = 1 | |
| def self.enqueue(bid) | |
| Delayed::Job.enqueue new(bid.id), priority: PRIORITY | |
| end | |
| def perform | |
| Mailer.bid_offered(owner, bid).deliver | |
| Activity.create activity_type: 'bid_offered', subject: bid, user: aide |
| class AddIndexToUsersSubscriptionToken < ActiveRecord::Migration | |
| def self.up | |
| change_column_null :users, :subscription_token, false | |
| if ENV['NO_DDL_TRANSACTION'] | |
| execute <<-eosql | |
| CREATE UNIQUE INDEX CONCURRENTLY index_users_on_subscription_token | |
| ON users (subscription_token) | |
| eosql | |
| else |
| %ul | |
| - activities.each do |activity| | |
| %li | |
| .activity{ data: { role: activity.activity_type } } | |
| = render_activity activity |
| curl -o latest.dump `heroku pgbackups:url --app project-production` | |
| pg_restore --verbose --clean --no-acl --no-owner -d project_development latest.dump | |
| rm latest.dump |
The two most common performance symptoms are with throughput or timeouts.
An application's maximum throughput can be measured by how many requests per second it serves; New Relic reports this number as "rpm," which means "requests per minute." Throughput will be limited by how long the average request takes to process and how may servers are available to handle processes. Heroku calls these servers "dynos."
| class BidAcceptedJob < Struct.new(:bid_id) | |
| PRIORITY = 1 | |
| def self.enqueue(bid) | |
| Delayed::Job.enqueue new(bid.id), priority: PRIORITY | |
| end | |
| def perform | |
| Mailer.bid_accepted(aide, bid).deliver | |
| Activity.create activity_type: 'bid_accepted', subject: bid, user: aide |
| class SingleRecipientSmtp < ::Mail::SMTP | |
| def initialize(_) | |
| self.settings = { | |
| address: 'smtp.sendgrid.net', | |
| authentication: :plain, | |
| domain: 'myapp.com', | |
| password: ENV['SENDGRID_PASSWORD'], | |
| port: '587', | |
| user_name: ENV['SENDGRID_USERNAME'] | |
| } |
| #!/bin/sh | |
| # Downloads the Twelve-Factor App guide from http://www.12factor.net/ and | |
| # converts it to plain text for easy reading | |
| # Credit to Dan Choi | |
| twelve-factor() { | |
| base=www.12factor.net | |
| out=twelve-factor.txt | |
| rm $out | |
| wget -r http://$base |
| #!/bin/sh | |
| load-production() { | |
| backup-production | |
| get-backup | restore-from-backup | |
| } | |
| backup-production() { | |
| heroku pgbackups:capture --expire `heroku-production` | |
| } |