Large Hadron Migrator
Database Cleaner
Our great sponsors
Large Hadron Migrator | Database Cleaner | |
---|---|---|
3 | 3 | |
1,816 | 2,913 | |
0.5% | 0.2% | |
0.0 | 0.0 | |
8 months ago | 4 months ago | |
Ruby | Ruby | |
BSD 3-clause "New" or "Revised" License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Large Hadron Migrator
-
GitHub downtime root cause analysis
No you didn't. They're doing what is often referred as "online schema change" using https://github.com/github/gh-ost (but the concept is the same than percona's pt-online-schema-change, or https://github.com/soundcloud/lhm.
-
Database... or Goose?
Is there anything similar for MySQL? There is https://github.com/soundcloud/lhm but it's pretty much outdated nowadays
-
Do you use migrations for data manipulations? What are the pro's and con's ?
I may do it from the console or a task if I wanted to modify a large number of records, e.g. something in my Users table. I think you need a sense of how long the update will take - I'm not sure if there's any issue with migrations timing out or such like. If I modify my Users schema it takes 5 minutes or so as it has to make a copy of the table and swap it in and that works fine - https://github.com/soundcloud/lhm
Database Cleaner
-
How a big application is usually tested regarding to its database data persistence? Also, tip on starting tests on existing codebase.
i'll introduce the gem https://github.com/DatabaseCleaner/database_cleaner.
- Como configurar ambiente de testes em Ruby on Rails com RSpec
-
10 Signs of a good Ruby on Rails Developer
If your are using gems like faker , factory_bot_rails and database_cleaner to create and clean test records then creating unnecessary records can cost you time and speed.
What are some alternatives?
Squasher - Squasher - squash your old migrations in a single command
PgHero - A performance dashboard for Postgres
Lol DBA - lol_dba is a small package of rake tasks that scan your application models and displays a list of columns that probably should be indexed. Also, it can generate .sql migration scripts.
Seed dump - Rails 4/5 task to dump your data to db/seeds.rb
Foreigner - Adds foreign key helpers to migrations and correctly dumps foreign keys to schema.rb
Seed Fu - Advanced seed data handling for Rails, combining the best practices of several methods together.
BatchLoader - :zap: Powerful tool for avoiding N+1 DB or HTTP queries
SecondBase - Seamless second database integration for Rails.
Seedbank - Seedbank gives your seed data a little structure. Create seeds for each environment, share seeds between environments and specify dependencies to load your seeds in order. All nicely integrated with simple rake tasks.