departure
ghost_adapter
| departure | ghost_adapter | |
|---|---|---|
| 1 | 2 | |
| 134 | 18 | |
| 0.0% | - | |
| 8.0 | 1.5 | |
| 2 months ago | 7 days ago | |
| Ruby | Ruby | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
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.
departure
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Changing Tires at 100mph: A Guide to Zero Downtime Migrations
At least for Rails there are several gems available (ie https://github.com/WeTransfer/ghost_adapter or https://github.com/departurerb/departure) that seamlessly hook into the existing migration system and will run all eligible migrations through gh-ost or pt-osc as needed. You're right that it's not free but it isn't all that far off either.
That said, online schema migrations are a specialized tool designed for very big tables that take hours to run an ALTER TABLE on. If all your tables are small enough that alterations take less than a second or so, don't bother and just block the table for a bit. It's fine.
ghost_adapter
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Changing Tires at 100mph: A Guide to Zero Downtime Migrations
At least for Rails there are several gems available (ie https://github.com/WeTransfer/ghost_adapter or https://github.com/departurerb/departure) that seamlessly hook into the existing migration system and will run all eligible migrations through gh-ost or pt-osc as needed. You're right that it's not free but it isn't all that far off either.
That said, online schema migrations are a specialized tool designed for very big tables that take hours to run an ALTER TABLE on. If all your tables are small enough that alterations take less than a second or so, don't bother and just block the table for a bit. It's fine.
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Database... or Goose?
https://github.com/WeTransfer/ghost_adapter integrates gh-ost with activerecord and the departure gem does the same but for pt-osc.
What are some alternatives?
reshape - An easy-to-use, zero-downtime schema migration tool for Postgres
strong_migrations - Catch unsafe migrations in development
data-migrate - Migrate and update data alongside your database structure.
safe-pg-migrations - Make your PostgreSQL migrations safe