gh-ost
hub
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gh-ost | hub | |
---|---|---|
32 | 23 | |
11,997 | 22,687 | |
1.0% | 0.1% | |
7.4 | 4.2 | |
12 days ago | 3 months ago | |
Go | Go | |
MIT 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.
gh-ost
- "At GitHub we do not use foreign keys, ever, anywhere"
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How Modern SQL Databases Are Changing Web Development - #3 Better Developer Experience
I’ve been through multiple incidents where everything worked fine in the testing environment but ended up locking the production database for minutes when deployed. A category of open-source tools called OSC (Online Schema Change) exists to mitigate such pain, like gh-ost used by GitHub and OSC used by Meta. They work by creating a set of "ghost tables" to apply the migrations, copy over old data from the original tables, and catch up with new writes simultaneously. When all old data is migrated, you can trigger a cutover to make the "ghost tables" production. Check the post below for a great introduction and comparison:
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We migrated to SQL. Our biggest learning? Don't use Prisma
Sounds like it's basically explained in the gh-ost readme https://github.com/github/gh-ost#how
I think it amounts to "use views to decouple access to the table with a fixed interface" and "use triggers for migrating data between tables"
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Ask HN: Is PostgreSQL better than MySQL?
Gh-ost is the new hotness. Simple to use and lots of great features: https://github.com/github/gh-ost
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My Green/blue AWS db deployment strategy for avoiding data loss due to table locks
If the performance of the db is a concern during migrations (locking, high cpu consumption for large writes) there are tools that can help and do similiar to what your describing but with the benefit that they are battle tested tools. This one spring to mind https://github.com/github/gh-ost there are other options as well and its worth reading the trade off docs
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Changing column from longtext to mediumtext taking over 2 hours
Not sure which version of MySQL you're using, but one approach would be to use a tool like pt-online-schema-change (from Percona) or g-host -- which will create a duplicate table and then swap it in place of the original table. It's a safer approach when operating in production environments. Here's a good comparison of the tools many people use https://planetscale.com/docs/learn/online-schema-change-tools-comparison
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Ask HN: Do you use foreign Keys in Relational Databases
No, especially on large tables with billions of records. They make online schema changes impossible. More details: https://github.com/github/gh-ost/issues/331#issuecomment-266...
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Migrating a production database without any downtime
Tip #4: Consider slow-running migrations. Some tables can be so large that the traditional migration way is simply not a viable option for them. In such cases, you can consider embedding the data migration code right into your application, or use a special utility like GitHub's online schema migration for MySQL. A slow-running migration can work in production for days or even weeks. It gradually converts the data by small chunks, so you can carefully balance the load on the database while making sure that it doesn't cause slowness or downtime.
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How do you handle RDS schema migrations?
GitHub gh-ost
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Changing Tires at 100mph: A Guide to Zero Downtime Migrations
Actually I never tried but I was scared by the small print of GH not using RDS themselves [1] and Ghost relying on lower-level features that might be not easily available in RDS. Also I had the impression you have to setup a normal non-RDS replica attached to your RDS master?
[1] https://github.com/github/gh-ost/blob/master/doc/rds.md
hub
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GitHub Discussion about the recent feed changes becomes 3rd most upvoted ever
Use hub here via CLI and forget the gui https://hub.github.com/
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Pull request Best Practices
Try automating the PR process as much as possible. Make use of tools like hub CLI for speeding up the pull request process. Code quality tools can help you automate the due diligence for coding standards and conventions, and test automation tools can assist in bug discovery, and identifying security vulnerabilities.
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Script to iterate a local folder structure and push remote SCM?
You can extend this: https://github.com/github/hub
- Problem with Docker Hub and submodules
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[Media] I made a Rust CLI game that tests how fast you can guess the language of a code block!
parse_git_branch() { # Speed up opening up a new terminal tab by not # checking `$HOME` ...which can't be a repo anyway # # For the heck of it, micro-optimize this too: # time (repeat 1000000 { [ "$PWD" = "$HOME" ] } ) == ~4.2s # time (repeat 1000000 { [[ "$PWD" == "$HOME" ]] } ) == ~1.4s [[ "$PWD" == "$HOME" ]] && return # Fastest known way to check the current branch name # (Uses `command` to bypass wrappers like https://hub.github.com/) ref="$(command git symbolic-ref --short HEAD 2> /dev/null)" || return echo " [$ref]" }
- Mais de 10 coisas para fazer antes de solicitar revisão do seu Pull Request
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Gitea – a painless self-hosted Git service
Which will create a new remote with that name (otherwise origin will be used).
It is also less typing.
[1]: https://github.com/github/hub
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My Termial Aliases
I alias git to use HUB from GitHub
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Noob question: Up until now I've always started with creating a repository on github and cloning it to my pc. This time I've already started a project with vs code and am not sure how to get it to github. Do I just use 'Import a Repository' on github?
If you also install Hub https://github.com/github/hub it gives you a git create command, it also has a set of really useful additional CLI utilities.
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My current Indie Hacking toolkit
SCM: Git + Hub (https://github.com/github/hub)
What are some alternatives?
pg-online-schema-change - Easy CLI tool for making zero downtime schema changes and backfills in PostgreSQL [Moved to: https://github.com/shayonj/pg-osc]
gron - gron, Cron Jobs in Go.
doctrine-test-bundle - Symfony bundle to isolate your app's doctrine database tests and improve the test performance
resty - Simple HTTP and REST client library for Go
squawk - 🐘 linter for PostgreSQL, focused on migrations
ngrok - Unified ingress for developers
pg_squeeze - A PostgreSQL extension for automatic bloat cleanup
goreporter - A Golang tool that does static analysis, unit testing, code review and generate code quality report.
Jenkins - Jenkins automation server
hystrix-go - Netflix's Hystrix latency and fault tolerance library, for Go
reshape - An easy-to-use, zero-downtime schema migration tool for Postgres
GJSON - Get JSON values quickly - JSON parser for Go