Canvas LMS
gh-ost
Our great sponsors
Canvas LMS | gh-ost | |
---|---|---|
32 | 32 | |
5,306 | 11,997 | |
1.4% | 1.0% | |
10.0 | 7.4 | |
about 16 hours ago | 11 days ago | |
Ruby | Go | |
GNU Affero General Public License v3.0 | 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.
Canvas LMS
-
Best LMS for freelancers, to include a way for clients to track learners?
I did not realize that Canvas is open source. That's an LMS most people like. You have hosting space and server-side savvy, you could set that up: https://github.com/instructure/canvas-lms
- Looking for self hosted exam monitoring and management system
-
College level course. The correct answer should be a literal, not a constant, right?
Canvas go brrrrrrrr
-
Self host a video course website like udemy, skillshare
Also look at Canvas.
-
OOP vs. services for organizing business logic: is there a third way?
github.com/instructure/canvas-lms (745k lines): A popular LMS (learning management system).
-
An open-source distributed object storage service
No it's not. From a practical standpoint, I'm not even sure how that could work. You would have to require all browsers to be open source AGPL in order to load a web page served by it. By way of analogy it seems the equivalent of requiring the mouse and keyboard firmware to be licensed the same as the operating system.
A real life example is Instructure, which makes Canvas (which is agpl) but has other proprietary services that interact heavily with it. It's never been a problem
1: https://github.com/instructure/canvas-lms
-
Open source LMS
Look into Canvas LMS, I would recommend using 8GB RAM and at least 4 vCores. I have used it in the past (`2 years ago) and only had issues with cloning class/course templates.
-
[Noob] Trying to create a Learning Management System using Rails 7. Am I biting off more than I can chew?
If you're planning on doing this as business though, bear in mind this is a pretty crowded market. There's already at least one Rails-based LMSes out there (https://github.com/instructure/canvas-lms), and dozens in PHP-land.
-
LMS for home use, recommendations
There is also Canvas.
- Learning Management System
gh-ost
- "At GitHub we do not use foreign keys, ever, anywhere"
-
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:
-
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"
-
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
-
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
-
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
-
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...
-
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.
-
How do you handle RDS schema migrations?
GitHub gh-ost
-
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
What are some alternatives?
edX - The Open edX LMS & Studio, powering education sites around the world!
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]
Chamilo LMS - Chamilo is a learning management system focused on ease of use and accessibility
doctrine-test-bundle - Symfony bundle to isolate your app's doctrine database tests and improve the test performance
Sakai - Sakai is a freely available, feature-rich technology solution for learning, teaching, research and collaboration. Sakai is an open source software suite developed by a diverse and global adopter community.
squawk - 🐘 linter for PostgreSQL, focused on migrations
Moodle - Moodle - the world's open source learning platform
pg_squeeze - A PostgreSQL extension for automatic bloat cleanup
ILIAS - GitHub repository for official ILIAS release branches and development branches (trunk)
hub - A command-line tool that makes git easier to use with GitHub.
Open eClass - Open eClass
Jenkins - Jenkins automation server