15 Sep 2021
- PostgreSQL/CockroachDB?
- MongoDB
- Cassandra (Discord, Instagram Direct, Netflix, Spotify, old Facebook Messenger, old Twitter)
- HBase (Facebook Messenger)
- MySQL Vitess (slack)
26 Aug 2021
PXE netboot linux live
18 Aug 2021
Time Machine failing: “an error occurred while copying files”
11 Aug 2021
Delete files before 1st of previous month.
11 Aug 2021
|
Data Warehouse |
Data Lake |
Data type |
Only structured data |
AUnstructured or raw |
Schema |
On-Wirte |
On-Read |
User |
Business user |
Data professionals |
Data Processing |
Extract, Transform, Load |
Extract, Load, Transform |
Application |
Business Report/Record |
AI/ML, Data science |
Accessibility |
More complicated and costly to make changes |
Highly accessible and quick to update |
Storage |
Only required data is kept |
Can keep any data |
Cost |
High |
Low |
06 Aug 2021
Development env background