Books on The Edge Cases

Designing Machine Learning Systems

Wed, 04 Oct 2023 00:41:17 +0000

[author: Chip Huyen]

Summary

What are the key ideas? How can I apply this knowledge that I learned? How do these ideas relate to what I already know?

💡Ideas

Note: These should become Project Idea fleeting notes with a link back to this source.

Fleeting Notes

Note: Conceptual notes that aren’t as tied to the source material. These are fodder for processing into evergreen notes.

Literature Notes

Note: Commentary on the book or things you don’t want to forget. Maybe for use in a public mind garden. Should have a visible source reference. These are “weakly evergreen” because they’re tied heavily to a single piece. Must be in your own words. These should be processed into Evergreen notes, or used as fodder for them. ““Literature notes”, titled after a single work and meant primarily as linkages to other more durable notes, and as targets for backlinks. I write these roughly as “outline notes,” except for someone else’s ideas.” These should be regularly refactored into individual notes in Sources/! Literature Notes/

Machine Learning System Design Interview

Sat, 15 Apr 2023 02:43:54 +0000

Note: See here for valid statuses

[author: Ali Aminian Alex Xu]

Summary

What are the key ideas? How can I apply this knowledge that I learned? How do these ideas relate to what I already know?

💡Ideas

Note: These should become Project Idea fleeting notes with a link back to this source.

Fleeting Notes

Note: Conceptual notes that aren’t as tied to the source material. These are fodder for processing into evergreen notes.

System Design Interview

Mon, 31 Oct 2022 03:03:50 +0000

Note: See here for valid statuses

[author: ]

What is the Book About?

Note: See How To Read a Book What kind of book is it?

Non-fiction, practical book. Examples of system design interview questions. What is the book about in 1-2 sentences at most?
System design interview questions and how to answer them.

Summaries

Chapter 1: Scale from Zero to Millions of Users

Single Server Setup

Request flow:
1. Users access websites through domain names, which are resolved by DNS
2. Internet protocol (IP) address is returned to the browser.
3. Once IP address is obtained, HTTP requests are sent directly to server
4. The web server returns HTML pages or JSON response.

Database

Separating web/mobile traffic (web tier) from database (data tier) servers allows them to be scaled independently.
Non-relational DBs might be right choice if:
- Application requires super-low latency
- Data are instructured
- You only need to serialize and deserialize data
- You need to store massive amount of data.

Vertical vs. Horizontal Scaling

Vertical scaling - adding more power (CPU, memories, etc.) to servers. “Scale up”
- Limitations:
  - Hard limit - can’t add unlimited CPU and memory
  - No failover or redundancy
Horizontal scaling - adding more serviers to pool of resources

Load Balancer

A load balancer evenly distributes traffic among web servers.
The load balancer communicates with web serves via private IPs.
Load balancers can redirect traffic away from offline servers
They also can handle rapid gains in traffic, allowing you to simply add more servers behind the load balancer to accomodate the growing traffic.

Database Replication

Master/slave terminology: master only handles writes, slave databases only support reads and get copies of databases from the master.
Advantages
- Better performance
- More reliable
If one slave DB is available then goes offline, read operations get directed to master database
If master goes offline, after some time a slave will be promoted to the new master.

Cache

A cache is a temporary storage area that stores the result of expensive responses/frequently acccesed data in memory to serve them more quickly.

Learn Functional Programming With Elixir

Thu, 19 Aug 2021 21:35:26 +0000

Metadata

Author: Ulisses Almeida
Full Title: Learn Functional Programming With Elixir
Category: #books

Literature Notes

TABLE rows.file.link AS "Literature Note", rows.file.cday AS "Date"

FROM #note/literature AND [Learn Functional Programming With Elixir](/notes/learn-functional-programming-with-elixir/)

GROUP BY file.link

sort date ASCENDING

Summaries

Chapter 1: Thinking Functionally

In functional programming, functions are the basic building blocks of a program, values are immutable, and the code is declarative, rather than imperative. Functions, immutability, and declarative code are the core principles of functional programming.