rponte

Why gRPC load balancing is so tricky?

At a high-level, we need to understand two points:

• gRPC is built on HTTP/2, and HTTP/2 is designed to have a single long-lived TCP connection (a sticky and persistent connection);
• To do gRPC load balancing, we need to shift from connection balancing to request balancing;

Some interesting articles about this subject

• Load Balancing gRPC services

abdus

System Design Interesting Reads

Basics:

• System Design Cheatsheet · GitHub
• System Design Primer
• How to Succeed in a System Design Interview
• Approach a System Design Interview
• System Design, Chapter 2: Sharding
• System Design, Chapter 3: Load Balancing

avidLearnerInProgress

Youtube channels:

1. Gaurav Sen
2. Rachit Jain
3. Akshay Saini
4. Tushar Roy
5. mycodeschool
6. Saurabh School
7. Keerthi Purswani
8. Nick White
9. Back To Back SWE

vfarcic

# Source: https://gist.github.com/c83d74ec70b68629b691bab52f5553a6

###############################
# Preparing For The Exercises #
###############################

git clone \
    https://github.com/vfarcic/devops-catalog-code.git

cd devops-catalog-code

dwdraju

kind: Role
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: user-log-reader
  namespace: default
rules:
- apiGroups:
    - ""
  resources:
  - pods

ConnectExtend

/**
* Takes a google maps api key and
* a json props object to generate
* a valid URL to a static map image.
* 
* @returns a valid URL to static map image
*/
function getStaticMap(key, props) {
 const markers = (props.markers || []).map(marker => 

vfarcic

cd k8s-specs

git pull

minikube start --vm-driver=virtualbox

kubectl config current-context

kubectl create cm my-config \
    --from-file=cm/prometheus-conf.yml

vfarcic

# Source: https://gist.github.com/d860631d0dd3158c32740e9260c7add0

minikube start --vm-driver=virtualbox

kubectl get nodes

git clone https://github.com/vfarcic/k8s-specs.git

cd k8s-specs

jeroenr

apiVersion: v1
kind: Namespace
metadata:
  name: monitoring
  labels:
    name: monitoring
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:

steinwaywhw

• Use curl to get the JSON response for the latest release
• Use grep to find the line containing file URL
• Use cut and tr to extract the URL
• Use wget to download it

curl -s https://api.github.com/repos/jgm/pandoc/releases/latest \
| grep "browser_download_url.*deb" \
| cut -d : -f 2,3 \
| tr -d \" \