Notes
Charge Back business process
charge backSend Authorization RequestMerchant HandlingReceive Authorization RequestCard ValidationAccount VerificationFraud DetectionDecision MakingGenerate Authorization ResponseSend Authorization Responsemerchant/payment processorcard issuer system
Notes
The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter, Updated and Expanded
Preface accelerate onboarding of new hires and transition. follow-on publications. other ideas
the STARS framework,
transition traps,
the importance of securing early wins
the fuzzy front-end
distinction between the organizational change challenge and the personal adaptive challenge in assessing the transition risk confronting new leaders.
other publications:
Shaping the Game, 2006
The First 90 Days in Government
Notes
kubernetes On-premise
It is a big topic to setup kubernetes correctly. I will keep updating this when I find something new or missed in this.
Notes
Kubelet architecture
In the past I learnt a lot of kubernetes, however there is no much information about kubelet or not deep enough. I couldn’t answer the questions about kubelet correctly in an interview. Here I put all the information I collected from the internet here for my references.
kubelet component architecture how does kubelet work Container Lifecycle Management Through the CRI kubelet, CRI and CNI sequence diagram kubelet, CRI and CNI interaction diagram The process of creating a pod Handler The work of podWorkers syncPod kubelet Runtime Creating a sandbox for a pod References: https://www.
Notes
kubernetes metrics options
Components
Description
Metrics
Scaler
Metrics Server
Metrics Server collects resource metrics from Kubelets and exposes them in Kubernetes apiserver through Metrics API for use by Horizontal Pod Autoscaler and Vertical Pod Autoscaler. Metrics API can also be accessed by kubectl top, making it easier to debug autoscaling pipelines.
Metrics Server is not meant for non-autoscaling purposes
CPU/Memory
Notes
An Elegant Puzzle: Systems of Engineering Management
Organizations Tools Approaches Culture Careers
Notes
The Manager's Path: A Guide for Tech Leaders Navigating Growth and Change
Chapter 1: Management 101 what to expect from a manager
1:1 meeting, every few weeks with direct/line manager; two purposes
create human connections
status update: regular
feedback and workspace guidance: frequest, fast, many wasy
quick feedbackup loop is more efficient
public praise, private critism
feedback type: code, presentation
code, content, layout, style …
role
Notes
FaceID using customized built postgresql
One of my past projects is based neural network in 2020. The solution is quite simple:
put the feature vectors into postgresql database
create distanced based index
I adopted the model and algrithm from face_recognition, and my team trained on sample faces from our internal system to improve the accuracy to reduce the human involvement and save costs. During development, we found that there is a limit of postgres: CUBE_MAX_DIM, my team customize the build of postgreql to work around the limit.
Notes
How to build strong technology career?
The full article "How to Build a Strong Career in Tech" from Thiago Ghisi is at https://www.linkedin.com/pulse/how-build-strong-career-tech-thiago-ghisi/. I want to put the gist here for my reference.
How does a Successful Career in Tech look like?
Definition of a Successful Career The candidate resume metadata doesn’t often lie
resume metadata: Impact of their ideas on a large number of people directly or indirectly. Success = Impact & Influence!