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Life and Investment Through the Lens of Uncertainty

Life and Investment Through the Lens of Uncertainty

Disclaimer: Opinions are my own. Not investment advice.

03 Jan 2021
Navigating Shell for Productivity and Profit

Navigating Shell for Productivity and Profit

I hope you find inspirations from these pretty neat shell tricks and my shell setup.

20 Nov 2020
The Good, Bad, and Ugly: Istio for Short-lived Pods

The Good, Bad, and Ugly: Istio for Short-lived Pods

Kubernetes does not differentiate sidecars and application containers in a Pod. Hence, enabling Istio for short-running workloads imposes additional challenges to the conventional approach of injecting an Envoy sidecar to...

26 Apr 2020
DNS, UDP, IP Anycast, and All That

DNS, UDP, IP Anycast, and All That

DNS prefers UDP. There are times when DNS must run on TCP (request or response size exceeds a single packet, perhaps due to too many response records), but UDP is...

05 Apr 2020
Lessons from Scaling GKE: L4 ILB Tops at 250 Nodes

Lessons from Scaling GKE: L4 ILB Tops at 250 Nodes

My team at Cruise operates tens of Kubernetes clusters with 10,000s cores and 100s of TB of RAM. Since migration to GCP, we have hit several interesting scaling issues. One...

20 Mar 2020
Parameters with Defaults in Go: Functional Options

Parameters with Defaults in Go: Functional Options

Unlike C++ or Python, Go does not support function parameters with default values if unspecified. Specifically, we want that

01 Mar 2020