Wrote an essay on Heartbeats in Distributed Systems, capturing both the theoretical and practical aspects, including how Cassandra implements them. Give it a read.
Principal Engineer II at Razorpay - building Agent Studio, Ex-staff engg at GCP Memorystore & Dataproc, Creator of DiceDB, ex-Amazon Fast Data, ex-Director of Engg. SRE and Data Engineering at Unacademy. I spark engineering curiosity through my no-fluff engineering videos on YouTube and my courses