I’m a software engineer working at a big tech company. I actually love what I do , especially when it comes to low level stuff, systems programming, and diving deep into how things really work under the hood. Outside of work, I can talk about football and Formula 1 for hours…
Most thinks consistency is binary, either your DB is “consistent” or it isn’t. In reality: Leaderless Replication (Dynamo/Cassandra) let you write anywhere → great for uptime + latency But now your reads can conflict For fixing, choose your tradeoff : last-write-wins (fast,…
Most systems don’t crash because of “bad code.” They crash because of bad data. One corrupt record and suddenly queries are garbage Half a write? Now you’re in inconsistent state hell Two systems disagree on the “truth”? Phantom bugs forever This is why stuff like Kafka…
I Love DATABASES. Been nerding out on replication models this week. Single-leader replication: one node takes writes, others just copy simple + consistent downside: leader becomes the bottleneck, failover hurts Multi-leader replication: multiple nodes can accept writes great…
I love DATABASES. I was reading this week about how Postgres connection pooling can quietly kill performance. Too many idle connections pile up -> memory bloat + file descriptors eaten -> Postgres ends up spending more time handling connections than serving queries. Simple…
Was working on a side project in Go the other night and ran into a stupid crash. No clue where it was coming from. Instead of scrolling through the code, forced myself to slow down and stick to a process: cut code in half until I isolated it (binary search style) reproduced it…
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