Raj Aryan — Writinghttps://raj2503.github.io/writing/Technical notes on backend systems, distributed reliability and performance engineering.en-INWed, 29 Jul 2026 00:00:00 +0530Retry amplification: when resilience becomes the outagehttps://raj2503.github.io/writing/retry-amplification/https://raj2503.github.io/writing/retry-amplification/Wed, 29 Jul 2026 00:00:00 +0530A draft technical note on retry budgets, deadline propagation and failure cascades.Cache boundaries are an API design decisionhttps://raj2503.github.io/writing/cache-boundaries/https://raj2503.github.io/writing/cache-boundaries/Wed, 29 Jul 2026 00:00:00 +0530A draft technical note on cache ownership, freshness, invalidation and degraded reads.Retry Storm: How A Single User Crashed 30 ECS Tasks At Productionhttps://medium.com/@Rajjj/retry-storm-how-a-single-user-crashed-30-ecs-tasks-at-production-98c84c17331chttps://medium.com/@Rajjj/retry-storm-how-a-single-user-crashed-30-ecs-tasks-at-production-98c84c17331cSat, 09 Aug 2025 00:00:00 +0530A public production debugging story about retry amplification and ambiguous 503 errors.When Apache Solr’s Replication Handler Went Rogue: Production Debugging Storyhttps://medium.com/@Rajjj/when-apache-solrs-replication-handler-went-rogue-production-debugging-story-6f61cc25acf0https://medium.com/@Rajjj/when-apache-solrs-replication-handler-went-rogue-production-debugging-story-6f61cc25acf0Thu, 14 Aug 2025 00:00:00 +0530A public production debugging story about Apache Solr replication, timing and leadership changes.