MMainStay Marketing·4d agoKafka Hot-Key Partition Skew: Mitigating Consumer Starvation with Synthetic Key SaltingIn Apache Kafka architectures, data ordering is guaranteed only at the partition level3 min read·mainstay.hashnode.dev
MMainStay Marketing·Nov 6Distributed Tracing with OpenTelemetry: Propagating W3C Context Across Apache Kafka Event PipelinesWhen a producer writes an event to a broker, the synchronous HTTP request lifecycle terminates3 min read·mainstay.hashnode.dev
MMainStay Marketing·Nov 5Cooperative Sticky Assignors: Eliminating Stop-the-World Rebalance Freezes in Apache Kafka ClustersIn high-throughput event streaming topologies, Apache Kafka consumer groups rely on dynamic partition assignment to distribute workloads3 min read·mainstay.hashnode.dev
NNaveed Ahmed·Nov 4Apache Kafka Architecture: What DevOps Engineers Need to KnowExplore Kafka architecture, partitions, consumer groups, KRaft metadata, Docker setup, Spring Boot integration, and Kubernetes operations.3 min read·naveedkumbhar.hashnode.dev
YYadukrishnan·Oct 31Fast Approximate Analytics in Scala with Apache DataSketchesA practical Scala guide to distinct counts (HLL), top-K (Frequent Items) and quantiles (KLL), plus inspecting stored sketches with sketchprobe7 min read·yadukrishnan.live2
DDaanial Farrukh·Oct 29Webmail Returns 502 Only When People Are Actually Using It — The One Proxy Flag cPanel ForgotWebmail returns 502 Bad Gateway only when many users log in, but port 2096 works. The cause is a missing disablereuse=on in cPanel's proxy.12 min read·quabin.hashnode.dev
AAumCreate·Oct 26How to tell GPTBot, ClaudeBot, and ordinary monitoring apart in access logsShort answer: the GPTBot and ClaudeBot user-agent tokens identify what the request claims to be, but a user agent is self-declared.9 min read·aumcreate.hashnode.dev
YYuvraj.R·Oct 23Deploying a Static Website on AWS EC2 Using ApacheIn this project, I deployed a static website called Dimension on an AWS EC2 instance using Ubuntu Linux and Apache2.4 min read·build-break-fix-diaries-with-yuvrajj.hashnode.dev
DDaanial Farrukh·Oct 21The Firewall That Was Never On — CSF Test Mode and 150 Full Apache WorkersCSF in Test Mode means no firewall at all. A 2-second scanner burst filled 150 Apache workers. How to check TESTING, set CONNLIMIT and verify lfd.12 min read·quabin.hashnode.dev
DDaanial Farrukh·Oct 18The Outage That Wasn't a DDoSSite and webmail died, WHM stayed up, everyone said DDoS. It was one scraper, a URL that never ends and pm.max_children = 5. How I proved it.13 min read·quabin.hashnode.dev3A
