Log Aggregation
Comprehensive guide to the Log Aggregation pattern — ELK/EFK stack, structured logging, MDC enrichment, Spring Boot implementation, Loki/Grafana alternative, alerting, and production gotchas.
Comprehensive guide to the Log Aggregation pattern — ELK/EFK stack, structured logging, MDC enrichment, Spring Boot implementation, Loki/Grafana alternative, alerting, and production gotchas.
Comprehensive guide to observability in distributed systems covering the three pillars (metrics, logs, traces), SLOs, alerting strategies, and Spring Boot Actuator + Micrometer setup.
Principal engineering guide to OpenSearch internals (Apache Lucene segments, FSTs, DocValues, Segment Replication, ISM tiers) and end-to-end Splunk-to-OpenSearch migration (Schema-on-Read vs Schema-on-Write, SPL to PPL/DSL translation, Data Prepper pipelines, and capacity math).
Principal-level deep dive into SLF4J 2.x architecture, log level severity gates, parameterized evaluation, reading and formatting multi-layer Java error stacktraces, JVM fillInStackTrace() mechanics, FastThrow JIT optimizations, and production logging patterns.
Splunk core architecture (Search Head, Indexers, Forwarders) and SPL fundamentals — pipeline mechanics, fast filtering, bloom filters, boolean logic, and transforming commands.