During March 2026, Nagarjuna contributed to the apache/pinot repository by implementing request tracing and correlation for Java client HTTP requests. He developed a mechanism to generate a unique UUID per request and propagate it as an X-Correlation-Id header, ensuring traceability across proxies and load balancers. This enhancement, built using Java and focused on HTTP client and API development, improved observability by enabling end-to-end tracing from client requests through to broker access logs. Nagarjuna collaborated with other contributors to align on code quality, delivering a feature that facilitates faster debugging and root-cause analysis in distributed system environments.