MCP Request End to End Request Tracing

When debugging distributed systems, you need to track requests across multiple services and async operations. This article shows how to implement automatic request tracing using Python’s contextvars module, ensuring every log entry includes session and request identifiers for easy correlation.

Apache Spark Examples in Java

This post attempts to share the common issues that data engineer face while writing Spark in Java and how to solve those issues. Writing Spark in Java isn’t fun and my preference is always Scala but there can be situations when you don’t have luxyary to choose language of your preference.

Introduction to jshell/REPL and how to launch inline command in jshell from shell

Pellucid tutorial using java modules, REPL(READ EVALUATE Print Loop) jshell and how to launch jshell inline command from shell
Jdk-9 is one of the major shift for java developers, it has so many powerful tools and jshell is one of them. Jshell shall be used to run small commands, utilities, expressions, tough it helps to avoid developing many standalone utilities but it shouldn’t be used to run java classes directly.