Claude Code deployment

Logging Configuration Not Producing Output

Application is running but logging statements produce no output. Debug logs don't appear even with verbose configuration. Application logs nowhere for troubleshooting despite logging statements in code.

Logging framework is configured but output isn't being written.

Error Messages You Might See

No logging output Debug logs not appearing Log file not created
No logging outputDebug logs not appearingLog file not created

Common Causes

  1. Logging configuration file (logback.xml, log4j.properties) not in classpath
  2. Log level set too high (WARN, ERROR only) hiding DEBUG/INFO messages
  3. Logger name doesn't match configuration (logger "com.example" vs config for "com.other")
  4. Appender (file, console) not configured properly
  5. Log file path doesn't exist or isn't writable

How to Fix It

Verify logging config file exists: src/main/resources/logback.xml (Logback). Check log level: should include INFO or DEBUG. Verify logger name matches: new Logger("com.example.MyClass"). Verify appenders: console for local, file for production. Test with: logger.info("test message") should appear. Check file permissions: can application write to log file directory?

Real developers can help you.

Omar Faruk Omar Faruk As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience. My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture. I played a key role in creating a scalable and maintainable platform to support educators and learners globally. I'm enthusiastic about embracing new challenges and making meaningful contributions. legrab legrab I'll fill this later ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems. Prakash Prajapati Prakash Prajapati I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale. Anthony Akpan Anthony Akpan Developer with 8 years of experience building softwares fro startups Caio Rodrigues Caio Rodrigues I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures. I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations. Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization. I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems. My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.** Bastien Labelle Bastien Labelle Full stack dev w/ 20+ years of experience Simon A. Simon A. I'm a backend developer building APIs, emulators, and interactive game systems. Professionally, I've developed Java/Spring reporting solutions, managed relational and NoSQL databases, and implemented CI/CD workflows. Richard McSorley Richard McSorley Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures. Jared Hasson Jared Hasson Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever

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Frequently Asked Questions

Where should logback.xml be located?

src/main/resources/logback.xml. Built into JAR at runtime. Automatically found by Logback on startup.

How to see all logs?

Set root logger level to DEBUG: <root level="DEBUG">. Or specific logger: <logger name="com.example" level="DEBUG"/>.

How to log to file?

Configure FileAppender in logback.xml: <appender name="FILE" class="ch.qos.logback.core.FileAppender"><file>/var/log/app.log</file></appender>.

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