# What is Apache log4j used for? What is Apache log4j used for? ##### Post Metadata

# Is log4j open source? Is log4j open source? ##### Post Metadata

# What are the format characters used in log4j? What are the format characters used in log4j? ##### Post Metadata

# What is difference between log4j and log4j2? What is difference between log4j and log4j2? ##### Post Metadata

# What is log4j used for? What is log4j used for? ##### Post Metadata

# What is the best performance tips for logging with log4j2 with spark? Spark jobs are very expensive and hefty parallelism sometimes make it difficult for the logging framework to cope up. What is the best strategy to improve without impacting application performance and with help of less resource consumption. ##### Post Metadata - Net upvotes: 1

# How do I add dynamically values into logs ##### Post Metadata - Net upvotes: 1

# Hi, I want to use colors while printing logs. Any example configuration? I want to highlight some incidents with colors which will help our debugging easy. Could someone provide examples to print colors. ##### Post Metadata - Net upvotes: 1

# Can we do it with annotations? Enable annotations based configs and logs without the use of 3rd party libraries ##### Post Metadata - Net upvotes: 1