How do I troubleshoot Java containers in Docker?

I'm having issues with my Java application running in a Docker container. What should I check first?

First, check the container logs for any error messages. You can use the command docker logs <container_id>.

I see a 'java.lang.OutOfMemoryError'. What does that mean?

This error indicates that your Java application is running out of memory. You may need to increase the memory limit for your container.

How can I increase the memory limit for my Docker container?

You can set the memory limit using the -m flag when you run your container, like this: docker run -m 512m <image_name>.

Thanks! Is there a way to monitor memory usage in real-time?

Yes, you can use the docker stats command to monitor the resource usage of your containers in real-time.