How can I set resource limits for my Docker containers?
You can set resource limits using the --memory
and --cpus
flags when you run a container. For example: docker run --memory=512m --cpus=1 my_image
.
What happens if I exceed these limits?
If a container exceeds its memory limit, it may be terminated by the kernel's OOM (Out of Memory) killer. CPU limits will throttle the container's CPU usage.
Can I change these limits after the container is running?
No, you cannot change resource limits for a running container. You would need to stop the container, update the limits, and then restart it.
Are there any best practices for setting these limits?
Yes, it's best to monitor your application's resource usage and set limits based on that data to avoid performance issues.
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