CODEWITHSUNDEEP
javadockermemoryjvm
MIkCode
MIkCode

Reputation: 2835

Docker Java memory usage

I have some issues understanding how a Docker Java container uses memory for the host machine. I gave the container JVM opt 

"JAVA_OPTS=-XX:MaxMetaspaceSize=1024m -Xms=512m -Xmx=1024m -XX:PermSize=512m -XX:MaxPermSize=1024m "

But when I'm running Docker stats on the container I see that MEM USAGE is 1.6GB

Is docker allocating memory for the none of JVM parts of the container?

Do you usually limit the container memory limit?

Upvotes: 0

Views: 1510

Answers (1)

victor sosa
victor sosa

Reputation: 899

That's all the memory of the docker container (OS + JVM) including the operating system. And yes you can put some limit to the memory check:

https://docs.docker.com/engine/reference/run/#runtime-constraints-on-resources

Upvotes: 1

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