containers

问题 I'm running a Java program inside a Docker container that has a hard memory limit of 4GB. I've set the max heap to 3GB but still the Java program exceeds the limit and gets killed (OOMKilled). My question is : How can I configure Java to respect the set container limit and throw an OutOfMemoryException instead of trying to allocate beyond the limit and get its ass kicked by the host kernel? Update : I'm an experienced Java developer and have a fair understanding of the JVM. I know how to set

问题 I'm running a Java program inside a Docker container that has a hard memory limit of 4GB. I've set the max heap to 3GB but still the Java program exceeds the limit and gets killed (OOMKilled). My question is : How can I configure Java to respect the set container limit and throw an OutOfMemoryException instead of trying to allocate beyond the limit and get its ass kicked by the host kernel? Update : I'm an experienced Java developer and have a fair understanding of the JVM. I know how to set

问题 I'm running a Java program inside a Docker container that has a hard memory limit of 4GB. I've set the max heap to 3GB but still the Java program exceeds the limit and gets killed (OOMKilled). My question is : How can I configure Java to respect the set container limit and throw an OutOfMemoryException instead of trying to allocate beyond the limit and get its ass kicked by the host kernel? Update : I'm an experienced Java developer and have a fair understanding of the JVM. I know how to set

问题 From Azure we try to create container using the Azure Container Instances with prepared YAML. From the machine where we execute az container create command we can login successfully to our private registry (e.g fa-docker-snapshot-local.docker.comp.dev on JFrog Artifactory ) after entering password and we can docker pull it as well docker login fa-docker-snapshot-local.docker.comp.dev -u svc-faselect Login succeeded So we can pull it successfully and the image path is the same like when doing

问题 From Azure we try to create container using the Azure Container Instances with prepared YAML. From the machine where we execute az container create command we can login successfully to our private registry (e.g fa-docker-snapshot-local.docker.comp.dev on JFrog Artifactory ) after entering password and we can docker pull it as well docker login fa-docker-snapshot-local.docker.comp.dev -u svc-faselect Login succeeded So we can pull it successfully and the image path is the same like when doing

问题 We had a problem with our hard drive which contains the data folder for postgres database we repaired that hard and move the data folder to new hard drive now when we try to start our db container we get following error. db_1 | db_1 | PostgreSQL Database directory appears to contain a database; Skipping initialization db_1 | db_1 | FATAL: bogus data in lock file "postmaster.pid": "" I tried to remove the postmaster.pid file but then I get the following error, db_1 | PostgreSQL Database

问题 I am trying to stop all running containers as a first step and then remove them. I know that I can do it using Anslible shell package and run this command: docker container stop $(docker container ls -aq) As a second step I can do the same with shell package and clean the dead containers / images / volumes: docker system prune -a -f --volumes I have tried something like this (sample of code): - name: Stop all containers: shell: "docker container stop $(docker container ls -aq)" ignore_errors:

问题 I am trying to stop all running containers as a first step and then remove them. I know that I can do it using Anslible shell package and run this command: docker container stop $(docker container ls -aq) As a second step I can do the same with shell package and clean the dead containers / images / volumes: docker system prune -a -f --volumes I have tried something like this (sample of code): - name: Stop all containers: shell: "docker container stop $(docker container ls -aq)" ignore_errors:

问题 I have installed docker on my mac. I have MySQL container which is running on my local machine (MAC). Docker ps command is giving me below output - CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES b5c50b2d334a test_mysql2 "docker-entrypoint.s…" 2 hours ago Up 2 hours (healthy) 0.0.0.0:32783->3306/tcp test_mysql2_1 I know username and password to the mysql which would be setup up in the container. I want to connect to mysql and run some queries But I am not able to figure out how to

问题 Not sure if this is the right place, please point me to a different forum if not. In a multi-cluster kubernetes setup, is cross-cluster communication a valid design? In particular, a pod in one cluster relying on a pod in another cluster. Or are there limitations or anti-patterns associated with this that we should avoid? If not, what tools do you use to manage this deployment and monitor load on each cluster? 回答1: Multicluster deployments give you a greater degree of isolation and