Questions

Why is docker killing my container?

Why is docker killing my container?

The container has consumed too much memory, and has been killed by the host OS: If the operating system detects that it’s running out of memory, it might start killing processes to free up memory. You can set hard memory limits on your container by using the -m switch with docker run .

How do I know if my docker container is healthy?

If health check is enabled, then the container can have three states:

  1. Starting: Initial status when the container is still starting.
  2. Healthy: If the command succeeds, then the container is healthy.
  3. Unhealthy: If a single run of the takes longer than the specified timeout, then it is considered unhealthy.

What do I do if my docker container is unhealthy?

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You can restart automatically an unhealthy container by setting a smart HEALTHCHECK and a proper restart policy. The Docker restart policy should be one of always or unless-stopped . The HEALTHCHECK instead should implement a logic that kills the container when it’s unhealthy.

How do I check the logs of a running docker container?

First of all, to list all running containers, use the docker ps command. Then, with the docker logs command you can list the logs for a particular container. Most of the time you’ll end up tailing these logs in real time, or checking the last few logs lines.

How do I keep my docker containers alive?

Solution. A simple way to keep a container alive in daemon mode indefinitely is to run sleep infinity as the container’s command.

How much RAM do I need for docker?

Minimum: 8 GB; Recommended: 16 GB. AnzoGraph needs enough RAM to store data, intermediate query results, and run the server processes.

How can you tell why a container is unhealthy?

If health check is enabled, then the container can have three states:

  1. starting – Initial status when the container is still starting.
  2. healthy – If the command succeeds then the container is healthy.
  3. unhealthy – If a single run of the takes longer than the specified timeout then it is considered unhealthy.
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How do I check my ECS health check?

You can check the health status of your tasks and containers in the ECS Console or with the ECS DescribeTasks API. To learn more, visit the Amazon ECS documentation. You can get more information about Amazon ECS on the product page.

How can I check my Docker status?

The operating-system independent way to check whether Docker is running is to ask Docker, using the docker info command. You can also use operating system utilities, such as sudo systemctl is-active docker or sudo status docker or sudo service docker status , or checking the service status using Windows utilities.

How do I execute a Docker container?

Follow these steps:

  1. Use docker ps to get the name of the existing container.
  2. Use the command docker exec -it /bin/bash to get a bash shell in the container.
  3. Or directly use docker exec -it to execute whatever command you specify in the container.
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How do I stop all running Docker containers?

To stop all Docker containers, simply run the following command in your terminal:

  1. docker kill $(docker ps -q)
  2. docker rm $(docker ps -a -q)
  3. docker rmi $(docker images -q)

How do I stop docker container from running in the background?

To stop a container you use the docker stop command and pass the name of the container and the number of seconds before a container is killed. The default number of seconds the command will wait before the killing is 10 seconds.