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What should I do if docker fails to connect to mysql?

What should I do if docker fails to connect to mysql?

Solution to the failure of docker to connect to mysql: 1. Check the running container through the "docker ps" command; 2. Run "docker exec -it b30062adc08c /bin/bash" to enter the mysql container; 3. Enter "mysql -u root -p "Command; 4. Restart mysql, and then use navicat to connect successfully.

Oct 21, 2022 pm 04:06 PM
连接docker mysql失败
What should I do if docker start cannot start?

What should I do if docker start cannot start?

Solution to docker start failure: 1. Check the running status, and then release the occupied memory through the "echo 3 > /proc/sys/vm/drop_caches" command; 2. Use "$netstat -nltp|grep .. ." command to check whether the port has been occupied. If it is found to be occupied after going online, change it to an available port and restart.

Oct 21, 2022 pm 03:43 PM
start Docker
What to do if there is an error in docker mapping port

What to do if there is an error in docker mapping port

Solution to docker mapping port error: 1. Switch to the root account; 2. Use the "netstat -nap" command to check the pid of the program running; 3. Use the "kill -9 2901 su u260517" command to kill the program and switch the program. .

Oct 21, 2022 pm 03:29 PM
端口 Docker
What to do if docker logs are garbled?

What to do if docker logs are garbled?

Solution to garbled docker logs: 1. Add "ENV LANG en_US.UTF-8 ENV LANGUAGE en_US:en ENV LC_ALL en_US.UTF-8" to the dockerfile; 2. Select "Edit Custom VM Options" and add "Dfile.encoding =utf-8" is enough.

Oct 21, 2022 pm 03:15 PM
logs Docker
What should I do if I can't enter docker hub?

What should I do if I can't enter docker hub?

The reason why docker hub cannot be accessed is because "hub.docker.com" is located abroad, so the access speed is very slow, resulting in the inability to access the URL. The solution: 1. Find the "daemon.json" file; 2. Use the vim command Open it; 3. Add the content "{ "registry-mirrors" :["https://docker.mirrors.ustc.edu.cn"]}"; 4. Restart docker.

Oct 21, 2022 pm 02:54 PM
docker hub Docker
What to do if docker cp fails

What to do if docker cp fails

Solution to docker cp failure: 1. Open the command window; 2. Execute "docker cp 312ee12b47a8:/opt/test.sh /mnt/www" command; 3. Execute "docker cp samba.1.x368e0ft61led8s2eu6ecxpmz:/opt/test" .sh /mnt/www” command.

Oct 21, 2022 pm 02:47 PM
cp命令 Docker
What should I do if docker cannot pull?

What should I do if docker cannot pull?

Solution to the problem that docker cannot pull: 1. Check your "docker root dir" when the docker service is on; 2. Close the docker service; 3. Create a new "root dir path"; 4. Edit "daemon.json" and add ""graph": "/docker/data""; 5. Execute "systemctl daemon-reload"; 6. Restart the docker service.

Oct 21, 2022 pm 02:36 PM
pull Docker
What are the internal components of docker?

What are the internal components of docker?

The internal components of docker are: 1. dockerclient, which is a general term. It can be a command line docker or a client that follows the docker api rules; 2. docker server server; 3. Docker image, which is a read-only Template is the basis for starting a container; 4. Registry, which is a mirror warehouse; 5. Docker container.

Oct 21, 2022 pm 02:27 PM
组件 Docker
What to do if mysql is garbled in docker

What to do if mysql is garbled in docker

Solution to mysql garbled code in docker: 1. Create two directories, namely "/tmp/mysql/data" and "/tmp/mysql/conf"; 2. Write the "hmy.cnf" file; 3. Create a container; 4. Use "docker ps -a" to check whether the creation is successful; 5. Enter the mysql container; 6. Test the connection successfully.

Oct 21, 2022 pm 02:20 PM
乱码 Docker
What is the difference between pod and docker

What is the difference between pod and docker

The difference between pod and docker: 1. Pod is the smallest deployment unit in k8s, and docker is an open source application container engine; 2. Pod is a multi-process design. A Pod can have multiple containers and can run multiple applications. Docker is a single-process design. One application runs in one container, and the daemon process can ensure that multiple containers are started.

Aug 29, 2022 pm 04:32 PM
Docker
What is the difference between docker and virtual machine

What is the difference between docker and virtual machine

The difference between docker and virtual machines: 1. Docker starts quickly at the second level, while virtual machines usually take several minutes to start; 2. Different performance losses, docker requires fewer resources; 3. Different isolation, docker belongs between processes The isolation is weak, while virtual machines can achieve system-level isolation.

Aug 29, 2022 pm 04:28 PM
Docker
Why does docker need port mapping?

Why does docker need port mapping?

Because when the docker container is running, if the port mapping parameters are not specified, the network application services in the container cannot be accessed through the network outside the container, so the docker port mapping needs to be set; docker binds the host system through the port. Interface that allows non-local clients to access services running inside the container.

Aug 23, 2022 pm 05:52 PM
Docker
What engine is docker based on?

What engine is docker based on?

docker is an advanced container engine based on LXC; LXC is the abbreviation of "Linux Container" and is a kernel virtualization technology that can provide lightweight virtualization to isolate processes and resources without providing an instruction interpretation mechanism and full Additional complexities of virtualization.

Aug 23, 2022 pm 05:46 PM
Docker
Does docker-compose need to be installed?

Does docker-compose need to be installed?

"docker-compose" needs to be installed and is the official open source project of docker; "docker-compose" is a docker tool used to define a docker tool for running complex applications. This tool can be used to manage containers easily and efficiently, and can be managed through a configuration file Multiple docker containers.

Aug 23, 2022 pm 05:40 PM
Docker

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