What to do when all docker commands hang?

Please follow the below steps to solve this issue

Step 1 : Uninstall docker “sudo yum remove docker"
Step 2 : remove all docker folder
"sudo rm -rf /var/lib/docker”
“sudo rm -rf /var/run/docker”
“sudo rm /var/run/docker.*” (remove docker.sock, docker.pid files)

Step 3 : Reinstall docker "sudo yum install docker"
Step 4 : Start docker “sudo service docker start”

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