kubernetes free data blocks which is less than minimum required

出现问题：

{kubelet centos-minion-1} Warning FailedSync Error syncing pod, skipping: failed to “StartContainer” for “POD” with RunContainerError: “runContainer: Error response from daemon: {\”message\”:\”devmapper: Thin Pool has 163779 free data blocks which is less than minimum required 163840 free data blocks. Create more free space in thin pool or use dm.min_free_space option to change behavior\”}”

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Warning FailedSync Error syncing pod, skipping: failed to “StartContainer” for “POD” with RunContainerError: “runContainer: Error response from daemon: {\”message\”:\”devmapper: Thin Pool has 163597 free data blocks which is less than minimum required 163840 free data blocks. Create more free space in thin pool or use dm.min_free_space option to change behavior\”}”

运行下面三个命令：
// 注意，以下三个命令执行时可能出错是正常的。

清理exited进程：

docker rm $(docker ps -q -f status=exited)

清理dangling volumes：

docker volume rm $(docker volume ls -qf dangling=true)

清理dangling image：

docker rmi $(docker images --filter "dangling=true" -q --no-trunc)