ansible

优化 

host_key_checking = False    #关闭StrictHostKeyChecking检查

pipelining = True

ssh_args = -C -o ControlMaster=auto -o ControlPersist=7d

forks          = 600

ControlPersist

vi /etc/ssh/sshd_config 

从  MaxStartups 10:30:100

MaxStartups 1000

执行命令

ansible  all  -m  raw -a 'command'