starting name nodes on [ dable–Virtualbox]
dable–Virtual box: name nodes is running as press 2555. stop it first .
stating datanodes
starting senodary name nodes [ dable–Virtualbox]
dable–Virtual box:senodarynamenode is running as process 2872.stop it first .
已经启动过了呀 你是不是之前启动过了，没有关闭，直接暂停了虚拟机，这样重新运行虚拟机的时候，之前运行的程序是没有停止的