一、目的 Flume安装好后测试开启监听窗口44444，结果报错Ncat: bind to :::44444: Address already in use. QUITTING. 二、报错详情 Ncat: bind to :::44444: Address already in use. QUITTING. 三、报错原因 经过分析发现，44444窗口已经被占用 [root@hurys2