最近在学习中华石杉老师亿级流量的课程，在storm 搭建集群的时候遇到的问题截图如下，请大神帮忙看一下，是什么原因，这个问题已经困扰很久了，希望能够解决，谢谢 72 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 107 to Netty-Client-a107a/192.168.1.107:6700 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6700 2018-08-15 15:46:28.772 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 554ms (MAX) 2018-08-15 15:46:29.583 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 108 to Netty-Client-a107a/192.168.1.107:6700 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6700 2018-08-15 15:46:29.584 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 556ms (MAX) 2018-08-15 15:46:29.585 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 109 to Netty-Client-a107a/192.168.1.107:6701 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6701 2018-08-15 15:46:29.586 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 558ms (MAX) 2018-08-15 15:46:30.184 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 110 to Netty-Client-a107a/192.168.1.107:6701 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6701 2018-08-15 15:46:30.184 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 560ms (MAX) 2018-08-15 15:46:30.185 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 109 to Netty-Client-a107a/192.168.1.107:6700 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6700 2018-08-15 15:46:30.186 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 558ms (MAX) 2018-08-15 15:46:30.768 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 111 to Netty-Client-a107a/192.168.1.107:6701 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6701 2018-08-15 15:46:30.768 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 563ms (MAX) 2018-08-15 15:46:30.769 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 110 to Netty-Client-a107a/192.168.1.107:6700 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6700 2018-08-15 15:46:30.769 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 561ms (MAX) 2018-08-15 15:46:31.370 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 112 to Netty-Client-a107a/192.168.1.107:6701 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6701 2018-08-15 15:46:31.371 o.a.s.u.StormBoundedExponentialBackoffRetry client-boss-1 [WARN] WILL SLEEP FOR 564ms (MAX) 2018-08-15 15:46:31.372 o.a.s.m.n.Client client-boss-1 [ERROR] connection attempt 111 to Netty-Client-a107a/192.168.1.107:6700 failed: java.net.ConnectException: Connection refused: a107a/192.168.1.107:6700 2018-08-15 15:46:31.372 o.a.s.u.StormBoundedExponen