我创建了一个2.6.0的Hadoop集群，配置如下：
设置完成后，工作正常。 1天后，它开始显示如下所示的错误：
[root@Bigdata-017 ~]# start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
15/10/02 16:20:54 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [Bigdata-017]
Bigdata-017: ssh: connect to host Bigdata-017 port 9000: Connection refused
172.16.253.20: ssh: connect to host 172.16.253.20 port 9000: Connection refused
172.16.253.22: ssh: connect to host 172.16.253.22 port 9000: Connection refused
172.16.253.21: ssh: connect to host 172.16.253.21 port 9000: Connection refused
172.16.253.24: ssh: connect to host 172.16.253.24 port 9000: Connection refused
172.16.253.16: ssh: connect to host 172.16.253.16 port 9000: Connection refused
172.16.253.18: ssh: connect to host 172.16.253.18 port 9000: Connection refused
172.16.253.19: ssh: connect to host 172.16.253.19 port 9000: Connection refused
172.16.253.23: ssh: connect to host 172.16.253.23 port 9000: Connection refused
Starting secondary namenodes [0.0.0.0]
0.0.0.0: ssh: connect to host 0.0.0.0 port 9000: Connection refused
15/10/02 16:21:01 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
starting yarn daemons
resourcemanager running as process 2442. Stop it first.
172.16.253.16: ssh: connect to host 172.16.253.16 port 9000: Connection refused
172.16.253.18: ssh: connect to host 172.16.253.18 port 9000: Connection refused
172.16.253.19: ssh: connect to host 172.16.253.19 port 9000: Connection refused
172.16.253.20: ssh: connect to host 172.16.253.20 port 9000: Connection refused
172.16.253.21: ssh: connect to host 172.16.253.21 port 9000: Connection refused
172.16.253.23: ssh: connect to host 172.16.253.23 port 9000: Connection refused
172.16.253.24: ssh: connect to host 172.16.253.24 port 9000: Connection refused
172.16.253.22: ssh: connect to host 172.16.253.22 port 9000: Connection refused
只有资源管理器工作正常。但除此之外，没有一项服务正在运行。请帮帮我。我正在努力解决这个问题。