liunx 集群错误 redis.clients.jedis.exceptions.JedisNoReachableClusterNode No reachable node in cluster

Exception in thread "main" redis.clients.jedis.exceptions.JedisNoReachableClusterNodeException: No reachable node in cluster
at redis.clients.jedis.JedisSlotBasedConnectionHandler.getConnection(JedisSlotBasedConnectionHandler.java:57)
at redis.clients.jedis.JedisSlotBasedConnectionHandler.getConnectionFromSlot(JedisSlotBasedConnectionHandler.java:74)
at redis.clients.jedis.JedisClusterCommand.runWithRetries(JedisClusterCommand.java:116)
at redis.clients.jedis.JedisClusterCommand.run(JedisClusterCommand.java:31)
at redis.clients.jedis.JedisCluster.get(JedisCluster.java:124)

at com.qf.Test1.TestJedis2.main(TestJedis2.java:31)

解决方案：   防火墙没有关  回到crt界面关闭防火墙即可

reboot   重启命令

shutdown –h 关机不重启

shutdown –r 关机后立即重

ifconfig   windows  ：ipconfig 

 

启用：ifconfig eth0 up

禁用：if config eth0 down

 

ping :查看网络是否连通 

 

关闭防火墙：

centos 6

service iptables stop

sudo chkconfig iptables off

 

centos7

systemctl stop firewalld.service #停止

systemctl disable firewalld.service

 

 

netstat :

查看占用端口的进程号：netstat -anp|grep 8080

查看端口状态：  netstat -an | grep 2181

查看端口是否被占用：   netstat -tunlp |grep 2181

Kill -9 进程号