JedisCluster 运行报错，求大神帮忙啊

[hanger_liu]

搭建了一个集群环境，用jedisCluster去操作，没有keys命令，就按照网上的写法，写了一个方法出来。但是，for循环后发现会报如下错误，不知道怎么解决，大神帮忙

redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool
at redis.clients.util.Pool.getResource(Pool.java:53)
at redis.clients.jedis.JedisPool.getResource(JedisPool.java:226)
at CloudPanSys.Cache.Redis.config.Test.main(Test.java:91)
Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused: connect
at redis.clients.jedis.Connection.connect(Connection.java:207)
at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:93)
at redis.clients.jedis.BinaryJedis.connect(BinaryJedis.java:1767)
at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:106)
at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:868)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:435)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
at redis.clients.util.Pool.getResource(Pool.java:49)
... 2 more

代码如下：
public class Test {
public static Map<String, JedisPool> ConAllNodes(){
HashSet<HostAndPort> nodes = new HashSet<HostAndPort>();
//创建多个主机和端口实例
HostAndPort hostAndPort = new HostAndPort("172.168.82.230", 7000);
HostAndPort hostAndPort1 = new HostAndPort("172.168.82.230", 7001);
HostAndPort hostAndPort2 = new HostAndPort("172.168.82.230", 7002);
HostAndPort hostAndPort3 = new HostAndPort("172.168.82.228", 7003);
HostAndPort hostAndPort4 = new HostAndPort("172.168.82.228", 7004);
HostAndPort hostAndPort5 = new HostAndPort("172.168.82.228", 7005);

//添加多个主机和端口到集合中
nodes.add(hostAndPort);
nodes.add(hostAndPort1);
nodes.add(hostAndPort2);
nodes.add(hostAndPort3);
nodes.add(hostAndPort4);
nodes.add(hostAndPort5);

JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(10000);
config.setMaxIdle(500);
config.setMinIdle(50);
config.setMaxWaitMillis(10000);
config.setTestOnReturn(true);
config.setTestWhileIdle(true);
config.setTestOnBorrow(true);
config.setTimeBetweenEvictionRunsMillis(30000);
config.setNumTestsPerEvictionRun(10);
config.setMinEvictableIdleTimeMillis(60000);
JedisCluster j = new JedisCluster(nodes,5000,5000,config);
Map<String, JedisPool> clusterNodes = j.getClusterNodes();
return clusterNodes;
}
public static void main(String args[]) throws IOException, InterruptedException{
for(int i=0;i<500;i++){
TreeSet<String> keys = new TreeSet<>();
Map<String, JedisPool> clusterNodes = ConAllNodes();
JedisPool jp = null;
Jedis connection=null;
for(String k : clusterNodes.keySet()){
jp = clusterNodes.get(k);
try{
System.out.println(k);
System.out.println(jp.getNumActive());
connection=jp.getResource();
keys.addAll( connection.keys("*"));
}catch (Exception e){
e.printStackTrace();
}finally{
if(connection!=null){
connection.close();
}
}

}

for(String x:keys){
System.out.println(x);
}

}
}
}

[hanger_liu]

没有人吗 ？急求解决方法啊