JedisClusterMaxRedirectionsException: Too many Cluster redirections

摘要: 最近使用java项目测试redis集群，遇到报错“JedisClusterMaxRedirectionsException: Too many Cluster redirections”

在测试redis集群的时候遇到错误：

redis.clients.jedis.exceptions.JedisClusterMaxRedirectionsException: Too many Cluster redirections?

错误原因：

创建redis集群的时候使用的命令是：./redis-trib.rb create --replicas 1 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 127.0.0.1:7006

但是由于Java客户端在集群之外所以是这样写的：

@Test
public void redisTest88(){

HashSet<HostAndPort> nodes = new HashSet<HostAndPort>();
boolean add = nodes.add(new HostAndPort("192.168.11.88", 7000));
nodes.add(new HostAndPort("192.168.11.88", 7001));
nodes.add(new HostAndPort("192.168.11.88", 7002));
nodes.add(new HostAndPort("192.168.11.88", 7003));
nodes.add(new HostAndPort("192.168.11.88", 7004));
nodes.add(new HostAndPort("192.168.11.88", 7005));
nodes.add(new HostAndPort("192.168.11.88", 7006));
JedisCluster cluster = new JedisCluster(nodes);
System.out.println("cluster:"+cluster);
String string = cluster.get("key1");
System.out.println(string);
try {
if(cluster != null){
cluster.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

host地址不匹配，导致Too many Cluster redirections

解决方法：

1)将每个节点下aof、rdb、nodes.conf本地备份文件删除；

2)启动所有redis节点；

3)重新构建集群使用：./redis-trib.rb create --replicas 1 192.168.11.88:7001 192.168.11.88:7002 192.168.11.88:7003 192.168.11.88:7004 192.168.11.88:7005 192.168.11.88:7006