Docker中的Redis安装集群模式问题（Windows 7）

Question

我试图在集群模式下设置Redis，当我尝试使用Jedis API连接到Redis时，我在下面看到异常。

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.set(JedisCluster.java:103) 
    at com.redis.main.Main.main(Main.java:18) 

我使用下面的命令来启动Redis的

$ docker run -v /d/redis.conf:/usr/bin/redis.conf --name myredis redis redis-server /usr/bin/redis.conf 

而且我简单redis.conf看起来像下面。

port 6379 
cluster-enabled yes 
cluster-config-file nodes.conf 
cluster-node-timeout 5000 
appendonly yes 

以下是redis启动日志。

$ docker run -v /d/redis.conf:/usr/bin/redis.conf --name myredis redis redis-se 
rver /usr/bin/redis.conf 
1:C 11 Oct 18:06:01.657 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 
1:C 11 Oct 18:06:01.663 # Redis version=4.0.2, bits=64, commit=00000000, modifi 
d=0, pid=1, just started 
1:C 11 Oct 18:06:01.664 # Configuration loaded 
1:M 11 Oct 18:06:01.685 * Running mode=standalone, port=6379. 
1:M 11 Oct 18:06:01.690 # WARNING: The TCP backlog setting of 511 cannot be enf 
rced because /proc/sys/net/core/somaxconn is set to the lower value of 128. 
1:M 11 Oct 18:06:01.692 # Server initialized 
1:M 11 Oct 18:06:01.696 # WARNING overcommit_memory is set to 0! Background sav 
may fail under low memory condition. To fix this issue add 'vm.overcommit_memo 
y = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overco 
mit_memory=1' for this to take effect. 
1:M 11 Oct 18:06:01.697 # WARNING you have Transparent Huge Pages (THP) support 
enabled in your kernel. This will create latency and memory usage issues with R 
dis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent 
hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain 
he setting after a reboot. Redis must be restarted after THP is disabled. 
1:M 11 Oct 18:06:01.700 * Ready to accept connections 

下面是简单的java程序。

public class Main { 
    public static void main(String[] args) { 
     Set<HostAndPort> jedisClusterNodes = new HashSet<HostAndPort>(); 
     jedisClusterNodes.add(new HostAndPort("127.0.0.1", 6379)); 
     JedisCluster jc = new JedisCluster(jedisClusterNodes); 

     //Jedis jc = new Jedis("192.168.99.100"); 

     jc.set("prime", "1 is prime"); 
     String keyVal = jc.get("prime"); 
     System.out.println(keyVal); 
    } 
} 

不太确定这里发生了什么问题，并会很感激这方面的帮助。

Answer 1

你需要暴露的端口开始Redis的容器

docker run -v /d/redis.conf:/usr/bin/redis.conf -p 6379:6379 --name myredis redis redis-server /usr/bin/redis.conf