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我試圖在集羣模式下設置Redis,當我嘗試使用Jedis API連接到Redis時,我在下面看到異常。Docker中的Redis安裝集羣模式問題(Windows 7)
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)
我使用下面的命令來啓動Redis的
$ docker run -v /d/redis.conf:/usr/bin/redis.conf --name myredis redis redis-server /usr/bin/redis.conf
而且我簡單redis.conf看起來像下面。
port 6379
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
appendonly yes
以下是redis啓動日誌。
$ 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
下面是簡單的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);
}
}
不太確定這裏發生了什麼問題,並會很感激這方面的幫助。
現在我看到這個異常「在線程異常‘主要’redis.clients.jedis.exceptions.JedisDataException時:錯誤此實例已羣集支持禁用「 – leo11