Question

我正在寻找使用redis sentinel的jedis示例。我无法使用jedis设施作为哨兵，我找不到任何好的例子或文件。

Answer 1

Jedis库是一个非常棒的解决方案，不幸的是文档很糟糕。

所以，

@Autowired private JedisSentinelPool pool;

public void mymethod() {
    Jedis jedis = null;
    try {
        jedis = pool.getResource();
        jedis.hset(....
    } catch (JedisException je) {
        throw je;
    } finally {
        if (jedis != null) pool.returnResource(jedis);
    }
}

当我使用Spring时，我需要：

<bean id="redisSentinel" class="redis.clients.jedis.JedisSentinelPool">
<constructor-arg index="0" value="mymaster" />
<constructor-arg index="1">
     <set>  
         <value>hostofsentinel:26379</value>  
    </set> 
</constructor-arg>
<constructor-arg index="2" ref="jedisPoolConfig"/>
</bean>

Answer 2

这是一个例子，当你不使用Spring并需要通过Jedis进行简单连接到由Redis哨兵管理的Redis主/从设置

public class JedisTestSentinelEndpoint {
    private static final String MASTER_NAME = "mymaster";
    public static final String PASSWORD = "foobared";
    private static final Set sentinels;
    static {
        sentinels = new HashSet();
        sentinels.add("mymaster-0.servers.example.com:26379");
        sentinels.add("mymaster-1.servers.example.com:26379");
        sentinels.add("mymaster-2.servers.example.com:26379");
    }

    public JedisTestSentinelEndpoint() {
    }

    private void runTest() throws InterruptedException {
        JedisSentinelPool pool = new JedisSentinelPool(MASTER_NAME, sentinels);
        Jedis jedis = null;
            try {
                printer("Fetching connection from pool");
                jedis = pool.getResource();
                printer("Authenticating...");
                jedis.auth(PASSWORD);
                printer("auth complete...");
                Socket socket = jedis.getClient().getSocket();
                printer("Connected to " + socket.getRemoteSocketAddress());
                printer("Writing...");
                jedis.set("java-key-999", "java-value-999");
                printer("Reading...");
                jedis.get("java-key-999");
            } catch (JedisException e) {
                printer("Connection error of some sort!");
                printer(e.getMessage());
                Thread.sleep(2 * 1000);
            } finally {
                if (jedis != null) {
                    jedis.close();
                }
            }
    }
...
}

来源：This blog post关于连接到Redis Sentinels。

Answer 3

你试过Redisson吗？它提供了哨兵自动主/从/哨兵发现和拓扑更新，你不需要处理连接，数据编码......所有这些都是由Redisson完成的。这是代码示例：

def create_directory(path)
   system 'mkdir', '-p', path
end

寻找与Sentinel的Jedis的例子

3 个答案: