Redis-3.x集群配置（RedisCluster+SpringBoot+Jedis）

古城微笑少年丶 2022-05-26 07:48 316阅读 0赞

###### Redis-3.x集群配置（RedisCluster+SpringBoot+Jedis） ######

**部署计划**

**部署6个redis节点，为3主3从。**

**编译安装**

**    (所有关于权限问题全部sudo,启动服务 sudo ./redis-server /data/redis/conf/redis.conf,真实环境下,若是以一个较低的权限启动redis,那么就可能产生无法创建日志以及rdb的问题)**

**创建目录**

**    mkdir redis**

**    cd redis**

**下载解压安装包**

**    wget [http://download.redis.io/releases/redis-3.2.4.tar.gz][http_download.redis.io_releases_redis-3.2.4.tar.gz]**

**    tar zxvf redis-3.2.4.tar.gz**

**    cd redis-3.2.4**

**    make**

**    make install PREFIX=/data/redis-3.2.4    //默认安装到/usr/local/bin目录下。这里指定安装目录data/redis-3.2.4**

**    ln -s /data/redis-3.2.4 /data/redis    //软连接**

**    mkdir /data/redis/conf    //创建目录结构**

**    mkdir /data/redis/log**

**    mkdir /data/redis/data**

**    cp /home/redis/redis/redis-3.2.4/redis.conf /data/redis/conf/    //copy配置文件**

**    vim /data/redis/conf/redis.conf**

**redis的配置**

**    protected-mode no    //关闭保护模式**

**    port 6379    //端口**

**    daemonize yes    //守护进程开启,默认服务从后台启动**

**    loglevel verbose    //日志级别**

**    logfile /data/redis/log/redis-6379.log    //日志文件位置**

**    ==redis持久化rdb,AOF相关==**

**    dbfilename dump.rdb    //redis持久化文件名称**

**    dir /data/redis/data/6379    //redis持久化文件路径,默认为当前路径**

**    appendonly yes    //开启AOF**

**    appendfilename "appendonly.aof"    //AOF文件名称**

**    no-appendfsync-on-rewrite yes    //子进程在做rewrite时，主进程不调用fsync（由内核默认调度）**

**    ==REPLICATION==**

**    slave-serve-stale-data yes    //当slave与master断开连接，slave继续提供服务**

**    slave-read-only yes**

**    repl-ping-slave-period 1    //slave ping master的时间间隔，单位为秒**

**    repl-timeout 10    //复制超时，单位为秒，须大于repl-ping-slave-period的值**

**     ==REDIS CLUSTER==**

**    cluster-enabled yes    //开启集群配置**

**    cluster-config-file nodes-6379.conf    //节点配置文件，这个文件是服务启动时自己配置创建的**

**    cluster-node-timeout 5000    //集群中各节点相互通讯时，允许"失联"的最大毫秒数，如果超过没向其它节点汇报成功，就认为该节点已挂。**

**    cluster-slave-validity-factor 0    //将该项设置为0，不管slave节点和master节点间失联多久都会一直尝试failover**

**    repl-ping-slave-period 1**

**其他5台机器配置**

**    相同操作目录可直接远程拷贝**

**    scp -r redis@192.168.101.126:/data/redis/data /data/redis/**

**    scp -r redis@192.168.101.126:/data/redis/conf /data/redis/**

**    scp -r redis@192.168.101.126:/data/redis/log /data/redis/**

**创建和启动redis cluster前的准备工作**

**    yum -y install ruby    //安装ruby    **

**    yum -y install rubygems    //安装rubygems    **

**    wget https://rubygems.org/downloads/redis-3.3.1.gem    //安装redis-3.3.1.gem**

**    gem install -l redis-3.3.1.gem**

**    cp redis-3.2.4/src/redis-trib.rb /data/redis/bin/    //redis-trib.rb是redis官方提供的redis cluster管理工具，使用ruby实现。**

**    ./redis-server /data/redis/conf/redis.conf    //启动6台服务**

**创建redis cluster**

**    redis-trib.rb create --replicas 1 192.168.101.121:6379 192.168.101.199:6379 192.168.101.123:6379 192.168.101.127:6379 192.168.101.125:6379 192.168.101.126:6379**

**    \#redis-trib.rb的create子命令构建  **

**    \#--replicas 则指定了为Redis Cluster中的每个Master节点配备几个Slave节点 **

**进入redis客户端**

**    redis-cli -c -p 6379    //-c进入集群模式**

**    info//查看信息**

**    cluster nodes//查看节点信息**

**    CLUSTER SLOTS//查看插槽信息**

**节点操作**

**    ./redis-trib.rb del-node 192.168.101.121:6379 '2ff326bc9084236ee6540d58d307893662ceff0b'//删除节点**

**    ./redis-trib.rb add-node --slave --master-id 0ecc54ed34cc7e2e1ebca168ab4564b803992094 192.168.101.121:6379 192.168.101.125:6379//添加从节点,添加前需要删除已存在的node.conf,rdb,aof文件**

**    ./redis-trib.rb reshard 192.168.101.121:6379//为新节点分配slot**

**    ./redis-trib.rb check 192.168.101.121:6379    //检查集群运行状态,只要输入任意集群中节点即可，会自动检查所有相关节点。**

**    ./redis-trib.rb fix 192.168.101.121:6379    //修复集群(若node移除了，但是并没有移除node上面的slot，从而导致了slot总数没有达到16384，其实也就是slots分布不正确。所以在删除节点的时候一定要注意删除的是否是Master主节点)。**

**关于集群创建错误**

**集群创建的时候如果没有创建成功,那么需要删除集群节点配置文件,不然无法重新创建集群**

**sudo rm /data/redis-3.2.4/data/6379/nodes-6379.conf**

**如果遇到Waiting for the cluster to join .......................................................**

** >>> Sending CLUSTER MEET messages to join the cluster**

**解决方式**

**sudo ./redis-cli -c -p 6379    //进入客户端**

**CLUSTER MEET <ip> <port> 将 ip 和 port 所指定的节点添加到集群当中。**

**Jedis的配置**

**config文件需要添加**

**github上有这一句，Jedis Cluster 会自动去发现集群中的节点，所以JedisClusterNodes只需要 add一个实例**

`// JedisCluster`

` `

`@Bean`

`public JedisCluster JedisClusterFactory() {`

`LOG.info("JedisCluster创建！！");`

`LOG.info("redis地址：" + host + ":" + port);`

`Set<HostAndPort> jedisClusterNodes = new HashSet<HostAndPort>();`

`JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();`

`jedisPoolConfig.setMaxIdle(maxIdle);`

`jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);`

`jedisClusterNodes.add(new HostAndPort(host, port));`

`JedisCluster jedisCluster = new JedisCluster(jedisClusterNodes, jedisPoolConfig);`

`return jedisCluster;`

`}`

**dao**

`package com.unioncast.db.rdbms.core.dao.commonDBDao.impl;`

` `

`import java.io.IOException;`

`import java.util.ArrayList;`

`import java.util.Iterator;`

`import java.util.List;`

`import java.util.Map;`

`import java.util.Map.Entry;`

`import java.util.UUID;`

` `

`import org.springframework.beans.factory.annotation.Autowired;`

`import org.springframework.stereotype.Repository;`

` `

`import com.unioncast.common.util.JsonUtil;`

`import com.unioncast.db.rdbms.core.dao.commonDBDao.RedisDao;`

` `

`import redis.clients.jedis.JedisCluster;`

` `

`@Repository("redisDao")`

`public class RedisDaoImpl implements RedisDao {`

`@Autowired`

`JedisCluster jedisCluster;`

` `

`@Override`

`public <T> String addByKey(String key, T object) throws IOException {`

`String object2JsonString = JsonUtil.object2JsonString(object);`

`String set = jedisCluster.set(key, object2JsonString);`

`return set;`

`}`

` `

`@Override`

`public <T> String add(T object) throws IOException {`

`String uuid = UUID.randomUUID().toString().trim().replaceAll("-", "");`

`String object2JsonString = JsonUtil.object2JsonString(object);`

`jedisCluster.set(uuid, object2JsonString);`

`return uuid;`

`}`

` `

`@Override`

`public Object getObject(String key) throws IOException {`

`String string = jedisCluster.get(key);`

`Object json2Object = JsonUtil.json2Object(string, Object.class);`

`return json2Object;`

`}`

` `

`@Override`

`public <T> List<String> addList(List<T> list) throws IOException {`

`List<String> sum = new ArrayList<>(70);`

`String uuid = null;`

`String str = null;`

`for (int i = 0; i < list.size(); i++) {`

`uuid = UUID.randomUUID().toString().trim().replaceAll("-", "");`

`str = JsonUtil.object2JsonString(list.get(i));`

`jedisCluster.set(uuid, str);`

`sum.set(i, uuid);`

`}`

`return sum;`

`}`

` `

`@Override`

`public <T> String addListKey(List<String> strList, List<T> list) throws IOException {`

`return null;`

`}`

` `

`@Override`

`public <T> Long addListKey(Map<String, T> map) throws IOException {`

`Long sum = (long) 0;`

`String str = null;`

`Iterator<Entry<String, T>> iterator = map.entrySet().iterator();`

`while (iterator.hasNext()) {`

`Entry<String, T> entry = (Entry<String, T>) iterator.next();`

`String key = entry.getKey();`

`T object = entry.getValue();`

`str = JsonUtil.object2JsonString(object);`

`jedisCluster.set(key, str);`

`sum = sum + 1;`

`}`

` `

`return sum;`

`}`

` `

`@Override`

`public Long deleteByKey(String key) throws IOException {`

`Long del = jedisCluster.del(key);`

` `

`return del;`

`}`

` `

`@Override`

`public Long batchDelete(List<String> strList) throws IOException {`

`Long sum = (long) 0;`

`Long del = (long) 0;`

`for (int i = 0; i < strList.size(); i++) {`

`del = jedisCluster.del(strList.get(i));`

`sum = sum + del;`

`}`

` `

`return sum;`

`}`

` `

`}`

**config**

`package com.unioncast.db.config;`

` `

`import java.lang.reflect.Method;`

`import java.util.HashSet;`

`import java.util.Set;`

` `

`import org.apache.logging.log4j.LogManager;`

`import org.apache.logging.log4j.Logger;`

`import org.springframework.beans.factory.annotation.Value;`

`import org.springframework.cache.CacheManager;`

`import org.springframework.cache.annotation.CachingConfigurerSupport;`

`import org.springframework.cache.annotation.EnableCaching;`

`import org.springframework.cache.interceptor.KeyGenerator;`

`import org.springframework.context.annotation.Bean;`

`import org.springframework.context.annotation.Configuration;`

`import org.springframework.context.annotation.PropertySource;`

`import org.springframework.data.redis.cache.RedisCacheManager;`

`import org.springframework.data.redis.connection.RedisConnectionFactory;`

`import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;`

`import org.springframework.data.redis.core.RedisTemplate;`

`import org.springframework.data.redis.core.StringRedisTemplate;`

`import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;`

` `

`import com.fasterxml.jackson.annotation.JsonAutoDetect;`

`import com.fasterxml.jackson.annotation.PropertyAccessor;`

`import com.fasterxml.jackson.databind.ObjectMapper;`

` `

`import redis.clients.jedis.HostAndPort;`

`import redis.clients.jedis.JedisCluster;`

`import redis.clients.jedis.JedisPool;`

`import redis.clients.jedis.JedisPoolConfig;`

` `

`@Configuration`

`@PropertySource(value = "classpath:/redis.properties")`

`@EnableCaching`

`public class RedisConfig extends CachingConfigurerSupport {`

`// @Value("${spring.redis.host}")`

`// private String host;`

`// @Value("${spring.redis.port}")`

`// private int port;`

`// @Value("${spring.redis.timeout}")`

`// private int timeout;`

`private static final Logger LOG = LogManager.getLogger(RedisConfig.class);`

` `

`@Value("${spring.redis.host}")`

`private String host;`

` `

`@Value("${spring.redis.port}")`

`private int port;`

` `

`@Value("${spring.redis.timeout}")`

`private int timeout;`

` `

`@Value("${spring.redis.pool.max-idle}")`

`private int maxIdle;`

` `

`@Value("${spring.redis.pool.max-wait}")`

`private long maxWaitMillis;`

` `

`/*`

`* @Value("${spring.redis.password}") private String password;`

`*/`

` `

`// Jedis连接池`

`@Bean`

`public JedisPool redisPoolFactory() {`

`LOG.info("JedisPool注入成功！！");`

`LOG.info("redis地址：" + host + ":" + port);`

`JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();`

`jedisPoolConfig.setMaxIdle(maxIdle);`

`jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);`

` `

`// JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port,`

`// timeout, password);`

`JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port, timeout);`

`return jedisPool;`

`}`

`// JedisCluster`

` `

`@Bean`

`public JedisCluster JedisClusterFactory() {`

`LOG.info("JedisCluster创建！！");`

`LOG.info("redis地址：" + host + ":" + port);`

`Set<HostAndPort> jedisClusterNodes = new HashSet<HostAndPort>();`

`JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();`

`jedisPoolConfig.setMaxIdle(maxIdle);`

`jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);`

`jedisClusterNodes.add(new HostAndPort(host, port));`

`JedisCluster jedisCluster = new JedisCluster(jedisClusterNodes, jedisPoolConfig);`

`return jedisCluster;`

`}`

` `

`@Bean`

`public KeyGenerator wiselyKeyGenerator() {`

`return new KeyGenerator() {`

`@Override`

`public Object generate(Object target, Method method, Object... params) {`

`StringBuilder sb = new StringBuilder();`

`sb.append(target.getClass().getName());`

`sb.append(method.getName());`

`for (Object obj : params) {`

`sb.append(obj.toString());`

`}`

`return sb.toString();`

`}`

`};`

`}`

` `

`@Bean`

`public JedisConnectionFactory redisConnectionFactory() {`

`JedisConnectionFactory factory = new JedisConnectionFactory();`

`factory.setHostName(host);`

`factory.setPort(port);`

`factory.setTimeout(timeout); // 设置连接超时时间`

`return factory;`

`}`

` `

`@Bean`

`public CacheManager cacheManager(RedisTemplate<?, ?> redisTemplate) {`

`RedisCacheManager cacheManager = new RedisCacheManager(redisTemplate);`

`// Number of seconds before expiration. Defaults to unlimited (0)`

`cacheManager.setDefaultExpiration(10); // 设置key-value超时时间`

`return cacheManager;`

`}`

` `

`@Bean`

`public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {`

`StringRedisTemplate template = new StringRedisTemplate(factory);`

`setSerializer(template); // 设置序列化工具，这样ReportBean不需要实现Serializable接口`

`template.afterPropertiesSet();`

`return template;`

`}`

` `

`private void setSerializer(StringRedisTemplate template) {`

`Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(`

`Object.class);`

`ObjectMapper om = new ObjectMapper();`

`om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);`

`om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);`

`jackson2JsonRedisSerializer.setObjectMapper(om);`

`template.setValueSerializer(jackson2JsonRedisSerializer);`

`}`

[http_download.redis.io_releases_redis-3.2.4.tar.gz]: http://download.redis.io/releases/redis-3.2.4.tar.gz

Redis-3.x集群配置（RedisCluster+SpringBoot+Jedis）

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