Redis-3.0.7 集群

安装redis

下载redis-3.0.7tar.gz
tar -zxvf redis-3.0.7tar.gz
cd redis-3.0.7
make过程可能报错，原因是缺少包，按提示安装即可
make
cp /home/redis/app/redis-3.0.7/src/redis-trib.rb /usr/local/bin
cp /home/redis/app/redis-3.0.7/src/redis-server /usr/local/bin
cp /home/redis/app/redis-3.0.7/src/redis-cli /usr/local/bin

/opt目录下建立redis目录
cd /opt
mkdir redis
cd reids
mkdir conf
mkdir data
mkdir logs

建立配置文件

1. 新建redis-common.conf

#GENERAL  daemonize yes  tcp-backlog 511  timeout 0  tcp-keepalive 0  loglevel notice  databases 16  dir /opt/redis/data  slave-serve-stale-data yes  #slave只读  slave-read-only yes  #not use default  repl-disable-tcp-nodelay yes  slave-priority 100  #打开aof持久化  appendonly yes  #每秒一次aof写  appendfsync everysec  #关闭在aof rewrite的时候对新的写操作进行fsync  no-appendfsync-on-rewrite yes  auto-aof-rewrite-min-size 64mb  lua-time-limit 5000  #打开redis集群  cluster-enabled yes  #节点互连超时的阀值  cluster-node-timeout 15000  cluster-migration-barrier 1  slowlog-log-slower-than 10000  slowlog-max-len 128  notify-keyspace-events ""  hash-max-ziplist-entries 512  hash-max-ziplist-value 64  list-max-ziplist-entries 512  list-max-ziplist-value 64  set-max-intset-entries 512  zset-max-ziplist-entries 128  zset-max-ziplist-value 64  activerehashing yes  client-output-buffer-limit normal 0 0 0  client-output-buffer-limit slave 256mb 64mb 60  client-output-buffer-limit pubsub 32mb 8mb 60  hz 10  aof-rewrite-incremental-fsync yes  

1. conf目录下建立6个实例配置文件：

redis@ubuntu:/opt/redis/conf$ lltotal 32drwxrwxr-x 2 redis redis 4096 Jul 22 16:36 ./drwxr-xr-x 5 redis redis 4096 Jul 26 13:22 ../-rw-rw-r-- 1 redis redis  976 Jul 22 11:28 redis-6379.conf-rw-rw-r-- 1 redis redis 1002 Jul 22 16:31 redis-6380.conf-rw-rw-r-- 1 redis redis  973 Jul 22 16:31 redis-6381.conf-rw-rw-r-- 1 redis redis  976 Jul 22 16:35 redis-7379.conf-rw-rw-r-- 1 redis redis 1002 Jul 22 16:36 redis-7380.conf-rw-rw-r-- 1 redis redis  973 Jul 22 16:36 redis-7381.conf

• redis-6379.conf配置如下，其他conf只是端口不一致

#包含通用配置  include /opt/redis/redis-common.conf  #监听tcp端口  port 6379  #最大可用内存  maxmemory 100m  #内存耗尽时采用的淘汰策略:  # volatile-lru -> remove the key with an expire set using an LRU algorithm  # allkeys-lru -> remove any key accordingly to the LRU algorithm  # volatile-random -> remove a random key with an expire set  # allkeys-random -> remove a random key, any key  # volatile-ttl -> remove the key with the nearest expire time (minor TTL)  # noeviction -> don't expire at all, just return an error on write operations  maxmemory-policy allkeys-lru  #aof存储文件  appendfilename "appendonly-6379.aof"  #rdb文件,只用于动态添加slave过程  dbfilename dump-6379.rdb  #cluster配置文件(启动自动生成)  cluster-config-file nodes-6379.conf  #部署在同一机器的redis实例，防止瞬间fork所有redis进程做rewrite,占用大量内存</span>  auto-aof-rewrite-percentage 80-100  

编写6个实例启动脚本start_redis_cluster.sh

start_redis_cluster.sh代码如下：

redis-server /opt/redis/conf/redis-6379.conf > /opt/redis/logs/redis-6379.log 2>&1 &  redis-server /opt/redis/conf/redis-6380.conf > /opt/redis/logs/redis-6380.log 2>&1 & redis-server /opt/redis/conf/redis-6381.conf > /opt/redis/logs/redis-6381.log 2>&1 & redis-server /opt/redis/conf/redis-7379.conf > /opt/redis/logs/redis-7379.log 2>&1 &redis-server /opt/redis/conf/redis-7380.conf > /opt/redis/logs/redis-7380.log 2>&1 &redis-server /opt/redis/conf/redis-7381.conf > /opt/redis/logs/redis-7381.log 2>&1 &

编写集群启动脚本start_redis_trib.sh

start_redis_trib.sh代码如下：

redis-trib.rb create --replicas 1  192.168.114.129:6379 192.168.114.129:6380 192.168.114.129:6381 192.168.114.129:7379 192.168.114.129:7380 192.168.114.129:7381 

注意此处要写具体实际IP与端口，不能写127.0.0.1，不然不能被非本机应用调用。

启动集群

依次执行：
start_redis_cluster.sh
start_redis_trib.sh

JAVA调用redis集群

pom.xml

        <dependency>            <groupId>redis.clients</groupId>            <artifactId>jedis</artifactId>            <version>2.9.0</version>        </dependency>

Spring配置文件

<!-- 扫描properties文件 -->    <context:property-placeholder ignore-resource-not-found="false" location="classpath*:*.properties" />    <description>Redis配置</description>    <!-- redis连接池的配置 -->    <bean name="genericObjectPoolConfig" class="org.apache.commons.pool2.impl.GenericObjectPoolConfig">        <property name="maxTotal" value="${redis.pool.maxTotal}" />        <property name="maxIdle" value="${redis.pool.maxIdle}" />        <property name="minIdle" value="${redis.pool.minIdle}" />        <property name="maxWaitMillis" value="${redis.pool.maxWaitMillis}" />          <!-- <property name="testOnBorrow" value="${redis.pool.testOnBorrow}" /> -->        <!-- 有如下两个参数，初始化genericObjectPoolConfig会报错，（没有日志提示，应该为bug），导致后续从pool获取连接时报错        <property name="testOnReturn" value="${redis.pool.testOnReturn}" />        <property name="testWhileIdle" value="${redis.pool.testWhileIdle" /> -->    </bean>    <!-- jedisCluster实现服务端集群 -->    <bean id="jedisCluster" class="com.demo.redis.cluster.JedisClusterFactory">        <property name="addressConfig" value="classpath:connect-redis.properties" />        <property name="addressKeyPrefix" value="address" />   <!-- 属性文件里 key的前缀 -->        <property name="timeout" value="0" />        <property name="maxRedirections" value="1" />        <property name="genericObjectPoolConfig" ref="genericObjectPoolConfig" />    </bean>

connect-redis.properties配置文件（据说写一个地址就行）

address1=192.168.114.129:6379address2=192.168.114.129:6380address3=192.168.114.129:6381##address4=192.168.114.129:7379##address5=192.168.114.129:7381##address6=192.168.114.129:7382

Java代码

JedisClusterFactory代码（来源于网络）

package com.demo.redis.cluster;import java.util.HashSet;import java.util.Properties;import java.util.Set;import java.util.regex.Pattern;import org.apache.commons.pool2.impl.GenericObjectPoolConfig;import org.springframework.beans.factory.FactoryBean;import org.springframework.beans.factory.InitializingBean;import org.springframework.core.io.Resource;import redis.clients.jedis.HostAndPort;import redis.clients.jedis.JedisCluster;public class JedisClusterFactory implements FactoryBean<JedisCluster>, InitializingBean {    private Resource addressConfig;    private String addressKeyPrefix ;    private JedisCluster jedisCluster;    private Integer timeout;    private Integer maxRedirections;    private GenericObjectPoolConfig genericObjectPoolConfig;    private Pattern p = Pattern.compile("^.+[:]\\d{1,5}\\s*$");    @Override    public JedisCluster getObject() throws Exception {        return jedisCluster;    }    @Override    public Class<? extends JedisCluster> getObjectType() {        return (this.jedisCluster != null ? this.jedisCluster.getClass() : JedisCluster.class);    }    @Override    public boolean isSingleton() {        return true;    }    private Set<HostAndPort> parseHostAndPort() throws Exception {        try {            Properties prop = new Properties();            prop.load(this.addressConfig.getInputStream());            Set<HostAndPort> haps = new HashSet<HostAndPort>();            for (Object key : prop.keySet()) {                if (!((String) key).startsWith(addressKeyPrefix)) {                    continue;                }                String val = (String) prop.get(key);                boolean isIpPort = p.matcher(val).matches();                if (!isIpPort) {                    throw new IllegalArgumentException("ip 或 port 不合法");                }                String[] ipAndPort = val.split(":");                HostAndPort hap = new HostAndPort(ipAndPort[0], Integer.parseInt(ipAndPort[1]));                haps.add(hap);            }            return haps;        } catch (IllegalArgumentException ex) {            throw ex;        } catch (Exception ex) {            throw new Exception("解析 jedis 配置文件失败", ex);        }    }    @Override    public void afterPropertiesSet() throws Exception {        Set<HostAndPort> haps = this.parseHostAndPort();        jedisCluster = new JedisCluster(haps, timeout, maxRedirections,genericObjectPoolConfig);    }    public void setAddressConfig(Resource addressConfig) {        this.addressConfig = addressConfig;    }    public void setTimeout(int timeout) {        this.timeout = timeout;    }    public void setMaxRedirections(int maxRedirections) {        this.maxRedirections = maxRedirections;    }    public void setAddressKeyPrefix(String addressKeyPrefix) {        this.addressKeyPrefix = addressKeyPrefix;    }    public void setGenericObjectPoolConfig(GenericObjectPoolConfig genericObjectPoolConfig) {        this.genericObjectPoolConfig = genericObjectPoolConfig;    }}

RedisTest代码

package com.demo.redis;import org.junit.Test;import org.junit.runner.RunWith;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import org.springframework.test.context.transaction.TransactionConfiguration;import redis.clients.jedis.JedisCluster;@RunWith(SpringJUnit4ClassRunner.class)@TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = false)@ContextConfiguration({ "classpath*:applicationContext.xml","classpath*:redis-cluster.xml"  })public class RedisTest {    private static final Logger log = LoggerFactory.getLogger(RedisTest.class);    @Autowired    private JedisCluster jedisCluster;    @Test    public void testCluster(){        log.debug("start...");        int i=0;        while(i<=10000){            jedisCluster.set(i+"", i+"");            log.debug(jedisCluster.get(i+""));            i++;        }        log.debug("...end!!!");    }}