redis(三) 集群模式---主从模式（master slave ）

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已于 2024-06-27 01:22:04 修改 · 511 阅读

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#redis

于 2024-06-04 13:49:59 首次发布

主从模式

版本：redis 7.0.12
1.编译

make
make test
master 节点

mv redis-7.0.12 redis-7.0.12_m_s
cp redis.conf redis.conf.bak
# 后台运行
daemonize yes   
# 外部可访问
bind 0.0.0.0
# 服务端口
port 6379
# dump 文件位置
dbfilename dump.rdb
# 进程id
pidfile /home/czh/redis_m_s/redis_6379.pid
logfile "/home/czh/redis_m_s/redis.log"
# masterauth 123456
# 配置密码
requirepass 123456
# aof文件
appendfilename "appendonly.aof"
# aof文件路径
appenddirname "appenddirname"

2.启动master
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修改
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启动成功
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3.从节点配置
配置
bind 0.0.0.0
port 6379
daemonize yes
pidfile /home/czh/redis_m_s/redis_6379.pid
logfile “/home/czh/redis_m_s/redis.log”
dir /home/czh/redis_m_s/
replicaof 192.168.0.231 6379
masterauth 123456
replica-read-only yes
requirepass 123456
appendfilename “appendonly.aof”
appenddirname “appendonlydir”
appendfsync everysec
4.启动 232 233 从节点
./redis-server redis.conf
日志
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5.集群信息
info 查看集群信息

OK
127.0.0.1:6379> info
# Server
redis_version:7.0.12
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:6e047769ded62547
redis_mode:standalone
os:Linux 5.15.0-107-generic x86_64
arch_bits:64
monotonic_clock:POSIX clock_gettime
multiplexing_api:epoll
atomicvar_api:c11-builtin
gcc_version:11.4.0
process_id:2487
process_supervised:no
run_id:2e8bd37e9ebe61e8e1e1bc647e5e7b8276c7681c
tcp_port:6379
server_time_usec:1716197973719948
uptime_in_seconds:9323
uptime_in_days:0
hz:10
configured_hz:10
lru_clock:4921941
executable:/home/czh/redis-7.0.12/./redis-server
config_file:/home/czh/redis-7.0.12/./redis.conf
io_threads_active:0

# Clients
connected_clients:2
cluster_connections:0
maxclients:10000
client_recent_max_input_buffer:24
client_recent_max_output_buffer:0
blocked_clients:0
tracking_clients:0
clients_in_timeout_table:0

# Memory
used_memory:957600
used_memory_human:935.16K
used_memory_rss:5738496
used_memory_rss_human:5.47M
used_memory_peak:975680
used_memory_peak_human:952.81K
used_memory_peak_perc:98.15%
used_memory_overhead:883156
used_memory_startup:858848
used_memory_dataset:74444
used_memory_dataset_perc:75.38%
allocator_allocated:990536
allocator_active:1310720
allocator_resident:3891200
total_system_memory:4064755712
total_system_memory_human:3.79G
used_memory_lua:31744
used_memory_vm_eval:31744
used_memory_lua_human:31.00K
used_memory_scripts_eval:0
number_of_cached_scripts:0
number_of_functions:0
number_of_libraries:0
used_memory_vm_functions:32768
used_memory_vm_total:64512
used_memory_vm_total_human:63.00K
used_memory_functions:184
used_memory_scripts:184
used_memory_scripts_human:184B
maxmemory:0
maxmemory_human:0B
maxmemory_policy:noeviction
allocator_frag_ratio:1.32
allocator_frag_bytes:320184
allocator_rss_ratio:2.97
allocator_rss_bytes:2580480
rss_overhead_ratio:1.47
rss_overhead_bytes:1847296
mem_fragmentation_ratio:6.14
mem_fragmentation_bytes:4803784
mem_not_counted_for_evict:0
mem_replication_backlog:20508
mem_total_replication_buffers:20504
mem_clients_slaves:0
mem_clients_normal:3616
mem_cluster_links:0
mem_aof_buffer:0
mem_allocator:jemalloc-5.2.1
active_defrag_running:0
lazyfree_pending_objects:0
lazyfreed_objects:0

# Persistence
loading:0
async_loading:0
current_cow_peak:0
current_cow_size:0
current_cow_size_age:0
current_fork_perc:0.00
current_save_keys_processed:0
current_save_keys_total:0
rdb_changes_since_last_save:0
rdb_bgsave_in_progress:0
rdb_last_save_time:1716188650
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:-1
rdb_current_bgsave_time_sec:-1
rdb_saves:0
rdb_last_cow_size:0
rdb_last_load_keys_expired:0
rdb_last_load_keys_loaded:0
aof_enabled:0
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
aof_last_rewrite_time_sec:-1
aof_current_rewrite_time_sec:-1
aof_last_bgrewrite_status:ok
aof_rewrites:0
aof_rewrites_consecutive_failures:0
aof_last_write_status:ok
aof_last_cow_size:0
module_fork_in_progress:0
module_fork_last_cow_size:0

# Stats
total_connections_received:1
total_commands_processed:926
instantaneous_ops_per_sec:0
total_net_input_bytes:13371
total_net_output_bytes:344163
total_net_repl_input_bytes:13195
total_net_repl_output_bytes:0
instantaneous_input_kbps:0.00
instantaneous_output_kbps:0.02
instantaneous_input_repl_kbps:0.00
instantaneous_output_repl_kbps:0.00
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
expired_stale_perc:0.00
expired_time_cap_reached_count:0
expire_cycle_cpu_milliseconds:0
evicted_keys:0
evicted_clients:0
total_eviction_exceeded_time:0
current_eviction_exceeded_time:0
keyspace_hits:0
keyspace_misses:0
pubsub_channels:0
pubsub_patterns:0
pubsubshard_channels:0
latest_fork_usec:0
total_forks:0
migrate_cached_sockets:0
slave_expires_tracked_keys:0
active_defrag_hits:0
active_defrag_misses:0
active_defrag_key_hits:0
active_defrag_key_misses:0
total_active_defrag_time:0
current_active_defrag_time:0
tracking_total_keys:0
tracking_total_items:0
tracking_total_prefixes:0
unexpected_error_replies:0
total_error_replies:7
dump_payload_sanitizations:0
total_reads_processed:933
total_writes_processed:9263
io_threaded_reads_processed:0
io_threaded_writes_processed:0
reply_buffer_shrinks:2
reply_buffer_expands:0

# Replication
role:slave
master_host:192.168.0.231
master_port:6379
master_link_status:up
master_last_io_seconds_ago:9
master_sync_in_progress:0
slave_read_repl_offset:12978
slave_repl_offset:12978
slave_priority:100
slave_read_only:1
replica_announced:1
connected_slaves:0
master_failover_state:no-failover
master_replid:1aa927fe638024e8267df28430f04908ebefbf63
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:12978
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:43
repl_backlog_histlen:12936

# CPU
used_cpu_sys:19.811815
used_cpu_user:3.080618
used_cpu_sys_children:0.000000
used_cpu_user_children:0.000000
used_cpu_sys_main_thread:19.806438
used_cpu_user_main_thread:2.996082

# Modules

# Errorstats
errorstat_ERR:count=3
errorstat_NOAUTH:count=3
errorstat_WRONGPASS:count=1

# Cluster
cluster_enabled:0

# Keyspace

连接例子：

（1）Redisson 连接

pom.xml

<!-- https://mvnrepository.com/artifact/org.redisson/redisson -->
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.30.0</version>
        </dependency>

MasterSlaveServersRedissonConfig.java

package com.cjs.redisson.example.cjsredissonexample.config;

import org.redisson.api.RedissonClient;
import org.redisson.config.MasterSlaveServersConfig;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Bean;
import org.redisson.config.Config;
import org.redisson.Redisson;

/**
 * 主从配置
 */
@Configuration
public class MasterSlaveServersRedissonConfig {
   
   
    @Bean("redissonClient")
    public RedissonClient redissonClient() {
   
   

        Config config = new Config();

        // 设置主节点信息
        MasterSlaveServersConfig serverConfig = config.useMasterSlaveServers()
         // 主节点地址和端口
        .setMasterAddress("redis://192.168.0.231:6379")
        // 主节点密码
        .setPassword("123456"); 

        // 可以添加一个或多个从节点
        serverConfig.addSlaveAddress("redis://192.168.0.232:6379", 
        "redis://192.168.0.231:6379");

        // 创建RedissonClient实例
        RedissonClient redissonClient = Redisson.create(config);

        return redissonClient;
    }
}

(2) jredis 连接
pom.xml

<!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>5.2.0-beta2</version>
</dependency>

@Bean
public JedisPoolConfig jedisPoolConfig() {
   
   
    JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
    jedisPoolConfig.setMaxTotal(10);
    jedisPoolConfig.setMaxIdle(5);
    jedisPoolConfig.setMinIdle(1);
    jedisPoolConfig.setMaxWaitMillis(3000);
    jedisPoolConfig.setTestOnBorrow(true);
    return jedisPoolConfig;
}

@Bean
public JedisConnectionFactory jedisConnectionFactory(JedisPoolConfig jedisPoolConfig) {
   
   
    JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory();
    jed

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