redis主从复制搭建
Posted 站点可靠性工程师
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1、环境
| 系统 | centos7.6 |
|---|---|
| redis版本 | 5.0.8 |
| 主192.168.47.188 | 从192.168.47.189 |
2、分别部署redis
我已经提前准备好了，具体步骤看我另一个博客
3、主从配置文件更改
3.1、在188上更改配置文件（新增的，其他的都没改）
#从服务器连接密码
masterauth "tzh"
#cli连接密码
requirepass 123456
3.2、在189上操作（新增的，其他的都没改）
#配置主服务器的ip 端口
slaveof 192.168.47.188 6379
#配置主服务器的密码
masterauth 123456
4、启动
#启动主服务器
[root@t1 bin]# pwd
/app/redis/bin
[root@t1 bin]# ./redis-server ../conf/redis.conf
#启动主服务器
[root@t2 bin]# pwd
/app/redis/bin
[root@t2 bin]# ./redis-server ../conf/redis.conf
5、验证、测试
5.1、验证
#在主服务器上，输入连接密码
[root@t1 bin]# ./redis-cli
127.0.0.1:6379> AUTH 123456
OK
127.0.0.1:6379> info replication
# Replication
role:master #这是主服务器master
connected_slaves:1 #成功连接slave服务器的数量
slave0:ip=192.168.47.189,port=6379,state=online,offset=1691,lag=1 #slave服务器的信息
master_replid:f60d4b3d8b8f295491af42a3f57a7e59a8f60f7e
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:1691
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:169
#在从服务器连接
127.0.0.1:6379> INFO replication
# Replication
role:slave #这是一台slave服务器
master_host:192.168.47.188 #主服务器端ip地址
master_port:6379 #主服务器端口号
master_link_status:up #连接状态
master_last_io_seconds_ago:7
master_sync_in_progress:0
slave_repl_offset:1943
slave_priority:100
slave_read_only:1 #成为slave服务器后，只读。不能set 只能get
connected_slaves:0
master_replid:f60d4b3d8b8f295491af42a3f57a7e59a8f60f7e
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:1943
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:1943
5.2、测试
#在主服务器上
127.0.0.1:6379> set test 123
OK
#在从服务器上
127.0.0.1:6379> get test
"123"
#说明可以主从搭建成功。有空在更新个哨兵模式，也很简单。在再一台服务器，增加个哨兵就可以了。
6、配置文件展示
#主配置文件
bind 0.0.0.0
protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize yes
supervised no
pidfile /app/redis/pid/redis_6379.pid
loglevel notice
logfile "/app/redis/logs/redis-6379.log"
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump-6379.rdb
dir /app/redis/data
masterauth "tzh"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100
requirepass 123456
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly yes
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
#从配置文件
bind 127.0.0.1
protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize yes
supervised no
pidfile /app/redis/pid/redis_6379.pid
loglevel notice
logfile "/app/redis/logs/redis-6379.log"
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump-6379.rdb
dir /app/redis/data
slaveof 192.168.47.188 6379
masterauth 123456
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly yes
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
7、配置文件详解
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