redis 集群搭建

1、测试环境单台机器多个redis实例

[yyapp@LAPP-V1173 redis_6381]$ cat redis.conf  |grep -v  "^#" |grep -v  "^$"
bind 0.0.0.0 
protected-mode yes
port 6381  多个实例需要修改
tcp-backlog 511
timeout 60
tcp-keepalive 300
daemonize yes
supervised no
pidfile /var/run/redis_6381.pid
loglevel notice
logfile ""
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.rdb
dir ./
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
slave-lazy-flush no
appendonly no
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 no
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
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

重新
 sed  -i 's/6390/6391/g' redis.conf

启动： /usr/local/bin/redis-server  /app/redis_6391/redis.conf 

2、redis 生产集群环境搭建

参考文档：https://blog.csdn.net/kjsayn/article/details/53411625

1、安装redis

redis 配置文件


protected-mode no
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile "/app/redis/var/run/redis_6379.pid"
loglevel notice
logfile "/log/redis/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/var/data"
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
slave-lazy-flush no
appendonly no
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 no
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
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


如果是备：

slave-serve-stale-data yes
slave-read-only yes
slave-priority 100
slave-lazy-flush no
client-output-buffer-limit slave 256mb 64mb 60
slaveof 192.168.9.164 6379

　

[yyapp@H-LAPP-V234 conf]$ cat sentinel.conf 
# port 5000
# 别名 IP 端口 2个Sentinel即失效
#
# sentinel monitor mymaster 127.0.0.1 6379 2
# 5000毫秒即可判定主观下线
#
# sentinel down-after-milliseconds mymaster 5000
#
# 不同sentinel 尝试下线redis间隔
# sentinel failover-timeout mymaster 60000
#
# 故障转移时只允许1个从对新的主服务器同步
# 数字越小同步时间越长，数字越大故障转移时越多从不能用
# sentinel parallel-syncs mymaster 1
# --------------------------------------------------------

port 26379
protected-mode no   ###　开启
dir "/app/redis/var/tmp"
logfile "/log/redis/sentinel.log"

# for 6378 redis
sentinel myid 4ddf1e2e9e3427fdc0d556363e7aac3c2b684a5c
sentinel monitor mymaster 192.168.9.164 6379 2
sentinel down-after-milliseconds mymaster 5000
sentinel failover-timeout mymaster 60000

# for 6380 redis
sentinel config-epoch mymaster 7
sentinel leader-epoch mymaster 7
sentinel known-slave mymaster 192.168.9.165 6379
sentinel known-sentinel mymaster 192.168.9.165 26379 9fa02fd4191256c8b7b40716779930294cdf5477
sentinel known-sentinel mymaster 192.168.9.163 26379 078c3fe38b8cb262345130e3a89156198f567b56
sentinel current-epoch 7

 

3、keepalive 配置  检测

global_defs {
notification_email {
xiajq@yonyou.com
}
notification_email_from  xiajq@yonyou.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id KEEPALIVED
}

 

vrrp_script chk_redis {
    script "/app/redis/bin/redis-cli info | grep role:master &> /dev/null"
    interval 2
    weight -5
    fall 3
    rise 2
}