redis 哨兵模式
redis-4.0.8 一主两从,3哨兵的构建方式:
搭建是在一台虚拟主机上的,使用的不同端口:
主节点:192.168.1.235:6379
从节点1:192.168.1.235:6380
从节点2:192.168.1.235:6381
哨兵1:192.168.1.235:26379
哨兵2:192.168.1.235:26380
哨兵3:192.168.1.235:26381
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1.主节点:192.168.1.235:6379配置文件:
#主redis配置
bind 0.0.0.0
protected-mode no
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize yes
supervised no
pidfile "/usr/local/redis-4.0.8/conf/ms/pid/redis_6379.pid"
loglevel notice
logfile "/usr/local/redis-4.0.8/conf/log/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.rdb"
dir "/usr/local/redis-4.0.8/conf/ms"
masterauth "123456"
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
requirepass "123456"
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
# Generated by CONFIG REWRITE
2.两从的配置:除了端口，log等配置不一样，其他相同,
区分主从的标志是:
slaveof 192.168.1.235 6379
#从redis配置 bind 0.0.0.0 protected-mode no port 6381 tcp-backlog 511 timeout 0 tcp-keepalive 300 daemonize yes supervised no pidfile "/usr/local/redis-4.0.8/conf/ms/pid/redis_6381.pid" loglevel notice logfile "/usr/local/redis-4.0.8/conf/log/redis_6381.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.rdb" dir "/usr/local/redis-4.0.8/conf/ms" masterauth "123456" 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 requirepass "123456" 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 slaveof 192.168.1.235 6379
3.三个哨兵的配置是大体是一样的，除了端口,log不一样:
#哨兵的配置
protected-mode no
port 26380
daemonize yes
dir "/tmp"
logfile "/usr/local/redis-4.0.8/conf/log/sentinel_26380.log"
sentinel monitor mymaster 192.168.1.235 6379 2
sentinel down-after-milliseconds mymaster 5000
sentinel failover-timeout mymaster 10000
sentinel auth-pass mymaster 123456
4.问题：
1.由于搭建redis的是要对外访问的，所以bind的ip的时候不要使用127.0.0.1，要使用对外的ip
a.不管是主从中的bind 配置:bind 0.0.0.0
还是slaveof 后面的配置：slaveof 192.168.1.235 6379，要配置对外的ip
b.在哨兵配置中的sentinel monitor mymaster 192.168.1.235 6379 2 要配置对外的ip
2.redis4版本的中主,从,哨兵中都要设置protected-mode为no,不然哨兵，不能failover：
protected-mode no