Redis主从加Sentinel模式部署
总体部署
- 一主二从三哨兵
- ip地址分配分别为
- 主 127.0.0.1:6379
- 从 127.0.0.1:6389
- 从 127.0.0.1:6399
- 哨兵 127.0.0.1:26379
- 哨兵 127.0.0.1:26389
- 哨兵 127.0.0.1:26399
一主二从的配置文件 redis.conf设置
主的保持默认的不变
二个从的分别打开配置文件
找到设置端口的地方
分别设置为 6389 和6399
# Accept connections on the specified port, default is 6379 (IANA #815344). # If port 0 is specified Redis will not listen on a TCP socket. port 6389
# Accept connections on the specified port, default is 6379 (IANA #815344). # If port 0 is specified Redis will not listen on a TCP socket. port 6399
然后都在
# slaveof <masterip> <masterport>
一行的下面增加
slaveof 127.0.0.1 6379
这样主从的配置就ok了
三个哨兵的sentinel.conf配置
分别打开sentinel.conf配置文件
修改他们的端口为
26379 26389 26399
sentinel monitor mymaster 127.0.0.1 6379 2
配置中的这一行表示 我们要监视的主的ip和端口，mymaster是主的名称，因为我们的主是127.0.0.1:6379,所以三个哨兵中的这个地方都不用修改。
然后所有的配置就ok了，本地测试环境貌似需要改动的地方不多。
启动
- 主
进入src目录
./redis-server ../redis.conf
25496:M 18 Feb 21:43:12.616 * Increased maximum number of open files to 10032 (it was originally set to 4864). _._ _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 3.2.8 (00000000/0) 64 bit .-`` .-```. ```\/ _.,_ ''-._ ( ' , .-` | `, ) Running in standalone mode |`-._`-...-` __...-.``-._|'` _.-'| Port: 6379 | `-._ `._ / _.-' | PID: 25496 `-._ `-._ `-./ _.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | http://redis.io `-._ `-._`-.__.-'_.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | `-._ `-._`-.__.-'_.-' _.-' `-._ `-.__.-' _.-' `-._ _.-' `-.__.-' 25496:M 18 Feb 21:43:12.618 # Server started, Redis version 3.2.8 25496:M 18 Feb 21:43:12.618 * DB loaded from disk: 0.000 seconds 25496:M 18 Feb 21:43:12.618 * The server is now ready to accept connections on port 6379 25496:M 18 Feb 21:43:21.196 * Slave 127.0.0.1:6389 asks for synchronization 25496:M 18 Feb 21:43:21.196 * Full resync requested by slave 127.0.0.1:6389 25496:M 18 Feb 21:43:21.196 * Starting BGSAVE for SYNC with target: disk 25496:M 18 Feb 21:43:21.197 * Background saving started by pid 25498 25498:C 18 Feb 21:43:21.198 * DB saved on disk 25496:M 18 Feb 21:43:21.198 * Background saving terminated with success 25496:M 18 Feb 21:43:21.198 * Synchronization with slave 127.0.0.1:6389 succeeded 25496:M 18 Feb 21:43:28.979 * Slave 127.0.0.1:6399 asks for synchronization 25496:M 18 Feb 21:43:28.979 * Full resync requested by slave 127.0.0.1:6399 25496:M 18 Feb 21:43:28.979 * Starting BGSAVE for SYNC with target: disk 25496:M 18 Feb 21:43:28.980 * Background saving started by pid 25500 25500:C 18 Feb 21:43:28.986 * DB saved on disk 25496:M 18 Feb 21:43:29.044 * Background saving terminated with success 25496:M 18 Feb 21:43:29.044 * Synchronization with slave 127.0.0.1:6399 succeeded
- 从1
进入src目录
./redis-server ../redis.conf
25497:S 18 Feb 21:43:21.194 * Increased maximum number of open files to 10032 (it was originally set to 4864). _._ _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 3.2.8 (00000000/0) 64 bit .-`` .-```. ```\/ _.,_ ''-._ ( ' , .-` | `, ) Running in standalone mode |`-._`-...-` __...-.``-._|'` _.-'| Port: 6389 | `-._ `._ / _.-' | PID: 25497 `-._ `-._ `-./ _.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | http://redis.io `-._ `-._`-.__.-'_.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | `-._ `-._`-.__.-'_.-' _.-' `-._ `-.__.-' _.-' `-._ _.-' `-.__.-' 25497:S 18 Feb 21:43:21.196 # Server started, Redis version 3.2.8 25497:S 18 Feb 21:43:21.196 * DB loaded from disk: 0.000 seconds 25497:S 18 Feb 21:43:21.196 * The server is now ready to accept connections on port 6389 25497:S 18 Feb 21:43:21.196 * Connecting to MASTER 127.0.0.1:6379 25497:S 18 Feb 21:43:21.196 * MASTER <-> SLAVE sync started 25497:S 18 Feb 21:43:21.196 * Non blocking connect for SYNC fired the event. 25497:S 18 Feb 21:43:21.196 * Master replied to PING, replication can continue... 25497:S 18 Feb 21:43:21.196 * Partial resynchronization not possible (no cached master) 25497:S 18 Feb 21:43:21.197 * Full resync from master: b17cd8764974c68bedacb2e5927a04e9ff15f7df:1 25497:S 18 Feb 21:43:21.198 * MASTER <-> SLAVE sync: receiving 108 bytes from master 25497:S 18 Feb 21:43:21.198 * MASTER <-> SLAVE sync: Flushing old data 25497:S 18 Feb 21:43:21.198 * MASTER <-> SLAVE sync: Loading DB in memory 25497:S 18 Feb 21:43:21.199 * MASTER <-> SLAVE sync: Finished with success
- 从2
进入src目录
./redis-server ../redis.conf
25499:S 18 Feb 21:43:28.975 * Increased maximum number of open files to 10032 (it was originally set to 4864). _._ _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 3.2.8 (00000000/0) 64 bit .-`` .-```. ```\/ _.,_ ''-._ ( ' , .-` | `, ) Running in standalone mode |`-._`-...-` __...-.``-._|'` _.-'| Port: 6399 | `-._ `._ / _.-' | PID: 25499 `-._ `-._ `-./ _.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | http://redis.io `-._ `-._`-.__.-'_.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | `-._ `-._`-.__.-'_.-' _.-' `-._ `-.__.-' _.-' `-._ _.-' `-.__.-' 25499:S 18 Feb 21:43:28.977 # Server started, Redis version 3.2.8 25499:S 18 Feb 21:43:28.977 * DB loaded from disk: 0.000 seconds 25499:S 18 Feb 21:43:28.977 * The server is now ready to accept connections on port 6399 25499:S 18 Feb 21:43:28.979 * Connecting to MASTER 127.0.0.1:6379 25499:S 18 Feb 21:43:28.979 * MASTER <-> SLAVE sync started 25499:S 18 Feb 21:43:28.979 * Non blocking connect for SYNC fired the event. 25499:S 18 Feb 21:43:28.979 * Master replied to PING, replication can continue... 25499:S 18 Feb 21:43:28.979 * Partial resynchronization not possible (no cached master) 25499:S 18 Feb 21:43:28.980 * Full resync from master: b17cd8764974c68bedacb2e5927a04e9ff15f7df:15 25499:S 18 Feb 21:43:29.044 * MASTER <-> SLAVE sync: receiving 108 bytes from master 25499:S 18 Feb 21:43:29.045 * MASTER <-> SLAVE sync: Flushing old data 25499:S 18 Feb 21:43:29.045 * MASTER <-> SLAVE sync: Loading DB in memory 25499:S 18 Feb 21:43:29.045 * MASTER <-> SLAVE sync: Finished with success
- 哨兵1
进入src目录
./redis-sentinel ../sentinel.conf
25501:X 18 Feb 21:43:35.300 * Increased maximum number of open files to 10032 (it was originally set to 4864). _._ _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 3.2.8 (00000000/0) 64 bit .-`` .-```. ```\/ _.,_ ''-._ ( ' , .-` | `, ) Running in sentinel mode |`-._`-...-` __...-.``-._|'` _.-'| Port: 26379 | `-._ `._ / _.-' | PID: 25501 `-._ `-._ `-./ _.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | http://redis.io `-._ `-._`-.__.-'_.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | `-._ `-._`-.__.-'_.-' _.-' `-._ `-.__.-' _.-' `-._ _.-' `-.__.-' 25501:X 18 Feb 21:43:35.301 # Sentinel ID is 6f3360c06cafe7807e2c1ae00fe7c791354b8b24 25501:X 18 Feb 21:43:35.301 # +monitor master mymaster 127.0.0.1 6379 quorum 2
- 哨兵2和哨兵3启动过程相同
验证
新开一个命令行窗口进入redis的src目录，用redis-cli工具登录其中一个哨兵
./redis-cli -p 26379
连接成功后运行如下命令
sentinel master mymaster
结果如下
127.0.0.1:26379> sentinel master mymaster 1) "name" 2) "mymaster" 3) "ip" 4) "127.0.0.1" 5) "port" 6) "6379" 7) "runid" 8) "b17cd8764974c68bedacb2e5927a04e9ff15f7df" 9) "flags" 10) "master" 11) "link-pending-commands" 12) "0" 13) "link-refcount" 14) "1" 15) "last-ping-sent" 16) "0" 17) "last-ok-ping-reply" 18) "703" 19) "last-ping-reply" 20) "703" 21) "down-after-milliseconds" 22) "30000" 23) "info-refresh" 24) "1090" 25) "role-reported" 26) "master" 27) "role-reported-time" 28) "3253725" 29) "config-epoch" 30) "0" 31) "num-slaves" 32) "2" 33) "num-other-sentinels" 34) "2" 35) "quorum" 36) "2" 37) "failover-timeout" 38) "180000" 39) "parallel-syncs" 40) "1"
参考
https://redis.io/topics/sentinel
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