Redis sentinel 将 slaves 标记为 down
Redis sentinel marks slaves as down
我正在尝试设置一个典型的 redis sentinel 配置，其中三台机器将 运行 三个 redis 服务器和三个 redis sentinel。 redis 服务器的 Master/Slave 部分工作正常，但哨兵不工作。当我启动两个哨兵时，主人的哨兵检测到奴隶，但在指定的时间后将它们标记为关闭。我在 debian jessie 机器上 运行ning Redis 3.0.5 64 位。
8319:X 22 Dec 14:06:17.855 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
8319:X 22 Dec 14:06:17.855 # Sentinel runid is cdd5bbd5b84c876982dbca9d45ecc4bf8500e7a2
8319:X 22 Dec 14:06:17.855 # +monitor master mymaster xxxxxxxx0 6379 quorum 2
8319:X 22 Dec 14:06:18.857 * +slave slave xxxxxxxx2:6379 xxxxxxx2 6379 @ mymaster xxxxxxx0 6379
8319:X 22 Dec 14:06:18.858 * +slave slave xxxxxx1:6380 xxxxxxx1 6380 @ mymaster xxxxxxx0 6379
8319:X 22 Dec 14:07:18.862 # +sdown slave xxxxxxxx1:6380 xxxxxxx1 6380 @ mymaster xxxxxx0 6379
8319:X 22 Dec 14:07:18.862 # +sdown slave xxxxxx2:6379 xxxxxxx2 6379 @ mymaster xxxxxx0 6379
哨兵配置文件：
daemonize yes
pidfile "/var/run/redis/redis-sentinel.pid"
logfile "/var/log/redis/redis-sentinel.log"
bind 127.0.0.1 xxxxxxx0
port 26379
sentinel monitor mymaster xxxxxxx0 6379 2
sentinel down-after-milliseconds mymaster 60000
sentinel config-epoch mymaster 0
sentinel leader-epoch mymaster 0
dir "/var/lib/redis"
当然，这些机器之间存在连接，因为从机工作正常：
7553:S 22 Dec 13:46:33.285 * Connecting to MASTER xxxxxxxx0:6379 <br/>
7553:S 22 Dec 13:46:33.286 * MASTER <-> SLAVE sync started
7553:S 22 Dec 13:46:33.286 * Non blocking connect for SYNC fired the event.
7553:S 22 Dec 13:46:33.287 * Master replied to PING, replication can continue...
7553:S 22 Dec 13:46:33.288 * Partial resynchronization not possible (no cached master)
7553:S 22 Dec 13:46:33.291 * Full resync from master: f637ca8fe003acd09c6d021aed3f89a0d9994c9b:98290
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: receiving 18 bytes from master
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: Flushing old data
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: Loading DB in memory
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: Finished with success
7553:S 22 Dec 14:01:33.072 * 1 changes in 900 seconds. Saving...
我可以自己回答。问题是 sentinel conf 中出现的第一个 IP 是 localhost ip。它需要是绑定 IP。以防万一它为任何人服务。
我正在尝试设置一个典型的 redis sentinel 配置，其中三台机器将 运行 三个 redis 服务器和三个 redis sentinel。 redis 服务器的 Master/Slave 部分工作正常，但哨兵不工作。当我启动两个哨兵时，主人的哨兵检测到奴隶，但在指定的时间后将它们标记为关闭。我在 debian jessie 机器上 运行ning Redis 3.0.5 64 位。
8319:X 22 Dec 14:06:17.855 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
8319:X 22 Dec 14:06:17.855 # Sentinel runid is cdd5bbd5b84c876982dbca9d45ecc4bf8500e7a2
8319:X 22 Dec 14:06:17.855 # +monitor master mymaster xxxxxxxx0 6379 quorum 2
8319:X 22 Dec 14:06:18.857 * +slave slave xxxxxxxx2:6379 xxxxxxx2 6379 @ mymaster xxxxxxx0 6379
8319:X 22 Dec 14:06:18.858 * +slave slave xxxxxx1:6380 xxxxxxx1 6380 @ mymaster xxxxxxx0 6379
8319:X 22 Dec 14:07:18.862 # +sdown slave xxxxxxxx1:6380 xxxxxxx1 6380 @ mymaster xxxxxx0 6379
8319:X 22 Dec 14:07:18.862 # +sdown slave xxxxxx2:6379 xxxxxxx2 6379 @ mymaster xxxxxx0 6379
哨兵配置文件：
daemonize yes
pidfile "/var/run/redis/redis-sentinel.pid"
logfile "/var/log/redis/redis-sentinel.log"
bind 127.0.0.1 xxxxxxx0
port 26379
sentinel monitor mymaster xxxxxxx0 6379 2
sentinel down-after-milliseconds mymaster 60000
sentinel config-epoch mymaster 0
sentinel leader-epoch mymaster 0
dir "/var/lib/redis"
当然，这些机器之间存在连接，因为从机工作正常：
7553:S 22 Dec 13:46:33.285 * Connecting to MASTER xxxxxxxx0:6379 <br/>
7553:S 22 Dec 13:46:33.286 * MASTER <-> SLAVE sync started
7553:S 22 Dec 13:46:33.286 * Non blocking connect for SYNC fired the event.
7553:S 22 Dec 13:46:33.287 * Master replied to PING, replication can continue...
7553:S 22 Dec 13:46:33.288 * Partial resynchronization not possible (no cached master)
7553:S 22 Dec 13:46:33.291 * Full resync from master: f637ca8fe003acd09c6d021aed3f89a0d9994c9b:98290
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: receiving 18 bytes from master
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: Flushing old data
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: Loading DB in memory
7553:S 22 Dec 13:46:33.350 * MASTER <-> SLAVE sync: Finished with success
7553:S 22 Dec 14:01:33.072 * 1 changes in 900 seconds. Saving...
我可以自己回答。问题是 sentinel conf 中出现的第一个 IP 是 localhost ip。它需要是绑定 IP。以防万一它为任何人服务。