redis-哨兵抛出错误：“无法解析主实例主机名。”

Question

我正在使用以下配置启动redis和哨兵节点。我首先启动redis节点，当启动哨兵时，如果出现错误，则失败：

sentinel_node |
sentinel_node | *** FATAL CONFIG FILE ERROR ***
sentinel_node | Reading the configuration file, at line 1
sentinel_node | >>> 'sentinel monitor MasterRedis redis_node 6000 3'
sentinel_node | Can't resolve master instance hostname.
sentinel_node exited with code 1

红花组成

version: '2.1'
services:

redis:
    image: redis
    container_name: redis_node
    environment:
    - ALLOW_EMPTY_PASSWORD=yes
    ports:
    - 6000:6000
    volumes:
    - ./redis_startup.sh:/usr/local/bin/redis_startup.sh
    - ./redis_server_stop.sh:/usr/local/bin/redis_server_stop.sh
    command: ["redis_startup.sh", "-port", "6000"]

redis_startup.sh

redis-server --port ${port:-6000}

哨兵写作

version: '2.1'
services:

sentinel:
    image: redis
    container_name: sentinel_node
    ports:
    - 26379:26379
    volumes:
    # This is a read-only file on the host disk. It will be
    # used to create a rw file in this image
    - ./sentinel_node.conf:/usr/local/sentinel_node.conf
    - ./sentinel_startup.sh:/usr/local/bin/sentinel_startup.sh
    - ./redis_server_stop.sh:/usr/local/bin/redis_server_stop.sh
    command: ["sentinel_startup.sh", "-port", "6000", "-name", "sentinel_node"]

前哨启动脚本

redis-server /etc/sentinel_node.conf --sentinel

哨兵房

sentinel monitor MatserRedis redis_node 6000 3
sentinel down-after-milliseconds MatserRedis 3000
sentinel failover-timeout MatserRedis 10000
sentinel parallel-syncs MatserRedis 1

redis节点无错误地启动。

Answer 1

只有版本高于6.2的哨兵才能解析主机名，但默认情况下不启用。将sentinel resolve-hostnames yes添加到sentinel.conf将有帮助。

如果哨兵的版本较早，则主机名redis_node应替换为和ip。

有关详细信息，请参阅Redis文档中的IP地址和DNS名称。

Answer 2

使用最新的redis版本，您只需在sentinel.conf中添加“哨兵解析-主机名是”。一切都很有魅力。

参考文献：https://redis.io/topics/sentinel

Answer 3

我认为这可能是因为redis_node不解析IP地址。也许可以尝试将IP地址放在sentinel.conf中。

MatserRedis在sentinel.conf文件中的拼写也有问题。