docker compose 部署 主从复制
prepare
docker compose 部署主从复制
1
2
| cd ~/apps/redis
mkdir -p redis-master/data redis-slave-1/data redis-slave-2/data
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
| version: '3'
services:
master:
image: redis
container_name: redis-master
privileged: true
restart: always
command: redis-server --cluster-enabled yes --cluster-announce-ip 192.168.50.28 --requirepass summer
volumes:
- ./redis-master/data:/data
ports:
- 6379:6379
slave1:
image: redis
container_name: redis-slave-1
privileged: true
restart: always
command: redis-server --slaveof redis-master 6379 --cluster-announce-ip 192.168.50.28 --requirepass summer --masterauth summer
volumes:
- ./redis-slave-1/data:/data
ports:
- 6380:6379
slave2:
image: redis
container_name: redis-slave-2
privileged: true
restart: always
command: redis-server --slaveof redis-master 6379 --cluster-announce-ip 192.168.50.28 --requirepass summer --masterauth summer
volumes:
- ./redis-slave-2/data:/data
ports:
- 6381:6379
|
启动命令
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
| systemctl start docker
docker-compose up -d
docker exec -it redis-master /bin/bash
#
redis-cli --cluster fix 192.168.50.28:6379 -a summer
redis-cli -h redis-master -a summer
cluster nodes
# 检查集群
redis-cli --cluster check 192.168.50.28:6379 --cluster-search-multiple-owners -a summer
# 修复集群
redis-cli --cluster fix 192.168.50.28:6379 --cluster-search-multiple-owners -a summer
# 说明：检查key、slots、从节点个数的分配情况
# 集群信息查看
redis-cli --cluster info 192.168.50.28:6379 -a summer
|
安装常见问题
ps命令在docker容器不存在
1
| apt-get update && apt-get install procps -y
|
容器 下查看redis的安装目录的方法是什么
得到了进程号 xxxx，
然后 ls -l /proc/xxxx/cwd
Redis集群Hash槽分配异常 CLUSTERDOWN Hash slot not served的解决方式
1
2
| redis-cli --cluster check 192.168.171.134:6379
redis-cli --cluster fix 192.168.171.134:6379
|
1
| redis-cli -c -h 192.168.171.134
|
1
| redis-cli -h host -p port -a password
|
参考文章