前往小程序,Get更优阅读体验!
立即前往
首页
学习
活动
专区
工具
TVP
发布
社区首页 >专栏 >redis创建集群问题解决

redis创建集群问题解决

作者头像
summerking
发布2022-09-19 11:28:00
6020
发布2022-09-19 11:28:00
举报
文章被收录于专栏:summerking的专栏

# Could not connect to Redis No route to host

点击查看

  • 一般是防火墙问题,关闭每个节点的防火墙即可
代码语言:javascript
复制
[root@summer script]# /usr/local/bin/redis-cli --cluster create  192.168.0.68:27000 192.168.0.68:27001 192.168.0.186:27000 192.168.0.186:27001 192.168.0.90:27000 192.168.0.90:27001 --cluster-replicas 1
Could not connect to Redis at 192.168.0.90:27000: No route to host
[root@summer script]# systemctl stop firewalld.service
[root@summer script]# /usr/local/bin/redis-cli --cluster create  192.168.0.68:27000 192.168.0.68:27001 192.168.0.186:27000 192.168.0.186:27001 192.168.0.90:27000 192.168.0.90:27001 --cluster-replicas 1
>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 192.168.0.186:27001 to 192.168.0.68:27000
Adding replica 192.168.0.90:27001 to 192.168.0.186:27000
Adding replica 192.168.0.68:27001 to 192.168.0.90:27000
M: db9f53a88ca58a45c0937ee47a3059351c08be63 192.168.0.68:27000
   slots:[0-5460] (5461 slots) master
S: 0b1c24d6db9152c19062a2e1cef5b893d8722e55 192.168.0.68:27001
   replicates ec9254a213de1d9c4d17ef2b1208e224b73bd2e2
M: d55bafc8e5e06a17d9987ac50075118988710330 192.168.0.186:27000
   slots:[5461-10922] (5462 slots) master
S: 045ca4b6d55fd19f2b77bac013b0fa13e346b1cd 192.168.0.186:27001
   replicates db9f53a88ca58a45c0937ee47a3059351c08be63
M: ec9254a213de1d9c4d17ef2b1208e224b73bd2e2 192.168.0.90:27000
   slots:[10923-16383] (5461 slots) master
S: 22399be1d3274c8a6494a13f96030ff144e8f8ea 192.168.0.90:27001
   replicates d55bafc8e5e06a17d9987ac50075118988710330
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join
....
>>> Performing Cluster Check (using node 192.168.0.68:27000)
M: db9f53a88ca58a45c0937ee47a3059351c08be63 192.168.0.68:27000
   slots:[0-5460] (5461 slots) master
   1 additional replica(s)
S: 0b1c24d6db9152c19062a2e1cef5b893d8722e55 192.168.0.68:27001
   slots: (0 slots) slave
   replicates ec9254a213de1d9c4d17ef2b1208e224b73bd2e2
M: ec9254a213de1d9c4d17ef2b1208e224b73bd2e2 192.168.0.90:27000
   slots:[10923-16383] (5461 slots) master
   1 additional replica(s)
M: d55bafc8e5e06a17d9987ac50075118988710330 192.168.0.186:27000
   slots:[5461-10922] (5462 slots) master
   1 additional replica(s)
S: 22399be1d3274c8a6494a13f96030ff144e8f8ea 192.168.0.90:27001
   slots: (0 slots) slave
   replicates d55bafc8e5e06a17d9987ac50075118988710330
S: 045ca4b6d55fd19f2b77bac013b0fa13e346b1cd 192.168.0.186:27001
   slots: (0 slots) slave
   replicates db9f53a88ca58a45c0937ee47a3059351c08be63
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
[root@summer script]# redis-cli -h 192.168.0.68 -p 27000
192.168.0.68:27000> cluster nodes
0b1c24d6db9152c19062a2e1cef5b893d8722e55 192.168.0.68:27001@37001 slave ec9254a213de1d9c4d17ef2b1208e224b73bd2e2 0 1608806725754 5 connected
ec9254a213de1d9c4d17ef2b1208e224b73bd2e2 192.168.0.90:27000@37000 master - 0 1608806723740 5 connected 10923-16383
d55bafc8e5e06a17d9987ac50075118988710330 192.168.0.186:27000@37000 master - 0 1608806724000 3 connected 5461-10922
22399be1d3274c8a6494a13f96030ff144e8f8ea 192.168.0.90:27001@37001 slave d55bafc8e5e06a17d9987ac50075118988710330 0 1608806722732 6 connected
db9f53a88ca58a45c0937ee47a3059351c08be63 192.168.0.68:27000@37000 myself,master - 0 1608806720000 1 connected 0-5460
045ca4b6d55fd19f2b77bac013b0fa13e346b1cd 192.168.0.186:27001@37001 slave db9f53a88ca58a45c0937ee47a3059351c08be63 0 1608806724747 4 connected
192.168.0.68:27000> 

# 37000总线端口未开放

点击查看

  • 创建集群时一直显示Waiting for the cluster to join
  1. 每个Redis集群中的节点都需要打开两个TCP连接。一个连接用于正常的给Client提供服务,比如6379,还有一个额外的端口(通过在这个端口号上加10000)作为数据端口。如16379,这是一个用二进制协议的点对点通信信道。集群总线(Cluster bus)用于节点的失败侦测、配置更新、故障转移授权,等等。客户端从来都不应该尝试和这些集群总线端口通信,它们只应该和正常的Redis命令端口进行通信。
  2. 命令端口和集群总线端口的偏移量是10000。

注意,集群中的每个节点都应该可以访问集群总线端口(客户端通信端口 + 10000)

集群总线用一个不同的二进制协议通信,用于节点之间的数据交换

本文参与 腾讯云自媒体同步曝光计划,分享自作者个人站点/博客。
原始发表:2020-01-24,如有侵权请联系 cloudcommunity@tencent.com 删除

本文分享自 作者个人站点/博客 前往查看

如有侵权,请联系 cloudcommunity@tencent.com 删除。

本文参与 腾讯云自媒体同步曝光计划  ,欢迎热爱写作的你一起参与!

评论
登录后参与评论
0 条评论
热度
最新
推荐阅读
目录
  • # Could not connect to Redis No route to host
  • # 37000总线端口未开放
相关产品与服务
云数据库 Redis
腾讯云数据库 Redis(TencentDB for Redis)是腾讯云打造的兼容 Redis 协议的缓存和存储服务。丰富的数据结构能帮助您完成不同类型的业务场景开发。支持主从热备,提供自动容灾切换、数据备份、故障迁移、实例监控、在线扩容、数据回档等全套的数据库服务。
领券
问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档