redis 集群启动报错解决方案

朴灿烈づ我的快乐病毒、 2022-07-12 06:54 742阅读 0赞

#       redis 集群启动报错 解决方案    #

### 1  \[ERR\] Node 192.168.126.133:7000 is not empty. Either the node already knows other nodes (check with CLUSTER NODES) or contains some key in database 0. ###

![Center][]

**解决方法：**

**1)、将需要新增的节点下aof、rdb等本地备份文件删除；**

**2)、同时将新Node的集群配置文件删除,即：删除你redis.conf里面cluster-config-file所在的文件；**

**3)、再次添加新节点如果还是报错，则登录新Node,./redis-cli–h x –p对数据库进行清除：**

**192.168.126.133:7000>  flushdb      \#清空当前数据库**

**2  /usr/lib64/ruby/gems/1.8/gems/redis-3.3.2/lib/redis/client.rb:121:in \`call': ERR Slot 3853 is already busy (Redis::CommandError)![Center 1][]**

**经检查，这是由于上一次配置集群失败时留下的配置信息导致的。 只要把redis.conf中定义的 cluster-config-file 所在的文件删除，重新启动redis-server及运行redis-trib即可。**

[root@tracker_ip src]# redis-trib.rb create --replicas 1 192.168.126.133:7000 192.168.126.133:7001 192.168.126.133:7002 192.168.126.132:7003 192.168.126.132:7004 192.168.126.132:7005
    >>> Creating cluster
    >>> Performing hash slots allocation on 6 nodes...
    Using 3 masters:
    192.168.126.132:7003
    192.168.126.133:7000
    192.168.126.132:7004
    Adding replica 192.168.126.133:7001 to 192.168.126.132:7003
    Adding replica 192.168.126.132:7005 to 192.168.126.133:7000
    Adding replica 192.168.126.133:7002 to 192.168.126.132:7004
    M: 6c9ac5b8c71ac7875590d44bca9fb6f425436f8e 192.168.126.133:7000
       slots:5461-10922 (5462 slots) master
    S: 3f83c6e383277a68e390a5ff90e70a9804558b1f 192.168.126.133:7001
       replicates 65cee77975fa690694f94c3507de465363a5ed28
    S: 914498b29d881b4d430551fdcfbd8e3a29b31601 192.168.126.133:7002
       replicates 1264f17a92688bf0c3f5b380de98415d4bf4c48f
    M: 65cee77975fa690694f94c3507de465363a5ed28 192.168.126.132:7003
       slots:0-5460 (5461 slots) master
    M: 1264f17a92688bf0c3f5b380de98415d4bf4c48f 192.168.126.132:7004
       slots:10923-16383 (5461 slots) master
    S: d62fd09faa16363ab7cd6c57a4580bd1a9ef943e 192.168.126.132:7005
       replicates 6c9ac5b8c71ac7875590d44bca9fb6f425436f8e
    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 192.168.126.133:7000)
    M: 6c9ac5b8c71ac7875590d44bca9fb6f425436f8e 192.168.126.133:7000
       slots:5461-10922 (5462 slots) master
    M: 3f83c6e383277a68e390a5ff90e70a9804558b1f 192.168.126.133:7001
       slots: (0 slots) master
       replicates 65cee77975fa690694f94c3507de465363a5ed28
    M: 914498b29d881b4d430551fdcfbd8e3a29b31601 192.168.126.133:7002
       slots: (0 slots) master
       replicates 1264f17a92688bf0c3f5b380de98415d4bf4c48f
    M: 65cee77975fa690694f94c3507de465363a5ed28 192.168.126.132:7003
       slots:0-5460 (5461 slots) master
    M: 1264f17a92688bf0c3f5b380de98415d4bf4c48f 192.168.126.132:7004
       slots:10923-16383 (5461 slots) master
    M: d62fd09faa16363ab7cd6c57a4580bd1a9ef943e 192.168.126.132:7005
       slots: (0 slots) master
       replicates 6c9ac5b8c71ac7875590d44bca9fb6f425436f8e
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

集群启动成功！

[Center]: /images/20220711/624e94f93e56422ba8126d20cea294a5.png
[Center 1]: /images/20220711/ffeb7633da3546ffb776408a27be15eb.png