三十六、moved异常说明及操作

太过爱你忘了你带给我的痛 2022-05-15 04:23 129阅读 0赞

\#                                    moved异常说明及操作

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以集群模式连接客户端（-c）：  
集群返回moved异常后，客户端可以获得key对应的槽点，并从新发送命令。

root@redis config]# redis-cli -c -p 8000 
    127.0.0.1:8000> cluster keyslot hello
    (integer) 866
    127.0.0.1:8000> set hello world
    -> Redirected to slot [866] located at 127.0.0.1:8001
    OK
    127.0.0.1:8001> get hello
    "world"
    127.0.0.1:8001> cluster keyslot php
    (integer) 9244
    127.0.0.1:8001> set php best
    OK
    127.0.0.1:8001> get php
    "best"

非集群方式连接：  
返回moved异常及127.0.0.1:8001标识槽点在8001这个节点上，槽数是866，并不能设置值。

[root@redis config]# redis-cli  -p 8000 
    127.0.0.1:8000> set hello world
    (error) MOVED 866 127.0.0.1:8001      
    127.0.0.1:8000> cluster slots
    1) 1) (integer) 0
       2) (integer) 1363
       3) 1) "127.0.0.1"
          2) (integer) 8001
          3) "1f0d813205ea17d9b254488215bd48612c0ff2b5"
       4) 1) "127.0.0.1"
          2) (integer) 8004
          3) "93ae6d9a42bf485a955d2387b0a0d659e2c12902"
    2) 1) (integer) 6827
       2) (integer) 10922
       3) 1) "127.0.0.1"
          2) (integer) 8001
          3) "1f0d813205ea17d9b254488215bd48612c0ff2b5"
       4) 1) "127.0.0.1"
          2) (integer) 8004
          3) "93ae6d9a42bf485a955d2387b0a0d659e2c12902"
    3) 1) (integer) 5461
       2) (integer) 6824
       3) 1) "127.0.0.1"
          2) (integer) 8002
          3) "f5960002d40cf3711eca7146719c4f568115f76c"
       4) 1) "127.0.0.1"
          2) (integer) 8005
          3) "fd17cbac4a5ca1942490d3734a73387341e80fb7"
    4) 1) (integer) 12287
       2) (integer) 16383
       3) 1) "127.0.0.1"
          2) (integer) 8002
          3) "f5960002d40cf3711eca7146719c4f568115f76c"
       4) 1) "127.0.0.1"
          2) (integer) 8005
          3) "fd17cbac4a5ca1942490d3734a73387341e80fb7"
    5) 1) (integer) 1364
       2) (integer) 5460
       3) 1) "127.0.0.1"
          2) (integer) 8003
          3) "9d1cb9fea95f1b205fc7a5ecb20125259765d6ca"
       4) 1) "127.0.0.1"
          2) (integer) 8000
          3) "a2d034b74c9cec4cd8398e8b23ae2d2ab124d49d"
    6) 1) (integer) 6825
       2) (integer) 6826
       3) 1) "127.0.0.1"
          2) (integer) 8003
          3) "9d1cb9fea95f1b205fc7a5ecb20125259765d6ca"
       4) 1) "127.0.0.1"
          2) (integer) 8000
          3) "a2d034b74c9cec4cd8398e8b23ae2d2ab124d49d"
    7) 1) (integer) 10923
       2) (integer) 12286
       3) 1) "127.0.0.1"
          2) (integer) 8003
          3) "9d1cb9fea95f1b205fc7a5ecb20125259765d6ca"
       4) 1) "127.0.0.1"
          2) (integer) 8000
          3) "a2d034b74c9cec4cd8398e8b23ae2d2ab124d49d"

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