Redis丛集指令CLUSTER

CLUSTER ADDSLOTS

设定Redis Server丛集架构Master节点资料Slots分配．

cluster addslots {0..5400}

CLUSTER SLOTS

取得Redis Server丛集架构目前Master节点设定资料Slots分配．

cluster slots

CLUSTER DELSLOTS

删除Redis Server丛集架构目前Master节点资料Slots分配．

cluster delslots {0..5400}

CLUSTER FLUSHSLOTS

删除节点的Slots分配与资料．

cluster flushslots

CLUSTER SETSLOT slot IMPORTING|MIGRATING|STABLE|NODE

NODE => 将指定资料Slot分配给指定node id．
MIGRATING => 将目前节点的Slot分配给指定node id．
IMPORTING => 从指定node id 将其指定的Slot分配给目前节点．
STABLE => 取消MIGRATING或是IMPORTING分配．

cluster setslot 1 node 1307d911eb56f3079e2490dcab53b3131a0f8f81
cluster setslot 1 migrating 1307d911eb56f3079e2490dcab53b3131a0f8f81
cluster setslot 1 importing 1307d911eb56f3079e2490dcab53b3131a0f8f81
cluster setslot STABLE 1307d911eb56f3079e2490dcab53b3131a0f8f81

CLUSTER MEET

将节点加入Redis Server丛集．

cluster meet 127.0.0.1 6300

CLUSTER INFO

查询目前Redis Server丛集架构与状态．

cluster info

CLUSTER NODES

查询目前Redis Server丛集架构的所有节点与Slots资讯．

cluster nodes

CLUSTER MYID

查询目前节点之node id．

cluster myid

CLUSTER SLAVES

查询目前Redis Server丛集架构Replica节点所属的Master节点．

cluster slaves 1307d911eb56f3079e2490dcab53b3131a0f8f81

CLUSTER REPLICAS

将Redis Server丛集架构内的节点加入到Master节点作为Replica节点．

cluster replicas 1307d911eb56f3079e2490dcab53b3131a0f8f81

CLUSTER REPLICATE

将Redis Server丛集架构内的Replica节点加入到其他指定的Master节点．

cluster replicate 1307d911eb56f3079e2490dcab53b3131a0f8f81

CLUSTER RESET [HARD|SOFT]

将Redis Server丛集架构所有节点移除，资料Slots设定清空，Master节点会保留资料，但Replica节点资料会被清除。如果参数是hard则会重新产生node id 与 epoch设定为0．

cluster reset hard
cluster reset soft

CLUSTER FORGET

将Redis Server丛集架构内指定节点移除．

cluster forget 1307d911eb56f3079e2490dcab53b3131a0f8f81

CLUSTER BUMPEPOCH

取得目前节点Epoch．

cluster bumpepoch

CLUSTER KEYSLOT

取得key会被分配到哪个Slot．

cluster keyslot crc16(1)
cluster keyslot crc16(2)

CLUSTER COUNTKEYSINSLOT slot

取得目前Slot所包含的key-value总数．

cluster countkeysinslot 1

CLUSTER GETKEYSINSLOT

取得目前Slot所包含的keys．

cluster getkeysinslot 7000 3

CLUSTER SAVECONFIG

强制将Redis Server丛集架构存放至硬碟中的组态档．

cluster saveconfig

CLUSTER SET-CONFIG-EPOCH

设定组态档中Epoch的Slot．(必须要在空的或是新建立的状况下操作)

cluster set-config

CLUSTER COUNT-FAILURE-REPORTS

取得失效节点数．

cluster count-failure-reports 1b9af54b8e0f609e0a066530b3f12a7852589fc3

CLUSTER FAILOVER [FORCE|TAKEOVER]

强制手动切换节点为Master．

cluster failover force
cluster failover takeover

• 以上语法在Redis 3.0後的版本都支援此指令，在Redis 5.0後有提供更方便的Redis-cli的指令可以使用．