![\"Redis_Cluster_on_K8s.png\"](\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d1a8837434c4406c0c000\/1-0.png\" "\\"\\"")
<\/div>\n\u914d\u7f6eRedis\u96c6\u7fa4<\/h1>\n
\u8fd9\u662f\u642d\u5efa\u5305\u542b3\u4e2aRedis\u4e3b\u8282\u70b9\u548c3\u4e2aRedis\u4ece\u8282\u70b9\u7684Redis\u96c6\u7fa4\u7684\u8bb0\u5f55\u3002<\/p>\n
K8s\u96c6\u7fa4\u8282\u70b9\u5217\u8868<\/h2>\n
\u521b\u5efa\u7684Redis\u96c6\u7fa4\u73af\u5883\u662fIBM Cloud Kubernetes Service (IKS) \u7684\u4e09\u8282\u70b9K8s\u96c6\u7fa4\u914d\u7f6e\u3002<\/p>\n
$ kubectl get node\r\nNAME STATUS ROLES AGE VERSION\r\n10.193.10.14 Ready <none> 22m v1.13.8+IKS\r\n10.193.10.20 Ready <none> 21m v1.13.8+IKS\r\n10.193.10.58 Ready <none> 22m v1.13.8+IKS\r\n<\/code><\/pre>\n\u4f7f\u7528\u6e05\u5355\u6587\u4ef6\u542f\u52a8Redis\u96c6\u7fa4<\/h2>\n
\u8fd9\u91cc\u4f7f\u7528\u7684\u6e05\u5355\u662f\u4ecehttps:\/\/github.com\/sanderploegsma\/redis-cluster \u76f4\u63a5\u4f7f\u7528\u7684\u3002\u5c3d\u7ba1\u8fd9\u4e2a\u6e05\u5355\u4e0d\u662f\u9488\u5bf9IKS\u8bbe\u8ba1\u7684\uff0c\u4f46\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u6ca1\u6709\u4fee\u6539\u8fc7\u7684\u7248\u672c\u3002<\/p>\n
$ kubectl apply -f redis-cluster.yml\r\nconfigmap\/redis-cluster created\r\nservice\/redis-cluster created\r\nstatefulset.apps\/redis-cluster created\r\n<\/code><\/pre>\nPod\u548cPersistentVolume\u7684\u521b\u5efa\u5b8c\u6210\u72b6\u6001<\/h4>\n
\u5728\u8fd9\u4e2a\u9636\u6bb5\uff0cRedis\u96c6\u7fa4\u4e2d\u7684\u6bcf\u4e2aPod\u90fd\u5df2\u7ecf\u6302\u8f7d\u4e86\u6301\u4e45\u6027\u5377\u3002<\/p>\n
$ kubectl get po -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES\r\nredis-cluster-0 0\/1 Pending 0 40s <none> <none> <none> <none>\r\n\r\n$ kubectl get po -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE \r\nredis-cluster-0 1\/1 Running 0 28m 172.30.254.8 10.193.10.14\r\nredis-cluster-1 1\/1 Running 0 26m 172.30.103.132 10.193.10.58\r\nredis-cluster-2 1\/1 Running 0 24m 172.30.63.2 10.193.10.20\r\nredis-cluster-3 1\/1 Running 0 22m 172.30.254.9 10.193.10.14\r\nredis-cluster-4 1\/1 Running 0 20m 172.30.63.3 10.193.10.20\r\nredis-cluster-5 1\/1 Running 0 18m 172.30.103.133 10.193.10.58\r\n\r\n\r\n$ kubectl get pvc\r\nNAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE\r\ndata-redis-cluster-0 Bound pvc-43b58162 20Gi RWO ibmc-file-bronze 28m\r\ndata-redis-cluster-1 Bound pvc-86a09801 20Gi RWO ibmc-file-bronze 26m\r\ndata-redis-cluster-2 Bound pvc-d3110510 20Gi RWO ibmc-file-bronze 24m\r\ndata-redis-cluster-3 Bound pvc-19828267 20Gi RWO ibmc-file-bronze 22m\r\ndata-redis-cluster-4 Bound pvc-6515149b 20Gi RWO ibmc-file-bronze 20m\r\ndata-redis-cluster-5 Bound pvc-a8929ead 20Gi RWO ibmc-file-bronze 18m\r\n<\/code><\/pre>\nRedis\u96c6\u7fa4\u7684\u521d\u59cb\u5316<\/h2>\n
\u5728Redis\u96c6\u7fa4\u7684\u4e00\u4e2a\u8282\u70b9\u4e0a\u6267\u884c\u547d\u4ee4\uff0c\u4ece\u800c\u6784\u5efaRedis\u96c6\u7fa4\u3002<\/p>\n
$ kubectl exec -it redis-cluster-0 -- redis-cli --cluster create --cluster-replicas 1 \\\r\n> $(kubectl get pods -l app=redis-cluster -o jsonpath='{range.items[*]}{.status.podIP}:6379 ')\r\n>>> Performing hash slots allocation on 6 nodes...\r\nMaster[0] -> Slots 0 - 5460\r\nMaster[1] -> Slots 5461 - 10922\r\nMaster[2] -> Slots 10923 - 16383\r\nAdding replica 172.30.254.9:6379 to 172.30.254.8:6379\r\nAdding replica 172.30.63.3:6379 to 172.30.103.132:6379\r\nAdding replica 172.30.103.133:6379 to 172.30.63.2:6379\r\nM: 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379\r\n slots:[0-5460] (5461 slots) master\r\nM: e3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379\r\n slots:[5461-10922] (5462 slots) master\r\nM: 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379\r\n slots:[10923-16383] (5461 slots) master\r\nS: 3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379\r\n replicates 901cdffd0f11f30e09ba2c22540ca2d31f1219e2\r\nS: cfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379\r\n replicates e3246d584d2390f7775ff168da4f8838939c6e53\r\nS: 2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379\r\n replicates 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe\r\nCan I set the above configuration? (type 'yes' to accept): yes\r\n>>> Nodes configuration updated\r\n>>> Assign a different config epoch to each node\r\n>>> Sending CLUSTER MEET messages to join the cluster\r\nWaiting for the cluster to join\r\n....\r\n>>> Performing Cluster Check (using node 172.30.254.8:6379)\r\nM: 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379\r\n slots:[0-5460] (5461 slots) master\r\n 1 additional replica(s)\r\nS: 2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379\r\n slots: (0 slots) slave\r\n replicates 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe\r\nM: e3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379\r\n slots:[5461-10922] (5462 slots) master\r\n 1 additional replica(s)\r\nM: 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379\r\n slots:[10923-16383] (5461 slots) master\r\n 1 additional replica(s)\r\nS: cfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379\r\n slots: (0 slots) slave\r\n replicates e3246d584d2390f7775ff168da4f8838939c6e53\r\nS: 3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379\r\n slots: (0 slots) slave\r\n replicates 901cdffd0f11f30e09ba2c22540ca2d31f1219e2\r\n[OK] All nodes agree about slots configuration.\r\n>>> Check for open slots...\r\n>>> Check slots coverage...\r\n[OK] All 16384 slots covered.\r\n<\/code><\/pre>\n\u786e\u8ba4Redis\u96c6\u7fa4\u7684\u6210\u5458<\/h4>\n$ kubectl run -it redis-cli --rm --image redis --restart=Never -- bash\r\nIf you don't see a command prompt, try pressing enter.\r\nroot@redis-cli:\/data# redis-cli -c -h 172.30.254.8 -p 6379 \r\n172.30.254.8:6379> cluster nodes\r\n2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379@16379 slave 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 0 1564558966000 6 connected\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 master - 0 1564558965000 2 connected 5461-10922\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564558966134 3 connected 10923-16383\r\nf4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379@16379 master - 0 1564558965000 0 connected\r\ncfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379@16379 slave e3246d584d2390f7775ff168da4f8838939c6e53 0 1564558967137 5 connected\r\n3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379@16379 slave 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 0 1564558965128 4 connected\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 myself,master - 0 1564558964000 1 connected 0-5460\r\n<\/code><\/pre>\n\u5728\u6309\u7167\u59d3\u540d\u987a\u5e8f\u7684\u89c6\u56fe\u4e2d\u8fdb\u884c\u5206\u6790<\/h4>\n
\u6309\u7167\u4e3b\u8282\u70b9\u7684\u987a\u5e8f\u542f\u52a8\uff0c\u4f9d\u6b21\u542f\u52a8\u4ece\u8282\u70b9\u3002\u53ef\u4ee5\u4e86\u89e3\u5230\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u7684\u5173\u7cfb\u3002<\/p>\n
NAME IP NODE ROLE MASTER\r\nredis-cluster-0 172.30.254.8 10.193.10.14 Master -\r\nredis-cluster-1 172.30.103.132 10.193.10.58 Master -\r\nredis-cluster-2 172.30.63.2 10.193.10.20 Master -\r\nredis-cluster-3 172.30.254.9 10.193.10.14 Slave redis-cluster-0\r\nredis-cluster-4 172.30.63.3 10.193.10.20 Slave redis-cluster-1\r\nredis-cluster-5 172.30.103.133 10.193.10.58 Slave redis-cluster-2\r\n<\/code><\/pre>\n\u6839\u636e\u4e0a\u8ff0\u7ed3\u679c\uff0c\u5236\u4f5c\u4e3b\u4ece\u5bf9\u5e94\u8868\u5982\u4e0b\u3002<\/p>\n
\u30de\u30b9\u30bf\u30fc \u30b9\u30ec\u30fc\u30d6\uff08\u30ec\u30d7\u30ea\u30ab\uff09\r\n redis-cluster-0 -> redis-cluster-3\r\n redis-cluster-1 -> redis-cluster-4\r\n redis-cluster-2 -> redis-cluster-5\r\n<\/code><\/pre>\n\u5728\u8282\u70b9\u6392\u5e8f\u89c6\u56fe\u4e2d\u8fdb\u884c\u5206\u6790<\/h4>\n
\u901a\u8fc7\u6309\u8282\u70b9\u987a\u5e8f\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4e86\u89e3\u5728K8s\u4e0a\u5171\u5b58\u7684Pods\u3002\u4f5c\u4e3a\u7ed3\u679c\uff0c\u5f97\u77e5\u4e3b\u8282\u70b9 redis-cluster-0 \u548c\u4ece\u8282\u70b9 redis-cluster-3 \u5728\u8282\u70b9 *.14 \u4e0a\u7684\u540c\u4e00\u4e2aK8s\u8282\u70b9\u4e0a\u3002\u56e0\u6b64\uff0c\u5982\u679c\u6b64K8s\u8282\u70b9\u505c\u6b62\uff0c\u54c8\u5e0c\u69fd slots:[0-5460] \u5c06\u4f1a\u4e22\u5931\u3002\u56e0\u6b64\uff0c\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u5c06\u540c\u65f6\u4e22\u5931\uff0c\u5e76\u4e14\u4ece\u8282\u70b9\u65e0\u6cd5\u5347\u7ea7\u4ee5\u8fdb\u884c\u6301\u7eed\u670d\u52a1\u3002<\/p>\n
\u5982\u679cK8s\u8282\u70b9\uff08\u865a\u62df\u670d\u52a1\u5668\uff09*.14\u505c\u6b62\u8fd0\u884c\uff0c\u5bf9\u4e8eGCP\u800c\u8a00\uff0c\u4f1a\u7acb\u5373\u542f\u52a8\u66ff\u4ee3\u7684K8s\u8282\u70b9\uff08\u865a\u62df\u670d\u52a1\u5668\uff09\uff0c\u56e0\u6b64\u80fd\u591f\u5728\u77ed\u65f6\u95f4\u5185\u6062\u590d\u6b63\u5e38\u3002\u800c\u5bf9\u4e8eIKS\u800c\u8a00\uff0c\u5982\u679c\u80fd\u591f\u5728\u77ed\u65f6\u95f4\u5185\u542f\u52a8K8s\u8282\u70b9\uff08\u865a\u62df\u670d\u52a1\u5668\uff09\uff0c\u5c31\u80fd\u591f\u964d\u4f4e\u505c\u673a\u65f6\u95f4\u5bf9\u7cfb\u7edf\u9020\u6210\u7684\u5f71\u54cd\u3002<\/p>\n
NAME IP NODE ROLE MASTER\r\nredis-cluster-0 172.30.254.8 10.193.10.14 Master -\r\nredis-cluster-3 172.30.254.9 10.193.10.14 Slave redis-cluster-0\r\nredis-cluster-2 172.30.63.2 10.193.10.20 Master -\r\nredis-cluster-4 172.30.63.3 10.193.10.20 Slave redis-cluster-1\r\nredis-cluster-1 172.30.103.132 10.193.10.58 Master -\r\nredis-cluster-5 172.30.103.133 10.193.10.58 Slave redis-cluster-2\r\n<\/code><\/pre>\nRedis\u96c6\u7fa4\u5df2\u7ecf\u6784\u5efa\u5b8c\u6210\u3002K8s\u96c6\u7fa4\u5185\u7684\u5ba2\u6237\u7aef\u73b0\u5728\u53ef\u4ee5\u901a\u8fc7\u5185\u90e8DNS redis-cluster \u8bbf\u95eeRedis\u96c6\u7fa4\u3002\u5f53\u7136\uff0c\u4f7f\u7528\u652f\u6301Redis\u96c6\u7fa4\u7684\u7f16\u7a0b\u8bed\u8a00\u5e93\u662f\u5fc5\u8981\u7684\u3002<\/p>\n
Redis\u96c6\u7fa4\u7684\u589e\u5f3a<\/h1>\n
\u5728\u5df2\u542f\u52a8\u7684Redis\u96c6\u7fa4\u4e2d\u6dfb\u52a0Pod\uff0c\u589e\u5f3aRedis\u96c6\u7fa4\u7684\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u7684\u6570\u91cf\u3002\u4f46\u662f\uff0c\u5e76\u6ca1\u6709\u589e\u52a0K8s\u96c6\u7fa4\u7684\u8282\u70b9\u6570\u3002\u64cd\u4f5c\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n
\n- \n
\u30b9\u30c6\u30fc\u30c8\u30d5\u30eb\u30bb\u30c3\u30c8\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u5bfe\u3057\u3066\u3001\u30ec\u30d7\u30ea\u30ab\u30bb\u30c3\u30c8\u6570 8 \u3092\u30bb\u30c3\u30c8<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
Redis\u30de\u30b9\u30bf\u30fc\u306e\u8ffd\u52a0<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
Redis\u30b9\u30c6\u30fc\u30d6\u306e\u8ffd\u52a0<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\u30ea\u30d0\u30e9\u30f3\u30b9\u3092\u5b9f\u884c\u3057\u3066\u3001\u8ffd\u52a0\u3057\u305fRedis\u30de\u30b9\u30bf\u30fc\u306b\u30c7\u30fc\u30bf\u3092\u5747\u4e00\u5316<\/ul>\n\u590d\u5236\u54c1\u7684\u6570\u91cf\u589e\u52a0\uff0c\u4ece6\u4e2a\u589e\u52a0\u52308\u4e2a\u3002<\/h2>\n
\u5c06\u65b0\u7684\u526f\u672c\u6570\u91cf\u8bbe\u7f6e\u5230\u72b6\u6001\u63a7\u5236\u5668\u4e2d\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u6210\u5458\u5c06\u5728\u5e8f\u5217\u7684\u672b\u5c3e\u6dfb\u52a0\u3002\u65b0\u589e\u7684Pod\u4e0e\u73b0\u6709\u7684Pod\u4e00\u6837\uff0c\u90fd\u6302\u8f7d\u4e86\u6301\u4e45\u5377\u3002<\/p>\n
$ kubectl scale statefulset redis-cluster --replicas=8\r\nstatefulset.apps\/redis-cluster scaled\r\n\r\n$ kubectl get po -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nredis-cluster-0 1\/1 Running 0 36m 172.30.254.8 10.193.10.14\r\nredis-cluster-1 1\/1 Running 0 35m 172.30.103.132 10.193.10.58\r\nredis-cluster-2 1\/1 Running 0 32m 172.30.63.2 10.193.10.20\r\nredis-cluster-3 1\/1 Running 0 30m 172.30.254.9 10.193.10.14\r\nredis-cluster-4 1\/1 Running 0 28m 172.30.63.3 10.193.10.20\r\nredis-cluster-5 1\/1 Running 0 26m 172.30.103.133 10.193.10.58\r\nredis-cluster-6 1\/1 Running 0 3m41s 172.30.254.10 10.193.10.14\r\nredis-cluster-7 1\/1 Running 0 112s 172.30.63.4 10.193.10.20\r\n<\/code><\/pre>\n\u589e\u52a0Redis\u4e3b\u8282\u70b9<\/h2>\n
\u5c06 Pod redis-cluster-6 \u4f5c\u4e3a Redis \u4e3b\u8282\u70b9\u6dfb\u52a0\u5230 redis-cluster-0\uff0c\u5e76\u901a\u77e5\u3002\u5728\u5176\u4e2d\uff0c\u201c$(kubectl get pod redis-cluster-6 -o jsonpath='{.status.podIP}’)\u201d\u5c06\u8fd4\u56de\u6307\u5b9a Pod \u7684 IP \u5730\u5740\u3002\u867d\u7136\u4e5f\u53ef\u4ee5\u67e5\u627e\u5e76\u8bbe\u7f6e IP \u5730\u5740\uff0c\u4f46\u8fd9\u79cd\u65b9\u6cd5\u66f4\u52a0\u5de7\u5999\u3002<\/p>\n
imac:redis-cluster maho$ kubectl exec redis-cluster-0 -- redis-cli --cluster add-node \\\r\n> $(kubectl get pod redis-cluster-6 -o jsonpath='{.status.podIP}'):6379 \\\r\n> $(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379\r\n>>> Adding node 172.30.254.10:6379 to cluster 172.30.254.8:6379\r\n>>> Performing Cluster Check (using node 172.30.254.8:6379)\r\nM: 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379\r\n slots:[0-5460] (5461 slots) master\r\n 1 additional replica(s)\r\nS: 2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379\r\n slots: (0 slots) slave\r\n replicates 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe\r\nM: e3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379\r\n slots:[5461-10922] (5462 slots) master\r\n 1 additional replica(s)\r\nM: 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379\r\n slots:[10923-16383] (5461 slots) master\r\n 1 additional replica(s)\r\nS: cfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379\r\n slots: (0 slots) slave\r\n replicates e3246d584d2390f7775ff168da4f8838939c6e53\r\nS: 3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379\r\n slots: (0 slots) slave\r\n replicates 901cdffd0f11f30e09ba2c22540ca2d31f1219e2\r\n[OK] All nodes agree about slots configuration.\r\n>>> Check for open slots...\r\n>>> Check slots coverage...\r\n[OK] All 16384 slots covered.\r\n>>> Send CLUSTER MEET to node 172.30.254.10:6379 to make it join the cluster.\r\n[OK] New node added correctly.\r\n<\/code><\/pre>\n\u8fd9\u662f\u6709\u5173\u83b7\u53d6 Pod IP \u5730\u5740\u7684\u65b9\u6cd5\u7684\u8865\u5145\u8bf4\u660e\u3002\u4ec5\u6267\u884c $() \u4e2d\u7684\u5185\u5bb9\uff0c\u5373\u53ef\u7406\u89e3\u8fd4\u56de\u7684\u662f redis-cluster-0 Pod \u7684 IP \u5730\u5740\u3002<\/p>\n
$ kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}';echo\r\n172.30.254.8\r\n<\/code><\/pre>\n\u663e\u793aRedis\u8282\u70b9\u7684\u5217\u8868<\/h4>\n
\u53ef\u4ee5\u542f\u52a8\u53e6\u4e00\u4e2a\u5bf9\u8bdd\u578b\u9a7b\u70b9\uff0c\u4e3b\u8282\u70b9\u53ef\u4ee5\u786e\u8ba44\u4e2a\uff0c\u4ece\u8282\u70b9\u53ef\u4ee5\u786e\u8ba43\u4e2a\u72b6\u6001\u3002<\/p>\n
$ kubectl run -it redis-cli --rm --image redis --restart=Never -- bash\r\nIf you don't see a command prompt, try pressing enter.\r\nroot@redis-cli:\/data# redis-cli -c -h 172.30.254.8 -p 6379 \r\n172.30.254.8:6379> cluster nodes\r\n2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379@16379 slave 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 0 1564558966000 6 connected\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 master - 0 1564558965000 2 connected 5461-10922\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564558966134 3 connected 10923-16383\r\nf4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379@16379 master - 0 1564558965000 0 connected <--- \u8ffd\u52a0\r\ncfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379@16379 slave e3246d584d2390f7775ff168da4f8838939c6e53 0 1564558967137 5 connected\r\n3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379@16379 slave 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 0 1564558965128 4 connected\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 myself,master - 0 1564558964000 1 connected 0-5460\r\n<\/code><\/pre>\n\u6dfb\u52a0\u4e00\u4e2aRedis\u4ece\u670d\u52a1\u5668<\/h2>\n
\u7531\u4e8e\u6211\u4eec\u6dfb\u52a0\u4e86Redis\u4e3b\u8282\u70b9\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u6dfb\u52a0\u4e00\u4e2a\u7528\u4e8e\u590d\u5236\u8be5\u4e3b\u8282\u70b9\u6570\u636e\u7684Redis\u4ece\u8282\u70b9\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6307\u5b9a\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u5411Pod redis-cluster-0 \u53d1\u51fa\u901a\u77e5\u4ee5\u6dfb\u52a0Pod redis-cluster-7\u3002\u7531\u4e8eRedis\u96c6\u7fa4\u7684\u4e3b\u8282\u70b9\u90fd\u662f\u76f8\u540c\u7ea7\u522b\u7684\uff0c\u6240\u4ee5\u5728\u5176\u4ed6Redis\u4e3b\u8282\u70b9\u7684Pod\u4e2d\u8fdb\u884c\u4e5f\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n
$ kubectl exec redis-cluster-0 -- redis-cli --cluster add-node --cluster-slave \\\r\n> $(kubectl get pod redis-cluster-7 -o jsonpath='{.status.podIP}'):6379 \\\r\n> $(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379\r\n>>> Adding node 172.30.63.4:6379 to cluster 172.30.254.8:6379\r\n>>> Performing Cluster Check (using node 172.30.254.8:6379)\r\nM: 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379\r\n slots:[0-5460] (5461 slots) master\r\n 1 additional replica(s)\r\nS: 2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379\r\n slots: (0 slots) slave\r\n replicates 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe\r\nM: e3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379\r\n slots:[5461-10922] (5462 slots) master\r\n 1 additional replica(s)\r\nM: 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379\r\n slots:[10923-16383] (5461 slots) master\r\n 1 additional replica(s)\r\nM: f4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379\r\n slots: (0 slots) master\r\nS: cfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379\r\n slots: (0 slots) slave\r\n replicates e3246d584d2390f7775ff168da4f8838939c6e53\r\nS: 3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379\r\n slots: (0 slots) slave\r\n replicates 901cdffd0f11f30e09ba2c22540ca2d31f1219e2\r\n[OK] All nodes agree about slots configuration.\r\n>>> Check for open slots...\r\n>>> Check slots coverage...\r\n[OK] All 16384 slots covered.\r\nAutomatically selected master 172.30.254.10:6379\r\n>>> Send CLUSTER MEET to node 172.30.63.4:6379 to make it join the cluster.\r\nWaiting for the cluster to join\r\n\r\n>>> Configure node as replica of 172.30.254.10:6379.\r\n[OK] New node added correctly.\r\n<\/code><\/pre>\n\u5217\u51fa\u4e3b\u673a\u548c\u4ece\u673a\uff0c\u5e76\u786e\u8ba4\u72b6\u6001\u3002<\/h4>\n172.30.254.8:6379> cluster nodes\r\n2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379@16379 slave 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 0 1564559113000 6 connected\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 master - 0 1564559115804 2 connected 5461-10922\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564559113000 3 connected 10923-16383\r\nf4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379@16379 master - 0 1564559114799 0 connected\r\n63e279bbd0fd303240248dc530968ff8e0177d33 172.30.63.4:6379@16379 slave f4631fb91f42024db54a829dfc00a12e9035761e 0 1564559112789 0 connected\r\ncfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379@16379 slave e3246d584d2390f7775ff168da4f8838939c6e53 0 1564559114000 5 connected\r\n3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379@16379 slave 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 0 1564559114000 4 connected\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 myself,master - 0 1564559111000 1 connected 0-5460\r\n<\/code><\/pre>\n\u7531\u4e8e\u53ef\u4ee5\u6dfb\u52a0\u7fa4\u96c6\u7684\u4e3b\u63a7\u548c\u4ece\u63a7\u914d\u7f6e\uff0c\u56e0\u6b64\u8fdb\u884c\u4e86\u91cd\u65b0\u5e73\u8861\u64cd\u4f5c\u3002<\/h2>\n
\u7531\u4e8e\u53ef\u4ee5\u6dfb\u52a0Redis\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u7684Pod\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u5bf9\u73b0\u6709\u7684Redis\u4e3b\u8282\u70b9\u8fdb\u884c\u6570\u636e\u91cd\u65b0\u5e73\u8861\uff0c\u4ee5\u786e\u4fdd\u6dfb\u52a0\u7684Redis\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u80fd\u591f\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n
$ kubectl exec redis-cluster-0 -- redis-cli --cluster rebalance --cluster-use-empty-masters \\\r\n> $(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379\r\n>>> Performing Cluster Check (using node 172.30.254.8:6379)\r\n[OK] All nodes agree about slots configuration.\r\n>>> Check for open slots...\r\n>>> Check slots coverage...\r\n[OK] All 16384 slots covered.\r\n>>> Rebalancing across 4 nodes. Total weight = 4.00\r\nMoving 1366 slots from 172.30.103.132:6379 to 172.30.254.10:6379\r\n###### \u7701\u7565\r\nMoving 1365 slots from 172.30.63.2:6379 to 172.30.254.10:6379\r\n###### \u7701\u7565\r\nMoving 1365 slots from 172.30.254.8:6379 to 172.30.254.10:6379\r\n###### \u7701\u7565\r\n<\/code><\/pre>\n\u8fd9\u6837\u4e00\u6765\uff0c\u4e3b\u63a7\u548c\u4ece\u63a7\u7684\u6269\u5c55\u5de5\u4f5c\u5c31\u5b8c\u6210\u4e86\u3002<\/p>\n
\u7f29\u5c0fRedis\u96c6\u7fa4\uff0c\u51cf\u5c11Redis\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u7684\u96c6\u5408\u3002<\/h1>\n
\u4e0b\u4e00\u6b65\u662fRedis\u96c6\u7fa4\u7684\u7f29\u5c0f\u65b9\u6cd5\u3002\u4ec5\u51cf\u5c11\u6709\u6570\u636e\u7684Redis\u96c6\u7fa4\u7684\u6709\u72b6\u6001\u590d\u5236\u54c1\u6570\u91cf\u662f\u4e0d\u591f\u7684\u3002\u56e0\u6b64\uff0c\u6211\u5c06\u8fd9\u4e2a\u6b65\u9aa4\u5217\u4e3a\u4ee5\u4e0b\u9879\u76ee\uff1a<\/p>\n
\n- \n
\u524a\u9664\u5bfe\u8c61\u306eRedis\u30de\u30b9\u30bf\u30fc\u306e\u30b9\u30ec\u30fc\u30d6\u3092\u524a\u9664<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u524a\u9664\u5bfe\u8c61\u306eRedis\u30de\u30b9\u30bf\u30fc\u304b\u3089\u30c7\u30fc\u30bf\u3092\u4ed6\u306e\u30de\u30b9\u30bf\u30fc\u3078\u8ffd\u3044\u51fa\u3057<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
Redis\u30af\u30e9\u30b9\u30bf\u304b\u3089\u524a\u9664\u5bfe\u8c61\u306eRedis\u30de\u30b9\u30bf\u30fc\u3092\u524a\u9664<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
\u6b8b\u3063\u305fRedis\u30de\u30b9\u30bf\u30fc\u9593\u3067\u30c7\u30fc\u30bf\u3092\u30ea\u30d0\u30e9\u30f3\u30b9<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\u30b9\u30c6\u30fc\u30c8\u30d5\u30eb\u30bb\u30c3\u30c8\u306e\u30dd\u30c3\u30c9\u6570\u3092\u6e1b\u3089\u3057\u3066\u3001Redis\u30af\u30e9\u30b9\u30bf\u306e\u898f\u6a21\u3092\u7e2e\u5c0f<\/ul>\n\u5f53\u4f7f\u7528\u6709\u72b6\u6001\u526f\u672c\u96c6\u6765\u51cf\u5c11\u526f\u672c\u6570\u91cf\u65f6\uff0c\u4f1a\u6309\u7167\u6700\u540e\u6dfb\u52a0\u7684\u987a\u5e8f\u8fdb\u884c\u5220\u9664\u3002\u56e0\u6b64\uff0c\u5982\u679c\u901a\u77e5\u526f\u672c\u6570\u91cf\u4e3a6\uff0c\u5219\u4f1a\u5220\u9664\u6700\u540e\u6dfb\u52a0\u7684redis-cluster-7\u548credis-cluster-6\u3002<\/p>\n
\u5220\u9664\u5974\u96b6<\/h2>\n
\u5c06\u8981\u5220\u9664\u7684Redis\u96c6\u7fa4”redis-cluster-7″\u7684Redis\u96c6\u7fa4ID\u505a\u4e2a\u5907\u5fd8\u3002<\/p>\n
$ kubectl exec redis-cluster-7 -- redis-cli cluster nodes | grep myself\r\n63e279bbd0fd303240248dc530968ff8e0177d33 172.30.63.4:6379@16379 myself,slave f4631fb91f42024db54a829dfc00a12e9035761e 0 1564559920000 7 connected\r\n<\/code><\/pre>\n\u5728 Redis \u4e3b\u670d\u52a1\u5668 redis-cluster-0 \u4e0a\u6267\u884c\u5220\u9664 redis-cluster-7 \u7684\u547d\u4ee4\u3002<\/p>\n
$ kubectl exec redis-cluster-0 -- redis-cli --cluster del-node \\\r\n> $(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379 \\\r\n> 63e279bbd0fd303240248dc530968ff8e0177d33\r\n>>> Removing node 63e279bbd0fd303240248dc530968ff8e0177d33 from cluster 172.30.254.8:6379\r\n>>> Sending CLUSTER FORGET messages to the cluster...\r\n>>> SHUTDOWN the node.\r\ncommand terminated with exit code 1\r\n<\/code><\/pre>\n\u6211\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\u9000\u51fa\u4ee3\u7801\u4e3a1\u800c\u7ed3\u675f\uff0c\u4f46\u5220\u9664\u6210\u529f\u4e86\u3002<\/p>\n
\u6211\u6765\u786e\u8ba4\u4e00\u4e0b\u4ece\u8282\u70b9\u5df2\u7ecf\u6d88\u5931\u3002\u5220\u9664\u540e\uff0c\u4e3b\u8282\u70b9\u67094\u4e2a\uff0c\u4ece\u8282\u70b9\u67093\u4e2a\u3002<\/p>\n
## \u6d88\u3059\u524d\r\n172.30.254.8:6379> cluster nodes\r\n2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379@16379 slave 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 0 1564559113000 6 connected\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 master - 0 1564559115804 2 connected 5461-10922\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564559113000 3 connected 10923-16383\r\nf4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379@16379 master - 0 1564559114799 0 connected\r\n63e279bbd0fd303240248dc530968ff8e0177d33 172.30.63.4:6379@16379 slave f4631fb91f42024db54a829dfc00a12e9035761e 0 1564559112789 0 connected\r\ncfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379@16379 slave e3246d584d2390f7775ff168da4f8838939c6e53 0 1564559114000 5 connected\r\n3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379@16379 slave 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 0 1564559114000 4 connected\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 myself,master - 0 1564559111000 1 connected 0-5460\r\n\r\n## \u524a\u9664\u5f8c\r\n172.30.254.8:6379> cluster nodes\r\n2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379@16379 slave 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 0 1564560086177 6 connected\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 master - 0 1564560085000 2 connected 6827-10922\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564560085176 3 connected 12288-16383\r\nf4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379@16379 master - 0 1564560085000 8 connected 0-1364 5461-6826 10923-12287\r\ncfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379@16379 slave e3246d584d2390f7775ff168da4f8838939c6e53 0 1564560084171 5 connected\r\n3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379@16379 slave 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 0 1564560083000 4 connected\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 myself,master - 0 1564560082000 1 connected 1365-5460\r\n<\/code><\/pre>\n\u5220\u9664Redis\u4e3b\u8282\u70b9<\/h2>\n
\u8bf7\u8bb0\u4e0b\u8981\u5220\u9664\u7684Redis\u4e3b\u8282\u70b9\u7684ID\u3002\u83b7\u53d6\u540d\u4e3aredis-cluster-6\u7684Pod\u4e2d\u7684Redis\u96c6\u7fa4ID\u7684\u547d\u4ee4\u5982\u4e0b\u3002<\/p>\n
$ kubectl exec redis-cluster-6 -- redis-cli cluster nodes | grep myself\r\nf4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379@16379 myself,master - 0 1564562825000 8 connected 0-1364 5461-6826 10923-12287\r\n\r\n$ kubectl get pod -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nredis-cli 1\/1 Running 0 65m 172.30.254.11 10.193.10.14\r\nredis-cluster-0 1\/1 Running 0 104m 172.30.254.8 10.193.10.14\r\nredis-cluster-1 1\/1 Running 0 102m 172.30.103.132 10.193.10.58\r\nredis-cluster-2 1\/1 Running 0 100m 172.30.63.2 10.193.10.20\r\nredis-cluster-3 1\/1 Running 0 98m 172.30.254.9 10.193.10.14\r\nredis-cluster-4 1\/1 Running 0 96m 172.30.63.3 10.193.10.20\r\nredis-cluster-5 1\/1 Running 0 94m 172.30.103.133 10.193.10.58\r\nredis-cluster-6 1\/1 Running 0 70m 172.30.254.10 10.193.10.14\r\nredis-cluster-7 1\/1 Running 1 69m 172.30.63.4 10.193.10.20\r\n<\/code><\/pre>\n\u6267\u884c\u6570\u636e\u8fc1\u79fb\u7684reshard\u64cd\u4f5c<\/h2>\n
\u5c06\u5b58\u50a8\u5728 Redis \u4e3b\u8282\u70b9\u201credis-cluster-6\u201d\u7684\u6570\u636e\u8f6c\u79fb\u5230\u5176\u4ed6 Redis \u4e3b\u8282\u70b9\u3002
\n–cluster-from \u662f\u6307\u201credis-cluster-6\u201d\u7684ID\u3002
\n–cluster-to \u662f\u6307\u201credis-cluster-0\u201d\u7684ID\u3002<\/p>\n
\u6362\u53e5\u8bdd\u8bf4\uff0c\u5c06 redis-cluster-6 \u7684\u6570\u636e\u4f20\u8f93\u5230 redis-cluster-0\u3002\u7136\u540e\uff0c\u7a0d\u540e\u4f1a\u518d\u6b21\u8fdb\u884c\u91cd\u65b0\u5e73\u8861\uff0c\u56e0\u6b64\u8fd9\u5c06\u662f\u4e00\u4e2a\u4e34\u65f6\u8f6c\u79fb\u3002<\/p>\n
$ kubectl exec redis-cluster-0 -- redis-cli --cluster reshard --cluster-yes \u00a5\r\n--cluster-from f4631fb91f42024db54a829dfc00a12e9035761e \u00a5\r\n--cluster-to 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 \u00a5\r\n--cluster-slots 16384 $(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379\r\n>>> Performing Cluster Check (using node 172.30.254.8:6379)\r\nM: 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379\r\n slots:[1365-5460] (4096 slots) master\r\n 1 additional replica(s)\r\nS: 2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379\r\n slots: (0 slots) slave\r\n replicates 901cdffd0f11f30e09ba2c22540ca2d31f1219e2\r\nM: e3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379\r\n slots:[6827-10922] (4096 slots) master\r\n 1 additional replica(s)\r\nM: 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379\r\n slots:[12288-16383] (4096 slots) master\r\n 1 additional replica(s)\r\nM: f4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379\r\n slots:[0-1364],[5461-6826],[10923-12287] (4096 slots) master\r\nS: cfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379\r\n slots: (0 slots) slave\r\n replicates e3246d584d2390f7775ff168da4f8838939c6e53\r\nS: 3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379\r\n slots: (0 slots) slave\r\n replicates 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe\r\n[OK] All nodes agree about slots configuration.\r\n>>> Check for open slots...\r\n>>> Check slots coverage...\r\n[OK] All 16384 slots covered.\r\n\r\nReady to move 16384 slots.\r\n Source nodes:\r\n M: f4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379\r\n slots:[0-1364],[5461-6826],[10923-12287] (4096 slots) master\r\n Destination node:\r\n M: 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379\r\n slots:[1365-5460] (4096 slots) master\r\n 1 additional replica(s)\r\n Resharding plan:\r\n Moving slot 0 from f4631fb91f42024db54a829dfc00a12e9035761e\r\n Moving slot 1 from f4631fb91f42024db54a829dfc00a12e9035761e\r\n Moving slot 2 from f4631fb91f42024db54a829dfc00a12e9035761e\r\n<\/code><\/pre>\n\u8303\u56f4\u4e3af4631fb91f42024db54a829dfc00a12e9035761e\u7684\u54c8\u5e0c\u69fd\u672a\u663e\u793a\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u6570\u636e\u4eceredis-cluster-6\u4e22\u5931\u4e86\u3002<\/p>\n
$ kubectl exec redis-cluster-6 -- redis-cli cluster nodes | grep master\r\nf4631fb91f42024db54a829dfc00a12e9035761e 172.30.254.10:6379@16379 myself,master - 0 1564574487000 8 connected\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 master - 0 1564574488000 10 connected 0-6826 10923-12287\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 master - 0 1564574490000 2 connected 6827-10922\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564574485735 9 connected 12288-16383\r\nimac:redis-cluster maho$ kubectl get po -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nredis-cli 1\/1 Running 0 4h19m 172.30.254.11 10.193.10.14\r\nredis-cluster-0 1\/1 Running 0 4h58m 172.30.254.8 10.193.10.14\r\nredis-cluster-1 1\/1 Running 0 4h56m 172.30.103.132 10.193.10.58\r\nredis-cluster-2 1\/1 Running 0 4h54m 172.30.63.2 10.193.10.20\r\nredis-cluster-3 1\/1 Running 0 4h52m 172.30.254.9 10.193.10.14\r\nredis-cluster-4 1\/1 Running 0 4h50m 172.30.63.3 10.193.10.20\r\nredis-cluster-5 1\/1 Running 0 4h48m 172.30.103.133 10.193.10.58\r\nredis-cluster-6 1\/1 Running 0 4h25m 172.30.254.10 10.193.10.14\r\nredis-cluster-7 1\/1 Running 1 4h23m 172.30.63.4 10.193.10.20\r\n<\/code><\/pre>\n\u4eceRedis\u96c6\u7fa4\u4e2d\u5220\u9664Redis\u4e3b\u8282\u70b9redis-cluster-6\u3002<\/h2>\n
\u7531\u4e8e\u6211\u4eec\u5df2\u7ecf\u4eceRedis\u4e3b\u8282\u70b9redis-cluster-6\u4e2d\u5c06\u6570\u636e\u8fc1\u79fb\u51fa\u6765\uff0c\u6240\u4ee5\u6211\u4eec\u5c06\u4eceRedis\u96c6\u7fa4\u4e2d\u5220\u9664redis-cluster-6\u3002<\/p>\n
kubectl exec redis-cluster-0 -- redis-cli --cluster del-node \\\r\n$(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379 \\\r\nf4631fb91f42024db54a829dfc00a12e9035761e\r\n<\/code><\/pre>\n\u786e\u8ba4\u7ed3\u679c\u662f\u5220\u9664\u3002\u6211\u4eec\u53ef\u4ee5\u770b\u51faRedis\u7684\u4e3b\u8282\u70b9\u5df2\u7ecf\u51cf\u5c11\u52303\u4e2a\u4e86\u3002<\/p>\n
172.30.103.132:6379> cluster nodes\r\ncfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379@16379 slave e3246d584d2390f7775ff168da4f8838939c6e53 0 1564574917531 5 connected\r\n2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379@16379 slave 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 0 1564574919544 10 connected\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564574920548 9 connected 12288-16383\r\n3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379@16379 slave 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 0 1564574919000 9 connected\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 myself,master - 0 1564574919000 2 connected 6827-10922\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 master - 0 1564574920000 10 connected 0-6826 10923-12287\r\n<\/code><\/pre>\n\u5220\u9664\u540e\uff0c\u6570\u636e\u91cd\u65b0\u5e73\u8861<\/h2>\n
\u6700\u540e\uff0c\u8fdb\u884c\u4e00\u6b21\u518d\u5e73\u8861\u64cd\u4f5c\uff0c\u4ee5\u5b9e\u73b0\u8d44\u4ea7\u5747\u8861\u3002<\/p>\n
$ kubectl exec redis-cluster-0 -- redis-cli --cluster rebalance --cluster-use-empty-masters \\\r\n> $(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379\r\n>>> Performing Cluster Check (using node 172.30.254.8:6379)\r\n[OK] All nodes agree about slots configuration.\r\n>>> Check for open slots...\r\n>>> Check slots coverage...\r\n[OK] All 16384 slots covered.\r\n>>> Rebalancing across 3 nodes. Total weight = 3.00\r\nMoving 1366 slots from 172.30.254.8:6379 to 172.30.103.132:6379\r\n###### \u7701\u7565\r\nMoving 1365 slots from 172.30.254.8:6379 to 172.30.63.2:6379\r\n###### \u7701\u7565\r\n<\/code><\/pre>\n\u786e\u8ba4\u91cd\u65b0\u5e73\u8861\u540e\u7684\u72b6\u6001\u3002<\/p>\n
172.30.103.132:6379> cluster nodes\r\ncfc0a7bb96305308cc35fd6af37b59b2e2b117ae 172.30.63.3:6379@16379 slave e3246d584d2390f7775ff168da4f8838939c6e53 0 1564575387676 11 connected\r\n2b4a9d44f3576c239101afc16a002db6cc19be2f 172.30.103.133:6379@16379 slave 901cdffd0f11f30e09ba2c22540ca2d31f1219e2 0 1564575390000 10 connected\r\n9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 172.30.63.2:6379@16379 master - 0 1564575389000 12 connected 1366-2730 12288-16383\r\n3309f5c2f345f4d4facd5af967588d794225fef1 172.30.254.9:6379@16379 slave 9a3951b4d0fd3c78a927ccb6e43ff62fe7875fbe 0 1564575388000 12 connected\r\ne3246d584d2390f7775ff168da4f8838939c6e53 172.30.103.132:6379@16379 myself,master - 0 1564575388000 11 connected 0-1365 6827-10922\r\n901cdffd0f11f30e09ba2c22540ca2d31f1219e2 172.30.254.8:6379@16379 master - 0 1564575390694 10 connected 2731-6826 10923-12287\r\n<\/code><\/pre>\n\u51cf\u5c11\u6709\u72b6\u6001Pod\u7684\u6570\u91cf\uff0c\u7f29\u5c0fRedis\u96c6\u7fa4\u7684\u89c4\u6a21\u3002<\/h2>\n
\u6700\u540e\uff0c\u6211\u4eec\u5c06\u72b6\u6001\u96c6\u5408\u7684\u526f\u672c\u6570\u91cf\u51cf\u5c11\u52306\uff0c\u5e76\u89c2\u5bdfredis-cluster-6\u548credis-cluster-7\u88ab\u5220\u9664\u7684\u60c5\u51b5\u3002<\/p>\n
$ kubectl get po -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nredis-cli 1\/1 Running 0 4h35m 172.30.254.11 10.193.10.14\r\nredis-cluster-0 1\/1 Running 0 5h14m 172.30.254.8 10.193.10.14\r\nredis-cluster-1 1\/1 Running 0 5h12m 172.30.103.132 10.193.10.58\r\nredis-cluster-2 1\/1 Running 0 5h10m 172.30.63.2 10.193.10.20\r\nredis-cluster-3 1\/1 Running 0 5h8m 172.30.254.9 10.193.10.14\r\nredis-cluster-4 1\/1 Running 0 5h6m 172.30.63.3 10.193.10.20\r\nredis-cluster-5 1\/1 Running 0 5h4m 172.30.103.133 10.193.10.58\r\nredis-cluster-6 1\/1 Running 1 4h41m 172.30.254.10 10.193.10.14\r\nredis-cluster-7 1\/1 Running 1 4h39m 172.30.63.4 10.193.10.20\r\n\r\n$ kubectl scale statefulset redis-cluster --replicas=6\r\nstatefulset.apps\/redis-cluster scaled\r\n\r\n$ kubectl get po -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nredis-cli 1\/1 Running 0 4h38m 172.30.254.11 10.193.10.14\r\nredis-cluster-0 1\/1 Running 0 5h17m 172.30.254.8 10.193.10.14\r\nredis-cluster-1 1\/1 Running 0 5h15m 172.30.103.132 10.193.10.58\r\nredis-cluster-2 1\/1 Running 0 5h13m 172.30.63.2 10.193.10.20\r\nredis-cluster-3 1\/1 Running 0 5h11m 172.30.254.9 10.193.10.14\r\nredis-cluster-4 1\/1 Running 0 5h9m 172.30.63.3 10.193.10.20\r\nredis-cluster-5 1\/1 Running 0 5h7m 172.30.103.133 10.193.10.58\r\n<\/code><\/pre>\nRedis\u96c6\u7fa4\u7684\u7f29\u5bb9\u64cd\u4f5c\u5df2\u5b8c\u6210\u3002<\/p>\n
\u6e05\u7406\u7c07\u96c6<\/h1>\n
\u4ee5\u4e0b\u662f\u5220\u9664\u6bcf\u4e2a\u6301\u4e45\u5377\u3001\u5168\u90e8\u8282\u70b9\u63a7\u5236\u5668\u3001\u4ee5\u53ca\u5176\u7ba1\u7406\u4e0b\u7684Pod\u548c\u670d\u52a1\u7684\u65b9\u6cd5\u3002<\/p>\n
$ kubectl delete statefulset,svc,configmap,pvc -l app=redis-cluster\r\nstatefulset.apps \"redis-cluster\" deleted\r\nservice \"redis-cluster\" deleted\r\nconfigmap \"redis-cluster\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-0\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-1\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-2\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-3\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-4\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-5\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-6\" deleted\r\npersistentvolumeclaim \"data-redis-cluster-7\" deleted\r\n<\/code><\/pre>\n\u4f5c\u8005\u5728\u6700\u540e\u9644\u4e0a\u7684\u8bdd<\/h1>\n
\u6211\u5bf9Red Hat\u63a8\u51fa\u7684\u8fd0\u7b97\u7b26\u80fd\u591f\u63d0\u4f9b\u65b9\u4fbf\u5b9e\u7528\u7684\u5de5\u4f5c\u65b9\u5f0f\u975e\u5e38\u611f\u5174\u8da3\u3002\u5728\u6b64\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u5148\u786e\u8ba4\u5982\u4f55\u5728\u591a\u4e2a\u533a\u57df\u90e8\u7f72\u3002<\/p>\n
\u8bf7\u63d0\u4f9b\u53c2\u8003\u6587\u732e<\/h1>\nhttps:\/\/github.com\/sanderploegsma\/redis-cluster \u7684\u5185\u5bb9\u8fdb\u884c\u4e2d\u6587\u7ffb\u8bd1<\/ol>\n","protected":false},"excerpt":{"rendered":"\u4ee5\u4e0b\u662f\u5173\u4e8e\u5728Kubernetes\u4e0a\u6784\u5efa\u3001\u6269\u5c55\u3001\u7f29\u5c0f\u548c\u5220\u9664Redis\u96c6\u7fa4\u7684\u751f\u547d\u5468\u671f\u7684K8s\u548cRedis\u64cd\u4f5c\u6b65\u9aa4\u7684 […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-33934","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
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