\u672c\u6587\u5c06\u8be6\u7ec6\u89e3\u91ca\u5728\u963f\u91cc\u5df4\u5df4\u4e91\u4e0a\u4f7f\u7528Kubernetes\u8bbe\u7f6eCassandra\u7684\u65b9\u6cd5\u3002<\/p>\n
\u8fd9\u662f\u7531Alibaba Cloud\u793e\u533a\u535a\u5ba2\u7684\u4f5c\u8005Alex\u6240\u5199\u7684\u3002<\/p>\n
\u5728Kubernetes\u7cfb\u5217\u4e2d\uff0c\u6211\u4eec\u8ba8\u8bba\u4e86\u5bb9\u5668\u5316\u3001\u5e94\u7528\u7a0b\u5e8f\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\u3001\u591a\u4e2a\u5bb9\u5668\u955c\u50cf\u7684\u90e8\u7f72\u4ee5\u53ca\u5fae\u670d\u52a1\uff0c\u5e76\u89e3\u91ca\u4e86\u4e00\u4e9b\u76f8\u5173\u7684\u5b9e\u8df5\u3002\u4f46\u662f\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u8fdb\u4e00\u6b65\u63a2\u8ba8\u4e0e\u6709\u72b6\u6001\u670d\u52a1\u76f8\u5173\u7684\u6982\u5ff5\u3002<\/p>\n
\u5728\u50cf\u6570\u636e\u5e93\u7fa4\u96c6\u8fd9\u6837\u7684\u6709\u72b6\u6001\u8d1f\u8f7d\u4e2d\uff0c\u7531\u4e8e\u4e0d\u4f7f\u7528Replica Set\uff0c\u56e0\u6b64\u9700\u8981\u91c7\u53d6\u4e0d\u540c\u7684\u65b9\u6cd5\u3002\u4f7f\u7528StatefulSet\u53ef\u4ee5\u90e8\u7f72\u3001\u7ba1\u7406\u548c\u6269\u5c55\u4f20\u7edf\u7684\u8d1f\u8f7d\uff0c\u4f8b\u5982\u6570\u636e\u5e93\u3002\u4f7f\u7528StatefulSet\u53ef\u4ee5\u786e\u4fdd\u4ee5\u4e0b\u5185\u5bb9\uff0c\u5e76\u63d0\u5347\u5177\u6709\u6301\u4e45\u6027\u548c\u6709\u72b6\u6001\u7684\u5206\u5e03\u5f0f\u7cfb\u7edf\u3002<\/p>\n
<\/p>\n
<\/p>\n
\u6709\u72b6\u6001\u96c6\u786e\u4fdd\u4e86Pod\u7684\u987a\u5e8f\u548c\u552f\u4e00\u6027\uff0c\u4ee5\u6709\u6548\u5730\u6267\u884c\u670d\u52a1\u3002\u4e3a\u4e86\u786e\u4fdd\u4f9d\u8d56\u4e8e\u53ef\u7528\u77e5\u8bc6\u72b6\u6001\u7684\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u5e73\u7a33\u8fd0\u884c\uff0c\u72b6\u6001\u5728Pod\u542f\u52a8\u65f6\u548c\u91cd\u542f\u65f6\u4f5c\u4e3a\u7ed3\u679c\u88ab\u4fdd\u6301\u3002<\/p>\n
\u4f5c\u4e3a\u4e00\u4e2a\u4f8b\u5b50\uff0c\u5e94\u7528\u7a0b\u5e8f\u548c\u5ba2\u6237\u7aef\u53ef\u4ee5\u5c06\u6570\u636e\u4fdd\u5b58\u5728\u670d\u52a1\u5668\u5185\u7684\u6c38\u4e45\u78c1\u76d8\u5b58\u50a8\uff0c\u5982\u6570\u636e\u5e93\u548c\u952e\u503c\u5b58\u50a8\u7b49\uff0c\u4ee5\u4fbf\u8bbf\u95ee\u6b64\u7c7b\u6570\u636e\u3002\u672c\u6559\u7a0b\u5c06\u5c55\u793a\u5982\u4f55\u90e8\u7f72Cassandra\u6570\u636e\u5e93\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u63a2\u7d22\u8fd9\u4e2a\u6982\u5ff5\u3002<\/p>\n
\u8fd9\u4e2a\u6559\u7a0b\u7684\u8981\u6c42\u5982\u4e0b\u3002<\/p>\n
Docker Hub\u30a2\u30ab\u30a6\u30f3\u30c8
\n\u30ea\u30dd\u30b8\u30c8\u30ea\u304b\u3089\u306eCassandra\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a4\u30e1\u30fc\u30b8<\/p>\n
\u8fd9\u4e2a\u6559\u7a0b\u901a\u8fc7\u660e\u786e\u8bf4\u660e\u4ee5\u4e0b\u51e0\u70b9\u6765\u5e2e\u52a9\u5927\u5bb6\u7406\u89e3Kubernetes\u7684\u6982\u5ff5\u3002<\/p>\n
<\/p>\n
<\/p>\n
\u5728\u8fc7\u53bb\u7684\u7cfb\u5217\u4e2d\uff0c\u6211\u4eec\u8be6\u7ec6\u89e3\u91ca\u4e86Pod\u3001\u670d\u52a1\u548cReplicaSets\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u5e76\u4ecb\u7ecd\u4e86\u5728\u4e09\u8282\u70b9\u96c6\u7fa4\u4e2d\u914d\u7f6e\u548c\u90e8\u7f72Kubeadm\u548cKubectl\u7684\u6b65\u9aa4\u3002<\/p>\n
\u5728\u4e0a\u4e00\u90e8\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e863\u53f0\u670d\u52a1\u5668\u6765\u642d\u5efaKubernetes\u96c6\u7fa4\u3002\u4f46\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u91c7\u7528Cassandra SeedProvider\uff0c\u5e76\u5229\u7528StatefulSets\u6765\u63a2\u6d4b\u5728\u96c6\u7fa4\u5185\u90e8\u90e8\u7f72\u7684Cassandra\u8282\u70b9\u3002<\/p>\n
\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u3002<\/p>\n
sudo nano \/etc\r\n<\/code><\/pre>\n\u4f7f\u7528\u5728\u4ee5\u4e0b\u94fe\u63a5\u63d0\u4f9b\u7684\u793a\u4f8b\u6587\u4ef6\uff0c\u8fdb\u884c\u90e8\u7f72\u3002<\/p>\n
\n- \n
cassandra-service.yaml<\/ul>\n<\/li>\n<\/ul>\ncassandra-statefulset.yaml
\n\u6b21\u306b\u3001\u4e0a\u8a18\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u683c\u7d0d\u3059\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
cd ~\r\nmkdir application\r\ncd application\r\nmkdir cassandra\r\ncd cassandra\r\nwget https:\/\/kubernetes.io\/examples\/application\/cassandra\/cassandra-service.yaml\r\nwget https:\/\/kubernetes.io\/examples\/application\/cassandra\/cassandra-statefulset.yaml\r\n<\/code><\/pre>\nCassandra\u7684\u65e0\u5934\u670d\u52a1<\/h1>\n
Kubernetes\u652f\u6301\u5e38\u89c4\u670d\u52a1\u548c\u65e0\u5934\u670d\u52a1\u7684\u53cc\u91cd\u652f\u6301\u3002\u8fd9\u4e24\u79cd\u670d\u52a1\u7684\u4e3b\u8981\u533a\u522b\u662f\uff0c\u5e38\u89c4\u670d\u52a1\u5728\u670d\u52a1IP\u4e0a\u52a0\u8f7dPod\uff0c\u5e76\u5728\u540e\u53f0\u7ba1\u7406DNS\u6761\u76ee\u3002\u800c\u65e0\u5934\u670d\u52a1\u6ca1\u6709\u670d\u52a1IP\uff0c\u56e0\u6b64\u4e0e\u5e38\u89c4\u670d\u52a1\u76f8\u6bd4\u4e0d\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u3002\u65e0\u5934\u670d\u52a1\u4f7f\u7528\u6307\u5411Pod\u7684\u8bb0\u5f55\uff0c\u8fd9\u5bf9\u4e8eCassandra\u6765\u8bf4\u975e\u5e38\u6709\u6548\uff0c\u56e0\u4e3a\u5b83\u4e0d\u9700\u8981\u8d1f\u8f7d\u5747\u8861\uff0c\u8282\u70b9\u53ef\u4ee5\u76f4\u63a5\u8fde\u63a5\u5230\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u5c06\u8fde\u63a5\u5230cassandra.data.svc.cluster.local\u3002\u6240\u9009\u56fe\u50cf\u4f4d\u4e8e\u4ee5\u4e0bDocker\u56fe\u50cf\u94fe\u63a5\u4e2d\u3002<\/p>\n
Cassandra\u65e0\u5934\u670d\u52a1\u4f1a\u5217\u51fa\u6258\u7ba1Cassandra\u5b9e\u4f8b\u7684\u5bb9\u5668\u7ec4\u3002\u7b2c\u4e00\u6b65\u662f\u4f7f\u7528DNS\u521b\u5efa\u4e00\u4e2a\u5c06Cassandra\u5bb9\u5668\u7ec4\u548c\u5ba2\u6237\u7aef\u94fe\u63a5\u5728\u4e00\u8d77\u7684\u670d\u52a1\u3002\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u6765\u786e\u4fdd\u6587\u4ef6\u4e0b\u8f7d\u6210\u529f\u3002<\/p>\n
sudo nano application\/cassandra\/cassandra-service.yaml\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u7247\u6bb5\u663e\u793a\u4e86\u4e0a\u8ff0\u547d\u4ee4\u7684\u8f93\u51fa\u3002<\/p>\n
application\/cassandra\/cassandra-service.yaml \r\napiVersion: v1\r\nkind: Service\r\nmetadata:\r\n labels:\r\n app: cassandra\r\n name: cassandra\r\n namespace: data\r\nspec:\r\n clusterIP: None\r\n ports:\r\n - port: 9042\r\n selector:\r\n app: cassandra\r\n<\/code><\/pre>\n\u5f53\u6587\u4ef6\u4e0b\u8f7d\u5b8c\u6210\u540e\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u4ece\u6587\u4ef6\u4e2d\u521b\u5efaCassandra\u670d\u52a1\u3002<\/p>\n
kubectl apply -f \/home\/flasky\/application\/cassandra\/cassandra-service.yaml\r\n<\/code><\/pre>\n\u5982\u679c\u96c6\u7fa4\u6ca1\u6709\u6b63\u786e\u5b89\u88c5\uff0c\u5c06\u4f1a\u53d1\u751f\u4ee5\u4e0b\u9519\u8bef\u3002<\/p>\n
error: unable to recognize \"https:\/\/k8s.io\/examples\/application\/cassandra\/cassandra-service.yaml\": Get http:\/\/localhost:8080\/api?timeout=32s: dial tcp [::1]:8080: connect: connection refused\r\n<\/code><\/pre>\n\u8981\u4fee\u590d\u6b64\u9519\u8bef\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0bcalico\u7f51\u7edc\u547d\u4ee4\uff1a<\/p>\n
sudo kubeadm init –pod-network-cidr=192.168.0.0\/16
\nmkdir -p $HOME\/.kube
\nsudo cp -i \/etc\/kubernetes\/admin.conf $HOME\/.kube\/config
\nsudo chown $(id -u):$(id -g) $HOME\/.kube\/config<\/p>\n
\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u9519\u8bef\uff0c\u9700\u8981\u6267\u884c\u4ee5\u4e0bcalico\u7f51\u7edc\u547d\u4ee4\uff1a<\/p>\n
sudo kubeadm init –pod-network-cidr=192.168.0.0\/16
\nmkdir -p $HOME\/.kube
\nsudo cp -i \/etc\/kubernetes\/admin.conf $HOME\/.kube\/config
\nsudo chown $(id -u):$(id -g) $HOME\/.kube\/config<\/p>\n
\u518d\u6b21\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u3002<\/p>\n
kubectl apply -f \/home\/flasky\/application\/cassandra\/cassandra-service.yaml\r\n<\/code><\/pre>\n\u8ba9\u6211\u4eec\u8fdb\u884c\u6d4b\u8bd5\u4ee5\u786e\u8ba4\u5176\u662f\u5426\u6709\u6548\u3002<\/p>\n
kubectl get svc cassandra\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u662f\u4e0a\u8ff0\u547d\u4ee4\u7684\u8f93\u51fa\u793a\u4f8b\u3002<\/p>\n
name type cluster-ip external-ip port(s) age\r\ncassandra ClusterIP None <none> 9042\/TCP 57s\r\n<\/code><\/pre>\n\u521b\u5efaCassandra Ring<\/h1>\n
\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u7531\u4e09\u4e2a\u8282\u70b9\u7ec4\u6210\u7684Cassandra\u73af\u3002\u9996\u5148\uff0c\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u67e5\u770b\u4e0b\u8f7d\u7684\u7b2c\u4e8c\u4e2a\u6587\u4ef6\u3002<\/p>\n
sudo nano application\/cassandra\/cassandra-statefulset.yaml\r\n<\/code><\/pre>\n\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\uff0c\u5c06\u56fe\u7247\u94fe\u63a5\u66ff\u6362\u4e3aDocker\u56fe\u7247\u94fe\u63a5\u3002<\/p>\n
application\/cassandra\/cassandra-statefulset.yaml \r\n\r\napiVersion: apps\/v1\r\nkind: StatefulSet\r\nmetadata:\r\n name: cassandra\r\n labels:\r\n app: cassandra\r\nspec:\r\n serviceName: cassandra\r\n replicas: 3\r\n selector:\r\n matchLabels:\r\n app: cassandra\r\n template:\r\n metadata:\r\n labels:\r\n app: cassandra\r\n spec:\r\n terminationGracePeriodSeconds: 1800\r\n containers:\r\n - name: cassandra\r\n image: gcr.io\/google-samples\/cassandra@sha256:7a3d20afa0a46ed073a5c587b4f37e21fa860e83c60b9c42fec1e1e739d64007\r\n imagePullPolicy: Always\r\n ports:\r\n - containerPort: 7000\r\n name: intra-node\r\n - containerPort: 7001\r\n name: tls-intra-node\r\n - containerPort: 7199\r\n name: jmx\r\n - containerPort: 9042\r\n name: cql\r\n resources:\r\n limits:\r\n cpu: \"500m\"\r\n memory: 1Gi\r\n requests:\r\n cpu: \"500m\"\r\n memory: 1Gi\r\n securityContext:\r\n capabilities:\r\n add:\r\n - IPC_LOCK\r\n lifecycle:\r\n preStop:\r\n exec:\r\n command: \r\n - \/bin\/sh\r\n - -c\r\n - nodetool drain\r\n env:\r\n - name: MAX_HEAP_SIZE\r\n value: 512M\r\n - name: HEAP_NEWSIZE\r\n value: 100M\r\n - name: CASSANDRA_SEEDS\r\n value: \"cassandra-0.cassandra.default.svc.cluster.local\"\r\n - name: CASSANDRA_CLUSTER_NAME\r\n value: \"K8Demo\"\r\n - name: CASSANDRA_DC\r\n value: \"DC1-K8Demo\"\r\n - name: CASSANDRA_RACK\r\n value: \"Rack1-K8Demo\"\r\n - name: POD_IP\r\n valueFrom:\r\n fieldRef:\r\n fieldPath: status.podIP\r\n readinessProbe:\r\n exec:\r\n command:\r\n - \/bin\/bash\r\n - -c\r\n - \/ready-probe.sh\r\n initialDelaySeconds: 15\r\n timeoutSeconds: 5\r\n volumeMounts:\r\n - name: cassandra-data\r\n mountPath: \/cassandra_data\r\n volumeClaimTemplates:\r\n - metadata:\r\n name: cassandra-data\r\n spec:\r\n accessModes: [ \"ReadWriteOnce\" ]\r\n storageClassName: fast\r\n resources:\r\n requests:\r\n storage: 1Gi\r\n---\r\nkind: StorageClass\r\napiVersion: storage.k8s.io\/v1\r\nmetadata:\r\n name: fast\r\nprovisioner: k8s.io\/minikube-hostpath\r\nparameters:\r\n type: pd-ssd\r\n<\/code><\/pre>\n\u63a5\u4e0b\u6765\uff0c\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ece\u6587\u4ef6\u521b\u5efaStatefulSet\u3002<\/p>\n
kubectl apply -f \/home\/flasky\/application\/cassandra\/cassandra-statefulset.yaml\r\n<\/code><\/pre>\n\u8bf7\u901a\u8fc7\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u786e\u8ba4\u5df2\u4e0b\u8f7d\u6587\u4ef6\u7684\u4f4d\u7f6e\u3002<\/p>\n
pwd\r\n<\/code><\/pre>\n\u5728\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u5e0c\u671b\u4e0d\u4f1a\u53d1\u751f\u9519\u8bef\uff0c\u4f46\u4e07\u4e00\u53d1\u751f\u9519\u8bef\uff0c\u8bf7\u67e5\u770b\u4e0e\u521b\u5efaCassandra\u65e0\u5934\u670d\u52a1\u76f8\u5173\u7684\u524d\u4e00\u8282\u548c\u5176\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n
\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u9a8c\u8bc1\u90e8\u7f72\u3002<\/p>\n
kubectl get statefulset cassandra\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u662f\u4e0a\u8ff0\u547d\u4ee4\u7684\u8f93\u51fa\u793a\u4f8b\uff1a<\/p>\n
NAME DESIRED CURRENT AGE\r\ncassandra 3 0 57s\r\n<\/code><\/pre>\n\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u786e\u8ba4\u5728\u521b\u5efa\u6709\u72b6\u6001\u526f\u672c\u96c6\u65f6\u5df2\u7ecf\u6307\u5b9a\u7684\u4e09\u4e2a\u526f\u672c\u6b63\u5728\u8fd0\u884c\u3002<\/p>\n
kubectl get pods -l=\"app=cassandra\u201d\r\n<\/code><\/pre>\n\u4e0b\u9762\u7684\u7247\u6bb5\u5c55\u793a\u4e86\u4e0a\u8ff0\u547d\u4ee4\u7684\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
NAME READY STATUS RESTARTS AGE\r\ncassandra-0 1\/1 Running 0 6m\r\ncassandra-1 1\/1 Running 0 3m\r\ncassandra-2 1\/1 Running 0 45s\r\n<\/code><\/pre>\n\u7b49\u5f8510\u5206\u949f\u540e\uff0c\u5982\u679c\u7b2c\u4e00\u6b21\u6267\u884c\u65f6\u6ca1\u6709\u53cd\u6620\u51fa3\u4e2a\u8282\u70b9\uff0c\u8bf7\u518d\u6b21\u6267\u884c\u547d\u4ee4\u4ee5\u9632\u5907\u3002\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u68c0\u67e5\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u3002<\/p>\n
kubectl exec -it cassandra-0 -- nodetool status\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u662f\u7ed9\u51fa\u7684\u547d\u4ee4\u8f93\u51fa\u7684\u7247\u6bb5\u3002<\/p>\n
Datacenter: DC1\r\n======================\r\nStatus=Up\/Down\r\n|\/ State=Normal\/Leaving\/Joining\/Moving\r\n-- Address Load Tokens Owns Host ID Rack\r\n192.168.0.4 98.77 KiB 32 74.0% id Rack1\r\n192.168.0.4 91.02 KiB 32 58.8% id Rack1\r\n192.168.0.4 97.56 KiB 32 67.1% id Rack1\r\n<\/code><\/pre>\n\u4f7f\u7528Kubectl\u8fdb\u884c\u6269\u5c55\u6d4b\u8bd5\u3002<\/h1>\n
\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u6765\u6d4b\u8bd5\u5df2\u90e8\u7f72\u7684StatefulSet\u7684\u53ef\u4f38\u7f29\u6027\u3002\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u67e5\u627eStatefulSet\u3002<\/p>\n
kubectl get statefulsets <stateful-set-name>\r\n<\/code><\/pre>\n\u5982\u524d\u6240\u8ff0\uff0c\u672c\u6587\u4e2d\u7684StatefulSet\u6709\u4e09\u4e2a\u526f\u672c\u3002\u7136\u800c\uff0c\u5728\u6269\u5c55\u65b9\u9762\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u8fdb\u884c\u76f8\u540c\u7684\u66f4\u6539\u3002<\/p>\n
kubectl scale statefulsets <stateful-set-name> --replicas=<10> \r\n<\/code><\/pre>\n\u5220\u9664StatefulSets<\/h1>\n
\u5728Kubernetes\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528kubectl delete\u547d\u4ee4\u6765\u5220\u9664StatefulSets\u3002\u8be5\u547d\u4ee4\u9700\u8981\u6307\u5b9aStatefulSets\u7684\u6587\u4ef6\u6216\u540d\u79f0\u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n
kubectl delete -f <Cassandra-statefulset.yaml>\r\nkubectl delete statefulsets <cassandra>\r\n<\/code><\/pre>\n\u4f7f\u7528kubectl delete\u547d\u4ee4\u5220\u9664\u65e0\u5934\u670d\u52a1\u3002<\/p>\n
kubectl delete service <cassandra-service.yaml>\r\n<\/code><\/pre>\n\u5728\u5220\u9664StatefulSets\u540e\uff0c\u7531\u4e8e\u526f\u672c\u96c6\u88ab\u8bbe\u7f6e\u4e3a\u96f6\uff0cPod\u5c06\u4f1a\u88ab\u5220\u9664\u3002\u7136\u800c\uff0c\u4e3a\u4e86\u907f\u514d\u6570\u636e\u5b8c\u5168\u4e22\u5931\uff0c\u5220\u9664StatefulSet\u65f6\u91cd\u8981\u7684\u662f\u4e0d\u8981\u6392\u9664\u76f8\u5173\u7684\u6301\u4e45\u5316\u5377\u3002<\/p>\n
\u867d\u7136\u5982\u6b64\uff0c\u8981\u5b8c\u5168\u5220\u9664StatefulSet\uff0c\u60a8\u9700\u8981\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u3002<\/p>\n
grace=$(kubectl get pods <stateful-set-pod> --template '{{.spec.terminationGracePeriodSeconds}}')\r\nkubectl delete statefulset -l app=cassandra\r\nsleep $grace\r\nkubectl delete pvc -l app=Cassandra\r\n<\/code><\/pre>\n\u8bf7\u786e\u8ba4\u5c06\u53c2\u6570\u4e2d\u7684\u201capp\u201d\u66ff\u6362\u4e3a\u7279\u5b9a\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528Cassandra\u3002<\/p>\n
\u7ea7\u8054\u5220\u9664<\/h1>\n
Kubernetes\u4e2d\u7684\u7ea7\u8054\u5220\u9664\u6982\u5ff5\u53ef\u4ee5\u5904\u7406\u957f\u65f6\u95f4\u5904\u4e8e\u4e0d\u53ef\u53d6\u72b6\u6001\u7684Pod\uff0c\u4ece\u800c\u65e0\u9700\u5728\u670d\u52a1\u5668\u4e0a\u624b\u52a8\u5220\u9664Pod\u3002\u7ea7\u8054\u6807\u5fd7\u6216\u53c2\u6570\u4ec5\u7528\u4e8e\u5220\u9664StatefulSet\u800c\u4e0d\u662fPod\uff0c\u53ef\u4ee5\u5728delete\u547d\u4ee4\u4e2d\u5305\u542b\u5982\u4e0b\uff1a<\/p>\n
kubectl delete -f <cassandra-statefulset.yaml> --cascade=false\r\n<\/code><\/pre>\n\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u540e\uff0c\u5373\u4f7f\u4f7f\u7528\u524d\u8ff0\u547d\u4ee4\u5220\u9664\u4e86StatefulSet\uff0c\u4ecd\u4f1a\u4fdd\u75593\u62164\u4e2a\u526f\u672c\uff0c\u5e76\u4fdd\u7559\u6807\u7b7e\u4e3acassandra\u7684\u8bb0\u5f55\u3002\u8bf7\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u5220\u9664\u8fd9\u4e9b\u5185\u5bb9\u3002<\/p>\n
kubectl delete pods -l app=myapp\r\n<\/code><\/pre>\n\u5bf9StatefulSet\u6587\u4ef6\u8fdb\u884c\u4fee\u6539\u3002<\/h1>\n
\u4f7f\u7528kubectl edit\u547d\u4ee4\uff0c\u53ef\u4ee5\u76f4\u63a5\u5bf9StatefulSet\u6587\u4ef6\u8fdb\u884c\u66f4\u6539\uff0c\u65e0\u9700\u91cd\u65b0\u5e94\u7528\u66f4\u6539\u5185\u5bb9\u3002<\/p>\n
kubectl edit statefulset cassandra\r\n<\/code><\/pre>\n\u6267\u884c\u4e0a\u8ff0\u547d\u4ee4\u540e\uff0c\u5c06\u5728\u7f16\u8f91\u5668\u4e2d\u6253\u5f00StatefulSet\u6587\u4ef6\u3002\u5728\u8fd9\u91cc\uff0c\u4f8b\u5982\uff0c\u6211\u4eec\u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\u6765\u5c06\u526f\u672c\u6570\u66f4\u6539\u4e3a10\u3002<\/p>\n
apiVersion: apps\/v1 \r\nkind: StatefulSet\r\nmetadata:\r\n creationTimestamp: 2019-03-29T15:33:17Z\r\n generation: 1\r\n labels:\r\n app: cassandra\r\n name: cassandra\r\n namespace: default\r\n resourceVersion: \"323\"\r\n selfLink: \/apis\/apps\/v1\/namespaces\/default\/statefulsets\/cassandra\r\n uid: 7a209352-0976-15t6-e907-437j940u864\r\nspec:\r\n replicas: 10\r\n<\/code><\/pre>\n\u4fdd\u5b58\u4fee\u6539\u5185\u5bb9\u5e76\u9000\u51fa\u7f16\u8f91\u5668\u3002\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u9a8c\u8bc1\u4fee\u6539\u5185\u5bb9\u3002<\/p>\n
kubectl get statefulset cassandra\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u7684\u4ee3\u7801\u6bb5\u53cd\u6620\u4e86\u524d\u4e00\u4e2a\u547d\u4ee4\u7684\u8f93\u51fa\u3002<\/p>\n
NAME DESIRED CURRENT AGE\r\ncassandra 4 4 3m\r\n<\/code><\/pre>\n\u663e\u7136\uff0c\u66f4\u6539\u5df2\u7ecf\u751f\u6548\u3002<\/p>\n
\u7ed3\u8bba<\/h1>\n
\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u4e8e\u7406\u89e3\u4f7f\u7528Kubernetes StatefulSet\u90e8\u7f72\u9ad8\u53ef\u7528\u6027\u7684Cassandra\u96c6\u7fa4\u662f\u5f88\u6709\u5e2e\u52a9\u7684\u3002\u5b83\u5c55\u793a\u4e86\u5982\u4f55\u6269\u5c55\u548c\u7f29\u51cf\u670d\u52a1\uff0c\u5e76\u4e14\u8bf4\u660e\u4e86\u5982\u4f55\u4eceKubernetes\u5e94\u7528\u7a0b\u5e8f\u8bbf\u95eeStatefulSets\u3002\u6b64\u5916\uff0c\u8fd8\u89e3\u91ca\u4e86\u5982\u4f55\u5728\u963f\u91cc\u4e91\u4e0a\u90e8\u7f72\u5728Kubernetes\u4e0a\u8fd0\u884c\u7684\u9ad8\u53ef\u7528\u6027\u5e94\u7528\u3002<\/p>\n
\u60a8\u6ca1\u6709\u62e5\u6709\u963f\u91cc\u5df4\u5df4\u4e91\u7684\u8d26\u6237\u5417\uff1f\u5982\u679c\u60a8\u6ce8\u518c\u8d26\u6237\uff0c\u60a8\u53ef\u4ee5\u514d\u8d39\u8bd5\u7528\u8d85\u8fc740\u4e2a\u4ef7\u503c\u9ad8\u8fbe1200\u7f8e\u5143\u7684\u4ea7\u54c1\u3002\u8bf7\u67e5\u770b”\u5f00\u59cb\u4f7f\u7528\u963f\u91cc\u5df4\u5df4\u4e91”\u4ee5\u83b7\u53d6\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n
\u672c\u535a\u5ba2\u662f\u6839\u636e\u82f1\u6587\u7248\u8fdb\u884c\u7ffb\u8bd1\u7684\uff0c\u539f\u6587\u8bf7\u70b9\u51fb\u6b64\u94fe\u63a5\u67e5\u770b\u3002\u6211\u4eec\u4f7f\u7528\u4e86\u90e8\u5206\u673a\u5668\u7ffb\u8bd1\u3002\u5982\u679c\u6709\u7ffb\u8bd1\u9519\u8bef\uff0c\u8bf7\u60a8\u6307\u51fa\uff0c\u6211\u5c06\u4e0d\u80dc\u611f\u6fc0\u3002<\/p>\n
\u963f\u91cc\u5df4\u5df4\u4e91\u62e5\u6709\u4e24\u4e2a\u6570\u636e\u4e2d\u5fc3\u5728\u65e5\u672c\uff0c\u5e76\u4e14\u62e5\u6709\u8d85\u8fc760\u4e2a\u53ef\u7528\u533a\uff0c\u662f\u4e9a\u592a\u5730\u533a\u9996\u5c48\u4e00\u6307\uff082019\u5e74Gartner\u62a5\u544a\uff09\u7684\u4e91\u57fa\u7840\u8bbe\u65bd\u670d\u52a1\u63d0\u4f9b\u5546\u3002
\n\u6b32\u4e86\u89e3\u66f4\u591a\u963f\u91cc\u5df4\u5df4\u4e91\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u67e5\u770b\u963f\u91cc\u5df4\u5df4\u4e91\u65e5\u672c\u5b98\u65b9\u7f51\u9875\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u672c\u6587\u5c06\u8be6\u7ec6\u89e3\u91ca\u5728\u963f\u91cc\u5df4\u5df4\u4e91\u4e0a\u4f7f\u7528Kubernetes\u8bbe\u7f6eCassandra\u7684\u65b9\u6cd5\u3002 \u8fd9\u662f\u7531Alibaba Cl […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50121","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
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