{"action":"created","issue":{"url":"https://api.github.com/repos/projectcalico/cni-plugin/issues/373","repository_url":"https://api.github.com/repos/projectcalico/cni-plugin","labels_url":"https://api.github.com/repos/projectcalico/cni-plugin/issues/373/labels{/name}","comments_url":"https://api.github.com/repos/projectcalico/cni-plugin/issues/373/comments","events_url":"https://api.github.com/repos/projectcalico/cni-plugin/issues/373/events","html_url":"https://github.com/projectcalico/cni-plugin/issues/373","id":252873812,"number":373,"title":"pod in one kubernetes node can not be accessed from other nodes with calico network","user":{"login":"haveatry","id":8545862,"avatar_url":"https://avatars0.githubusercontent.com/u/8545862?v=4","gravatar_id":"","url":"https://api.github.com/users/haveatry","html_url":"https://github.com/haveatry","followers_url":"https://api.github.com/users/haveatry/followers","following_url":"https://api.github.com/users/haveatry/following{/other_user}","gists_url":"https://api.github.com/users/haveatry/gists{/gist_id}","starred_url":"https://api.github.com/users/haveatry/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/haveatry/subscriptions","organizations_url":"https://api.github.com/users/haveatry/orgs","repos_url":"https://api.github.com/users/haveatry/repos","events_url":"https://api.github.com/users/haveatry/events{/privacy}","received_events_url":"https://api.github.com/users/haveatry/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2017-08-25T11:33:46Z","updated_at":"2017-08-25T12:23:55Z","closed_at":null,"body":"<!--- Provide a general summary of the issue in the Title above -->\r\n\r\n**The following are all the pods in kube-system of one kubernetes cluster. The cluster is created by kubeadm and uses the calico cni.**\r\n\r\n**The problem is that the pod in the master node(docker18) can not be accessed from all other nodes in the cluster. Is there any suggestion for debugging such issue?**\r\n```\r\n[root@docker18 tmp]# kubectl get pods -n kube-system -o wide\r\nNAME                                       READY     STATUS     RESTARTS   AGE       IP               NODE\r\nbusybox                                    1/1       Running    5          2d        10.244.159.249   docker01\r\ncalico-etcd-d06qh                          1/1       Running    1          22d       172.16.3.122     docker18\r\ncalico-node-573fb                          2/2       Running    3          18d       172.16.3.25      docker01\r\ncalico-node-d7sc4                          2/2       Running    0          2d        172.16.3.122     docker18\r\ncalico-node-kw146                          2/2       Running    0          22d       172.16.3.27      docker03\r\ncalico-node-m9516                          2/2       Running    4          22d       172.16.3.28      docker04\r\ncalico-node-n7p6s                          2/2       Running    1          22d       172.16.3.26      docker02\r\ncalico-node-q5thm                          2/2       Running    3          22d       172.16.3.29      docker05\r\ncalico-policy-controller-441498130-g4jrn   1/1       Running    0          9d        172.16.3.122     docker18\r\ncalicoctl                                  1/1       Running    0          2h        172.16.3.122     docker18\r\ndns-monitor-jp5jf                          1/1       Running    0          9d        10.244.180.36    docker02\r\nheapster-3657700470-26tmx                  1/1       Running    0          9d        10.244.244.107   docker04\r\nkube-apiserver-docker18                    1/1       Running    2          9d        172.16.3.122     docker18\r\nkube-controller-manager-docker18           1/1       Running    43         9d        172.16.3.122     docker18\r\n**kube-dns-2663923968-ll063                  3/3       Running    0          32m       10.244.103.151   docker18**\r\nkube-proxy-1r4px                           1/1       Running    1          22d       172.16.3.29      docker05\r\nkube-proxy-47crj                           1/1       Running    0          22d       172.16.3.26      docker02\r\nkube-proxy-4bsg3                           1/1       Running    2          22d       172.16.3.28      docker04\r\nkube-proxy-63qgj                           1/1       Running    1          22d       172.16.3.122     docker18\r\nkube-proxy-l4rvg                           1/1       Running    0          22d       172.16.3.27      docker03\r\nkube-proxy-q5j4g                           1/1       Running    1          18d       172.16.3.25      docker01\r\nkube-scheduler-docker18                    1/1       Running    35         9d        172.16.3.122     docker18\r\nkubernetes-dashboard-1733555608-0njhp      1/1       Running    0          10d       10.244.180.28    docker02\r\nmonitoring-influxdb-347286373-wj667        1/1       Running    0          9d        10.244.244.95    docker04\r\ntiller-deploy-1046433508-15xxr             1/1       Running    0          7d        10.244.243.131   docker03\r\n```\r\n**I have tried to ping the kube-dns pod ip from other nodes in this cluster, it always fails. But if ping the pod ip from the master node(docker18), it always succeeds.**\r\n```\r\n[root@docker01 ~]# ping 10.244.103.151\r\nPING 10.244.103.151 (10.244.103.151) 56(84) bytes of data.\r\n^C\r\n--- 10.244.103.151 ping statistics ---\r\n10 packets transmitted, 0 received, 100% packet loss, time 8999ms\r\n\r\n\r\n[root@docker18 tmp]# ping 10.244.103.151\r\nPING 10.244.103.151 (10.244.103.151) 56(84) bytes of data.\r\n64 bytes from 10.244.103.151: icmp_seq=1 ttl=64 time=0.152 ms\r\n64 bytes from 10.244.103.151: icmp_seq=2 ttl=64 time=0.144 ms\r\n64 bytes from 10.244.103.151: icmp_seq=3 ttl=64 time=0.088 ms\r\n64 bytes from 10.244.103.151: icmp_seq=4 ttl=64 time=0.413 ms\r\n64 bytes from 10.244.103.151: icmp_seq=5 ttl=64 time=0.934 ms\r\n^C\r\n--- 10.244.103.151 ping statistics ---\r\n5 packets transmitted, 5 received, 0% packet loss, time 3999ms\r\nrtt min/avg/max/mdev = 0.088/0.346/0.934/0.314 ms\r\n```\r\n\r\n\r\n\r\n\r\n**The following is a list of information for such issue.**\r\n```\r\n[root@docker18 tmp]# ip route\r\ndefault via 172.16.3.254 dev bond0 \r\nblackhole 10.244.103.128/26  proto bird \r\n10.244.103.149 dev cali099d76f5a3f  scope link \r\n10.244.103.151 dev cali093fc31a052  scope link \r\n10.244.148.192/26 via 172.16.3.29 dev bond0  proto bird \r\n10.244.159.192/26 via 172.16.3.25 dev bond0  proto bird \r\n10.244.180.0/26 via 172.16.3.26 dev bond0  proto bird \r\n10.244.243.128/26 via 172.16.3.27 dev bond0  proto bird \r\n10.244.244.64/26 via 172.16.3.28 dev bond0  proto bird \r\n10.244.244.128/26 via 172.16.3.123 dev bond0  proto bird \r\n169.254.0.0/16 dev bond0  scope link  metric 1005 \r\n172.16.3.0/24 dev bond0  proto kernel  scope link  src 172.16.3.122 \r\n172.17.0.0/16 dev docker0  proto kernel  scope link  src 172.17.0.1 \r\n\r\n[root@docker18 tmp]# ip a\r\n1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN \r\n    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\r\n    inet 127.0.0.1/8 scope host lo\r\n       valid_lft forever preferred_lft forever\r\n    inet6 ::1/128 scope host \r\n       valid_lft forever preferred_lft forever\r\n2: enp7s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000\r\n    link/ether f8:0f:41:f6:43:eb brd ff:ff:ff:ff:ff:ff\r\n3: enp9s0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP qlen 1000\r\n    link/ether f8:0f:41:f6:43:eb brd ff:ff:ff:ff:ff:ff\r\n4: enp7s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000\r\n    link/ether f8:0f:41:f6:43:ec brd ff:ff:ff:ff:ff:ff\r\n**5: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP \r\n    link/ether f8:0f:41:f6:43:eb brd ff:ff:ff:ff:ff:ff\r\n    inet 172.16.3.122/24 brd 172.16.3.255 scope global bond0\r\n       valid_lft forever preferred_lft forever**\r\n    inet 172.16.3.95/32 scope global bond0\r\n       valid_lft forever preferred_lft forever\r\n    inet6 fe80::fa0f:41ff:fef6:43eb/64 scope link \r\n       valid_lft forever preferred_lft forever\r\n\r\n\r\n[root@docker01 ~]# ip route\r\ndefault via 172.16.3.254 dev bond0 \r\n**10.244.103.128/26 via 172.16.3.122 dev bond0  proto bird** \r\n10.244.148.192/26 via 172.16.3.29 dev bond0  proto bird \r\n10.244.159.192 dev cali2825bc7faf6  scope link \r\nblackhole 10.244.159.192/26  proto bird \r\n10.244.159.200 dev cali65b2c901f46  scope link \r\n10.244.159.203 dev cali052bab6d582  scope link \r\n10.244.159.207 dev calif919fbf48b8  scope link \r\n10.244.159.214 dev cali8fa13434aa4  scope link \r\n10.244.159.219 dev cali1251b304318  scope link \r\n10.244.159.220 dev calif54f5def37e  scope link \r\n10.244.159.222 dev calidf56c09b4a5  scope link \r\n10.244.159.223 dev cali6ee6e6b8150  scope link \r\n10.244.159.227 dev cali2e53450140e  scope link \r\n10.244.159.228 dev cali44be283c198  scope link \r\n10.244.159.229 dev calic40b8ba436b  scope link \r\n10.244.159.237 dev cali5885c03f9c0  scope link \r\n10.244.159.238 dev calib1c667f042f  scope link \r\n10.244.159.240 dev cali3bc19242aef  scope link \r\n10.244.159.249 dev cali6354eae00ad  scope link \r\n10.244.180.0/26 via 172.16.3.26 dev bond0  proto bird \r\n10.244.243.128/26 via 172.16.3.27 dev bond0  proto bird \r\n10.244.244.64/26 via 172.16.3.28 dev bond0  proto bird \r\n10.244.244.128/26 via 172.16.3.123 dev bond0  proto bird \r\n169.254.0.0/16 dev enp8s0f0  scope link  metric 1002 \r\n169.254.0.0/16 dev enp8s0f1  scope link  metric 1003 \r\n169.254.0.0/16 dev bond0  scope link  metric 1008 \r\n172.16.3.0/24 dev bond0  proto kernel  scope link  src 172.16.3.25 \r\n172.17.0.0/16 dev docker0  proto kernel  scope link  src 172.17.0.1 \r\n\r\n\r\n\r\n\r\n[root@docker18 tmp]# kubectl get ds calico-etcd -n kube-system -o yaml\r\napiVersion: extensions/v1beta1\r\nkind: DaemonSet\r\nmetadata:\r\n  creationTimestamp: 2017-08-02T12:10:25Z\r\n  generation: 1\r\n  labels:\r\n    k8s-app: calico-etcd\r\n  name: calico-etcd\r\n  namespace: kube-system\r\n  resourceVersion: \"796\"\r\n  selfLink: /apis/extensions/v1beta1/namespaces/kube-system/daemonsets/calico-etcd\r\n  uid: 91131ead-777b-11e7-b122-f80f41f643eb\r\nspec:\r\n  revisionHistoryLimit: 10\r\n  selector:\r\n    matchLabels:\r\n      k8s-app: calico-etcd\r\n  template:\r\n    metadata:\r\n      annotations:\r\n        scheduler.alpha.kubernetes.io/critical-pod: \"\"\r\n      creationTimestamp: null\r\n      labels:\r\n        k8s-app: calico-etcd\r\n    spec:\r\n      containers:\r\n      - args:\r\n        - /usr/local/bin/etcd --name=calico --data-dir=/var/etcd/calico-data --advertise-client-urls=http://$CALICO_ETCD_IP:6666\r\n          --listen-client-urls=http://0.0.0.0:6666 --listen-peer-urls=http://0.0.0.0:6667\r\n        command:\r\n        - /bin/sh\r\n        - -c\r\n        env:\r\n        - name: CALICO_ETCD_IP\r\n          valueFrom:\r\n            fieldRef:\r\n              apiVersion: v1\r\n              fieldPath: status.podIP\r\n        image: hub.xxxx:5000/etcd:2.2.1\r\n        imagePullPolicy: IfNotPresent\r\n        name: calico-etcd\r\n        resources: {}\r\n        terminationMessagePath: /dev/termination-log\r\n        terminationMessagePolicy: File\r\n        volumeMounts:\r\n        - mountPath: /var/etcd\r\n          name: var-etcd\r\n      dnsPolicy: ClusterFirst\r\n      hostNetwork: true\r\n      nodeSelector:\r\n        node-role.kubernetes.io/master: \"\"\r\n      restartPolicy: Always\r\n      schedulerName: default-scheduler\r\n      securityContext: {}\r\n      terminationGracePeriodSeconds: 30\r\n      tolerations:\r\n      - effect: NoSchedule\r\n        key: node-role.kubernetes.io/master\r\n      - key: CriticalAddonsOnly\r\n        operator: Exists\r\n      volumes:\r\n      - hostPath:\r\n          path: /var/etcd\r\n        name: var-etcd\r\n  templateGeneration: 1\r\n  updateStrategy:\r\n    type: OnDelete\r\nstatus:\r\n  currentNumberScheduled: 1\r\n  desiredNumberScheduled: 1\r\n  numberAvailable: 1\r\n  numberMisscheduled: 0\r\n  numberReady: 1\r\n  observedGeneration: 1\r\n  updatedNumberScheduled: 1\r\n\r\n[root@docker18 tmp]# kubectl get ds calico-node -n kube-system -o yaml\r\napiVersion: extensions/v1beta1\r\nkind: DaemonSet\r\nmetadata:\r\n  creationTimestamp: 2017-08-02T12:10:25Z\r\n  generation: 1\r\n  labels:\r\n    k8s-app: calico-node\r\n  name: calico-node\r\n  namespace: kube-system\r\n  resourceVersion: \"3284548\"\r\n  selfLink: /apis/extensions/v1beta1/namespaces/kube-system/daemonsets/calico-node\r\n  uid: 912b6601-777b-11e7-b122-f80f41f643eb\r\nspec:\r\n  revisionHistoryLimit: 10\r\n  selector:\r\n    matchLabels:\r\n      k8s-app: calico-node\r\n  template:\r\n    metadata:\r\n      annotations:\r\n        scheduler.alpha.kubernetes.io/critical-pod: \"\"\r\n      creationTimestamp: null\r\n      labels:\r\n        k8s-app: calico-node\r\n    spec:\r\n      containers:\r\n      - env:\r\n        - name: ETCD_ENDPOINTS\r\n          valueFrom:\r\n            configMapKeyRef:\r\n              key: etcd_endpoints\r\n              name: calico-config\r\n        - name: CALICO_NETWORKING_BACKEND\r\n          valueFrom:\r\n            configMapKeyRef:\r\n              key: calico_backend\r\n              name: calico-config\r\n        - name: CALICO_DISABLE_FILE_LOGGING\r\n          value: \"true\"\r\n        - name: FELIX_DEFAULTENDPOINTTOHOSTACTION\r\n          value: ACCEPT\r\n        - name: CALICO_IPV4POOL_CIDR\r\n          value: 10.244.0.0/16\r\n        - name: CALICO_IPV4POOL_IPIP\r\n          value: \"off\"\r\n        - name: FELIX_IPV6SUPPORT\r\n          value: \"false\"\r\n        - name: FELIX_LOGSEVERITYSCREEN\r\n          value: info\r\n        - name: IP\r\n        image: hub.xxxx:5000/calico/node:v1.3.0\r\n        imagePullPolicy: IfNotPresent\r\n        name: calico-node\r\n        resources:\r\n          requests:\r\n            cpu: 250m\r\n        securityContext:\r\n          privileged: true\r\n        terminationMessagePath: /dev/termination-log\r\n        terminationMessagePolicy: File\r\n        volumeMounts:\r\n        - mountPath: /lib/modules\r\n          name: lib-modules\r\n          readOnly: true\r\n        - mountPath: /var/run/calico\r\n          name: var-run-calico\r\n      - command:\r\n        - /install-cni.sh\r\n        env:\r\n        - name: ETCD_ENDPOINTS\r\n          valueFrom:\r\n            configMapKeyRef:\r\n              key: etcd_endpoints\r\n              name: calico-config\r\n        - name: CNI_NETWORK_CONFIG\r\n          valueFrom:\r\n            configMapKeyRef:\r\n              key: cni_network_config\r\n              name: calico-config\r\n        image: hub.xxxx:5000/calico/cni:v1.9.1\r\n        imagePullPolicy: IfNotPresent\r\n        name: install-cni\r\n        resources: {}\r\n        terminationMessagePath: /dev/termination-log\r\n        terminationMessagePolicy: File\r\n        volumeMounts:\r\n        - mountPath: /host/opt/cni/bin\r\n          name: cni-bin-dir\r\n        - mountPath: /host/etc/cni/net.d\r\n          name: cni-net-dir\r\n      dnsPolicy: ClusterFirst\r\n      hostNetwork: true\r\n      restartPolicy: Always\r\n      schedulerName: default-scheduler\r\n      securityContext: {}\r\n      serviceAccount: calico-cni-plugin\r\n      serviceAccountName: calico-cni-plugin\r\n      terminationGracePeriodSeconds: 30\r\n      tolerations:\r\n      - effect: NoSchedule\r\n        key: node-role.kubernetes.io/master\r\n      - key: CriticalAddonsOnly\r\n        operator: Exists\r\n      volumes:\r\n      - hostPath:\r\n          path: /lib/modules\r\n        name: lib-modules\r\n      - hostPath:\r\n          path: /var/run/calico\r\n        name: var-run-calico\r\n      - hostPath:\r\n          path: /opt/cni/bin\r\n        name: cni-bin-dir\r\n      - hostPath:\r\n          path: /etc/cni/net.d\r\n        name: cni-net-dir\r\n  templateGeneration: 1\r\n  updateStrategy:\r\n    type: OnDelete\r\n\r\n\r\n[root@docker18 tmp]# kubectl get deployment calico-policy-controller -n kube-system -o yaml\r\napiVersion: extensions/v1beta1\r\nkind: Deployment\r\nmetadata:\r\n  annotations:\r\n    deployment.kubernetes.io/revision: \"1\"\r\n  creationTimestamp: 2017-08-02T12:10:25Z\r\n  generation: 1\r\n  labels:\r\n    k8s-app: calico-policy\r\n  name: calico-policy-controller\r\n  namespace: kube-system\r\n  resourceVersion: \"2070210\"\r\n  selfLink: /apis/extensions/v1beta1/namespaces/kube-system/deployments/calico-policy-controller\r\n  uid: 9134bf06-777b-11e7-b122-f80f41f643eb\r\nspec:\r\n  replicas: 1\r\n  selector:\r\n    matchLabels:\r\n      k8s-app: calico-policy-controller\r\n  strategy:\r\n    type: Recreate\r\n  template:\r\n    metadata:\r\n      annotations:\r\n        scheduler.alpha.kubernetes.io/critical-pod: \"\"\r\n      creationTimestamp: null\r\n      labels:\r\n        k8s-app: calico-policy-controller\r\n      name: calico-policy-controller\r\n      namespace: kube-system\r\n    spec:\r\n      containers:\r\n      - env:\r\n        - name: ETCD_ENDPOINTS\r\n          valueFrom:\r\n            configMapKeyRef:\r\n              key: etcd_endpoints\r\n              name: calico-config\r\n        - name: K8S_API\r\n          value: https://kubernetes.default:443\r\n        - name: CONFIGURE_ETC_HOSTS\r\n          value: \"true\"\r\n        image: hub.xxxx:5000/calico/kube-policy-controller:v0.6.0\r\n        imagePullPolicy: IfNotPresent\r\n        name: calico-policy-controller\r\n        resources: {}\r\n        terminationMessagePath: /dev/termination-log\r\n        terminationMessagePolicy: File\r\n      dnsPolicy: ClusterFirst\r\n      hostNetwork: true\r\n      restartPolicy: Always\r\n      schedulerName: default-scheduler\r\n      securityContext: {}\r\n      serviceAccount: calico-policy-controller\r\n      serviceAccountName: calico-policy-controller\r\n      terminationGracePeriodSeconds: 30\r\n      tolerations:\r\n      - effect: NoSchedule\r\n        key: node-role.kubernetes.io/master\r\n      - key: CriticalAddonsOnly\r\n        operator: Exists\r\n\r\n```\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/projectcalico/cni-plugin/issues/comments/324904088","html_url":"https://github.com/projectcalico/cni-plugin/issues/373#issuecomment-324904088","issue_url":"https://api.github.com/repos/projectcalico/cni-plugin/issues/373","id":324904088,"user":{"login":"haveatry","id":8545862,"avatar_url":"https://avatars0.githubusercontent.com/u/8545862?v=4","gravatar_id":"","url":"https://api.github.com/users/haveatry","html_url":"https://github.com/haveatry","followers_url":"https://api.github.com/users/haveatry/followers","following_url":"https://api.github.com/users/haveatry/following{/other_user}","gists_url":"https://api.github.com/users/haveatry/gists{/gist_id}","starred_url":"https://api.github.com/users/haveatry/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/haveatry/subscriptions","organizations_url":"https://api.github.com/users/haveatry/orgs","repos_url":"https://api.github.com/users/haveatry/repos","events_url":"https://api.github.com/users/haveatry/events{/privacy}","received_events_url":"https://api.github.com/users/haveatry/received_events","type":"User","site_admin":false},"created_at":"2017-08-25T12:23:55Z","updated_at":"2017-08-25T12:23:55Z","body":"@fasaxc Thanks for your response.  Yes, I have ever run the following command in the cluster.\r\nkubectl taint nodes --all node-role.kubernetes.io/master-\r\n\r\nHow to check whether it is running? The following are all the calico related pods, they are all runing state.\r\n[root@docker18 tmp]# kubectl get pods -n kube-system -o wide|grep docker18|grep calico\r\ncalico-etcd-d06qh                          1/1       Running    1          23d       172.16.3.122     docker18\r\ncalico-node-d7sc4                          2/2       Running    0          2d        172.16.3.122     docker18\r\ncalico-policy-controller-441498130-g4jrn   1/1       Running    0          9d        172.16.3.122     docker18\r\ncalicoctl                                  1/1       Running    0          3h        172.16.3.122     docker18\r\n\r\nThe following are all the calico related processes.\r\n[root@docker18 tmp]# ps -fe|grep calico\r\nroot       49613   49592  0 Aug02 ?        00:00:00 /bin/sh -c /usr/local/bin/etcd --name=calico --data-dir=/var/etcd/calico-data --advertise-client-urls=http://$CALICO_ETCD_IP:6666 --listen-client-urls=http://0.0.0.0:6666 --listen-peer-urls=http://0.0.0.0:6667\r\nroot       49634   49613  1 Aug02 ?        08:07:05 /usr/local/bin/etcd --name=calico --data-dir=/var/etcd/calico-data --advertise-client-urls=http://172.16.3.122:6666 --listen-client-urls=http://0.0.0.0:6666 --listen-peer-urls=http://0.0.0.0:6667\r\nroot      807349  807347  0 Aug23 ?        00:04:50 bird6 -R -s /var/run/calico/bird6.ctl -d -c /etc/calico/confd/config/bird6.cfg\r\nroot      807350  807345 14 Aug23 ?        08:35:58 calico-felix\r\nroot      807351  807346  0 Aug23 ?        00:03:53 bird -R -s /var/run/calico/bird.ctl -d -c /etc/calico/confd/config/bird.cfg\r\nroot      807352  807348  0 Aug23 ?        00:13:35 confd -confdir=/etc/calico/confd -interval=5 -watch --log-level=debug -node=http://10.96.232.136:6666 -client-key= -client-cert= -client-ca-keys=\r\n\r\n"}}
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