健康检查与资源监控

在 MatrixOne 分布式集群中，包含了多个组件和对象，为了确保其正常运行并排除故障，我们需要进行一系列的健康检查和资源监控。

本篇文档所介绍到的健康检查与资源监控环境将基于 MatrixOne 分布式集群部署的环境。

检查对象

  • 物理资源层：包括三台虚拟机的 CPU、内存和磁盘资源。有关监控这些资源的成熟方案，可以参考监控方案。在此不做过多介绍。

  • 逻辑资源层：包括 MinIO 的容量使用情况，Kubernetes 的各个节点和 Pod 的 CPU 和内存资源使用情况，以及 MatrixOne 的整体状态和各个组件（如 LogService、CN、DN）的状态。

资源监控

MinIO 容量使用监控

MinIO 自带了一个管理界面，通过该界面我们可以以可视化的方式监控其容量使用情况，包括剩余空间的数量等。有关详细信息，请参考官方文档。

健康检查与资源监控 - 图1

Node/Pod 资源监控

为了确定 MatrixOne 服务是否需要扩缩容，用户往往需要针对 MatrixOne 集群所在 Node 和组件对应 Pod 所使用的资进行监控。

你可以使用 kubectl top 命令完成，详细的命令可以参考对应版本的 Kubernetes 官网文档。

Node 监控

  1. 使用如下命令查看 MatrixOne 集群节点详情：

    1. kubectl get node
    1. [root@master0 ~]# kubectl get node
    2. NAME      STATUS   ROLES                  AGE   VERSION
    3. master0   Ready    control-plane,master   22h   v1.23.17
    4. node0     Ready    <none>                 22h   v1.23.17

  2. 根据上述返回结果，使用以下命令来查看特定节点的资源使用情况。根据之前的部署方案，可以查看到 MatrixOne 集群位于名为 node0 的节点上：

    1. NODE="[待监控节点]" # 根据上述结果，有可能是ip、也可能是主机名、或者别名，例如10.0.0.1、host-10-0-0-1、node01
    2. kubectl top node ${NODE}
    1. [root@master0 ~]# kubectl top node
    2. NAME      CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
    3. master0   179m         9%     4632Mi          66%       
    4. node0     292m         15%    4115Mi          56%  
    5. [root@master0 ~]# kubectl top node node0
    6. NAME    CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
    7. node0   299m         15%    4079Mi          56%

  3. 你还可以查看节点的资源分配和资源上限。请注意，已分配的资源并不等于已使用的资源。

  1. [root@master0 ~]# kubectl describe node node0
  2. Name:               master0
  3. Roles:              control-plane,master
  4. Labels:             beta.kubernetes.io/arch=amd64
  5.                     beta.kubernetes.io/os=linux
  6.                     kubernetes.io/arch=amd64
  7.                     kubernetes.io/hostname=master0
  8.                     kubernetes.io/os=linux
  9.                     node-role.kubernetes.io/control-plane=
  10.                     node-role.kubernetes.io/master=
  11.                     node.kubernetes.io/exclude-from-external-load-balancers=
  12. Annotations:        kubeadm.alpha.kubernetes.io/cri-socket: /var/run/dockershim.sock
  13.                     node.alpha.kubernetes.io/ttl: 0
  14.                     projectcalico.org/IPv4Address: 10.206.134.8/24
  15.                     projectcalico.org/IPv4VXLANTunnelAddr: 10.234.166.0
  16.                     volumes.kubernetes.io/controller-managed-attach-detach: true
  17. CreationTimestamp:  Sun, 07 May 2023 12:28:57 +0800
  18. Taints:             node-role.kubernetes.io/master:NoSchedule
  19. Unschedulable:      false
  20. Lease:
  21.   HolderIdentity:  master0
  22.   AcquireTime:     <unset>
  23.   RenewTime:       Mon, 08 May 2023 10:56:08 +0800
  24. Conditions:
  25.   Type                 Status  LastHeartbeatTime                 LastTransitionTime                Reason                       Message
  26.   ----                 ------  -----------------                 ------------------                ------                       -------
  27.   NetworkUnavailable   False   Sun, 07 May 2023 12:30:08 +0800   Sun, 07 May 2023 12:30:08 +0800   CalicoIsUp                   Calico is running on this node
  28.   MemoryPressure       False   Mon, 08 May 2023 10:56:07 +0800   Sun, 07 May 2023 12:28:55 +0800   KubeletHasSufficientMemory   kubelet has sufficient memory available
  29.   DiskPressure         False   Mon, 08 May 2023 10:56:07 +0800   Sun, 07 May 2023 12:28:55 +0800   KubeletHasNoDiskPressure     kubelet has no disk pressure
  30.   PIDPressure          False   Mon, 08 May 2023 10:56:07 +0800   Sun, 07 May 2023 12:28:55 +0800   KubeletHasSufficientPID      kubelet has sufficient PID available
  31.   Ready                True    Mon, 08 May 2023 10:56:07 +0800   Sun, 07 May 2023 20:47:39 +0800   KubeletReady                 kubelet is posting ready status
  32. Addresses:
  33.   InternalIP:  10.206.134.8
  34.   Hostname:    master0
  35. Capacity:
  36.   cpu:                2
  37.   ephemeral-storage:  51473868Ki
  38.   hugepages-1Gi:      0
  39.   hugepages-2Mi:      0
  40.   memory:             7782436Ki
  41.   pods:               110
  42. Allocatable:
  43.   cpu:                1800m
  44.   ephemeral-storage:  47438316671
  45.   hugepages-1Gi:      0
  46.   hugepages-2Mi:      0
  47.   memory:             7155748Ki
  48.   pods:               110
  49. System Info:
  50.   Machine ID:                 fb436be013b5415799d27abf653585d3
  51.   System UUID:                FB436BE0-13B5-4157-99D2-7ABF653585D3
  52.   Boot ID:                    552bd576-56c8-4d22-9549-d950069a5a77
  53.   Kernel Version:             3.10.0-1160.88.1.el7.x86_64
  54.   OS Image:                   CentOS Linux 7 (Core)
  55.   Operating System:           linux
  56.   Architecture:               amd64
  57.   Container Runtime Version:  docker://20.10.23
  58.   Kubelet Version:            v1.23.17
  59.   Kube-Proxy Version:         v1.23.17
  60. PodCIDR:                      10.234.0.0/23
  61. PodCIDRs:                     10.234.0.0/23
  62. Non-terminated Pods:          (12 in total)
  63.   Namespace                   Name                               CPU Requests  CPU Limits  Memory Requests  Memory Limits  Age
  64.   ---------                   ----                               ------------  ----------  ---------------  -------------  ---
  65.   default                     netchecker-agent-7xnwb             15m (0%)      30m (1%)    64M (0%)         100M (1%)      22h
  66.   default                     netchecker-agent-hostnet-bw85f     15m (0%)      30m (1%)    64M (0%)         100M (1%)      22h
  67.   kruise-system               kruise-daemon-xvl8t                0 (0%)        50m (2%)    0 (0%)           128Mi (1%)     20h
  68.   kube-system                 calico-node-sbzfc                  150m (8%)     300m (16%)  64M (0%)         500M (6%)      22h
  69.   kube-system                 dns-autoscaler-7874cf6bcf-l55q4    20m (1%)      0 (0%)      10Mi (0%)        0 (0%)         22h
  70.   kube-system                 kube-apiserver-master0             250m (13%)    0 (0%)      0 (0%)           0 (0%)         22h
  71.   kube-system                 kube-controller-manager-master0    200m (11%)    0 (0%)      0 (0%)           0 (0%)         22h
  72.   kube-system                 kube-proxy-lfkhk                   0 (0%)        0 (0%)      0 (0%)           0 (0%)         22h
  73.   kube-system                 kube-scheduler-master0             100m (5%)     0 (0%)      0 (0%)           0 (0%)         22h
  74.   kube-system                 metrics-server-7bd47f88c4-knh9b    100m (5%)     100m (5%)   200Mi (2%)       200Mi (2%)     22h
  75.   kube-system                 nodelocaldns-dcffl                 100m (5%)     0 (0%)      70Mi (1%)        170Mi (2%)     14h
  76.   kuboard                     kuboard-v3-master0                 0 (0%)        0 (0%)      0 (0%)           0 (0%)         22h
  77. Allocated resources:
  78.   (Total limits may be over 100 percent, i.e., overcommitted.)
  79.   Resource           Requests        Limits
  80.   --------           --------        ------
  81.   cpu                950m (52%)      510m (28%)
  82.   memory             485601280 (6%)  1222190848 (16%)
  83.   ephemeral-storage  0 (0%)          0 (0%)
  84.   hugepages-1Gi      0 (0%)          0 (0%)
  85.   hugepages-2Mi      0 (0%)          0 (0%)
  86. Events:              <none>
  89. Name:               node0
  90. Roles:              <none>
  91. Labels:             beta.kubernetes.io/arch=amd64
  92.                     beta.kubernetes.io/os=linux
  93.                     kubernetes.io/arch=amd64
  94.                     kubernetes.io/hostname=node0
  95.                     kubernetes.io/os=linux
  96. Annotations:        kubeadm.alpha.kubernetes.io/cri-socket: /var/run/dockershim.sock
  97.                     node.alpha.kubernetes.io/ttl: 0
  98.                     projectcalico.org/IPv4Address: 10.206.134.14/24
  99.                     projectcalico.org/IPv4VXLANTunnelAddr: 10.234.60.0
  100.                     volumes.kubernetes.io/controller-managed-attach-detach: true
  101. CreationTimestamp:  Sun, 07 May 2023 12:29:46 +0800
  102. Taints:             <none>
  103. Unschedulable:      false
  104. Lease:
  105.   HolderIdentity:  node0
  106.   AcquireTime:     <unset>
  107.   RenewTime:       Mon, 08 May 2023 10:56:06 +0800
  108. Conditions:
  109.   Type                 Status  LastHeartbeatTime                 LastTransitionTime                Reason                       Message
  110.   ----                 ------  -----------------                 ------------------                ------                       -------
  111.   NetworkUnavailable   False   Sun, 07 May 2023 12:30:08 +0800   Sun, 07 May 2023 12:30:08 +0800   CalicoIsUp                   Calico is running on this node
  112.   MemoryPressure       False   Mon, 08 May 2023 10:56:12 +0800   Sun, 07 May 2023 12:29:46 +0800   KubeletHasSufficientMemory   kubelet has sufficient memory available
  113.   DiskPressure         False   Mon, 08 May 2023 10:56:12 +0800   Sun, 07 May 2023 12:29:46 +0800   KubeletHasNoDiskPressure     kubelet has no disk pressure
  114.   PIDPressure          False   Mon, 08 May 2023 10:56:12 +0800   Sun, 07 May 2023 12:29:46 +0800   KubeletHasSufficientPID      kubelet has sufficient PID available
  115.   Ready                True    Mon, 08 May 2023 10:56:12 +0800   Sun, 07 May 2023 20:48:36 +0800   KubeletReady                 kubelet is posting ready status
  116. Addresses:
  117.   InternalIP:  10.206.134.14
  118.   Hostname:    node0
  119. Capacity:
  120.   cpu:                2
  121.   ephemeral-storage:  51473868Ki
  122.   hugepages-1Gi:      0
  123.   hugepages-2Mi:      0
  124.   memory:             7782444Ki
  125.   pods:               110
  126. Allocatable:
  127.   cpu:                1900m
  128.   ephemeral-storage:  47438316671
  129.   hugepages-1Gi:      0
  130.   hugepages-2Mi:      0
  131.   memory:             7417900Ki
  132.   pods:               110
  133. System Info:
  134.   Machine ID:                 a6600151884b44fb9f0bc9af490e44b7
  135.   System UUID:                A6600151-884B-44FB-9F0B-C9AF490E44B7
  136.   Boot ID:                    b7f3357f-44e6-425e-8c90-6ada14e92703
  137.   Kernel Version:             3.10.0-1160.88.1.el7.x86_64
  138.   OS Image:                   CentOS Linux 7 (Core)
  139.   Operating System:           linux
  140.   Architecture:               amd64
  141.   Container Runtime Version:  docker://20.10.23
  142.   Kubelet Version:            v1.23.17
  143.   Kube-Proxy Version:         v1.23.17
  144. PodCIDR:                      10.234.2.0/23
  145. PodCIDRs:                     10.234.2.0/23
  146. Non-terminated Pods:          (20 in total)
  147.   Namespace                   Name                                                         CPU Requests  CPU Limits  Memory Requests  Memory Limits  Age
  148.   ---------                   ----                                                         ------------  ----------  ---------------  -------------  ---
  149.   default                     netchecker-agent-6v8rl                                       15m (0%)      30m (1%)    64M (0%)         100M (1%)      22h
  150.   default                     netchecker-agent-hostnet-fb2jn                               15m (0%)      30m (1%)    64M (0%)         100M (1%)      22h
  151.   default                     netchecker-server-645d759b79-v4bqm                           150m (7%)     300m (15%)  192M (2%)        512M (6%)      22h
  152.   kruise-system               kruise-controller-manager-74847d59cf-295rk                   100m (5%)     200m (10%)  256Mi (3%)       512Mi (7%)     20h
  153.   kruise-system               kruise-controller-manager-74847d59cf-854sq                   100m (5%)     200m (10%)  256Mi (3%)       512Mi (7%)     20h
  154.   kruise-system               kruise-daemon-rz9pj                                          0 (0%)        50m (2%)    0 (0%)           128Mi (1%)     20h
  155.   kube-system                 calico-kube-controllers-74df5cd99c-n9qsn                     30m (1%)      1 (52%)     64M (0%)         256M (3%)      22h
  156.   kube-system                 calico-node-brqrk                                            150m (7%)     300m (15%)  64M (0%)         500M (6%)      22h
  157.   kube-system                 coredns-76b4fb4578-9cqc7                                     100m (5%)     0 (0%)      70Mi (0%)        170Mi (2%)     14h
  158.   kube-system                 kube-proxy-rpxb5                                             0 (0%)        0 (0%)      0 (0%)           0 (0%)         22h
  159.   kube-system                 nginx-proxy-node0                                            25m (1%)      0 (0%)      32M (0%)         0 (0%)         22h
  160.   kube-system                 nodelocaldns-qkxhv                                           100m (5%)     0 (0%)      70Mi (0%)        170Mi (2%)     14h
  161.   local-path-storage          local-path-storage-local-path-provisioner-d5bb7f8c9-qfp8h    0 (0%)        0 (0%)      0 (0%)           0 (0%)         21h
  162.   mo-hn                       matrixone-operator-f8496ff5c-fp6zm                           0 (0%)        0 (0%)      0 (0%)           0 (0%)         20h
  163.   mo-hn                       mo-dn-0                                                      0 (0%)        0 (0%)      0 (0%)           0 (0%)         13h
  164.   mo-hn                       mo-log-0                                                     0 (0%)        0 (0%)      0 (0%)           0 (0%)         13h
  165.   mo-hn                       mo-log-1                                                     0 (0%)        0 (0%)      0 (0%)           0 (0%)         13h
  166.   mo-hn                       mo-log-2                                                     0 (0%)        0 (0%)      0 (0%)           0 (0%)         13h
  167.   mo-hn                       mo-tp-cn-0                                                   0 (0%)        0 (0%)      0 (0%)           0 (0%)         13h
  168.   mostorage                   minio-674ccf54f7-tdglh                                       0 (0%)        0 (0%)      512Mi (7%)       0 (0%)         20h
  169. Allocated resources:
  170.   (Total limits may be over 100 percent, i.e., overcommitted.)
  171.   Resource           Requests          Limits
  172.   --------           --------          ------
  173.   cpu                785m (41%)        2110m (111%)
  174.   memory             1700542464 (22%)  3032475392 (39%)
  175.   ephemeral-storage  0 (0%)            0 (0%)
  176.   hugepages-1Gi      0 (0%)            0 (0%)
  177.   hugepages-2Mi      0 (0%)            0 (0%)
  178. Events:              <none>

Pod 监控

  1. 通过以下命令可以查看 MatrixOne 集群的 Pod：

    1. NS="mo-hn"
    2. kubectl get pod -n${NS}

  2. 根据上述返回结果，使用以下命令来查看特定 Pod 的资源使用情况：

    1. POD="[待监控pod名称]" # 根据上述结果，例如：dn为mo-dn-0，cn为mo-tp-cn-0、mo-tp-cn-1、...，logservice为mo-log-0、mo-log-1、...
    2. kubectl top pod ${POD} -n${NS}

    该命令将显示指定 Pod 的 CPU 和内存使用情况，类似于以下输出：

    1. [root@master0 ~]# kubectl top pod mo-tp-cn-0 -nmo-hn
    2. NAME         CPU(cores)   MEMORY(bytes)   
    3. mo-tp-cn-0   20m          214Mi
    4. [root@master0 ~]# kubectl top pod mo-dn-0 -nmo-hn     
    5. NAME      CPU(cores)   MEMORY(bytes)   
    6. mo-dn-0   36m          161Mi

  3. 此外，你还可以查看特定 Pod 的资源声明情况，以便与实际使用的资源进行对比。

  1. kubectl describe pod ${POD_NAME} -n${NS}
  2. kubectl get pod ${POD_NAME} -n${NS} -oyaml
  1. [root@master0 ~]# kubectl describe pod mo-tp-cn-0 -nmo-hn
  2. Name:         mo-tp-cn-0
  3. Namespace:    mo-hn
  4. Priority:     0
  5. Node:         node0/10.206.134.14
  6. Start Time:   Sun, 07 May 2023 21:01:50 +0800
  7. Labels:       controller-revision-hash=mo-tp-cn-8666cdfb56
  8.               lifecycle.apps.kruise.io/state=Normal
  9.               matrixorigin.io/cluster=mo
  10.               matrixorigin.io/component=CNSet
  11.               matrixorigin.io/instance=mo-tp
  12.               matrixorigin.io/namespace=mo-hn
  13.               statefulset.kubernetes.io/pod-name=mo-tp-cn-0
  14. Annotations:  apps.kruise.io/runtime-containers-meta:
  15.                 {"containers":[{"name":"main","containerID":"docker://679d672a330d7318f97a90835dacefcdd03e8a08062b8844d438f8cdd6bcdc8f","restartCount":0,"...
  16.               cni.projectcalico.org/containerID: 80b286789a2d6fa9e615c3edee79b57edb452eaeafddb9b7b82ec5fb2e339409
  17.               cni.projectcalico.org/podIP: 10.234.60.53/32
  18.               cni.projectcalico.org/podIPs: 10.234.60.53/32
  19.               kruise.io/related-pub: mo
  20.               lifecycle.apps.kruise.io/timestamp: 2023-05-07T13:01:50Z
  21.               matrixone.cloud/cn-label: null
  22.               matrixone.cloud/dns-based-identity: False
  23. Status:       Running
  24. IP:           10.234.60.53
  25. IPs:
  26.   IP:           10.234.60.53
  27. Controlled By:  StatefulSet/mo-tp-cn
  28. Containers:
  29.   main:
  30.     Container ID:  docker://679d672a330d7318f97a90835dacefcdd03e8a08062b8844d438f8cdd6bcdc8f
  31.     Image:         matrixorigin/matrixone:nightly-144f3be4
  32.     Image ID:      docker-pullable://matrixorigin/matrixone@sha256:288fe3d626c6aa564684099e4686a9d4b28e16fdd16512bd968a67bb41d5aaa3
  33.     Port:          <none>
  34.     Host Port:     <none>
  35.     Command:
  36.       /bin/sh
  37.       /etc/matrixone/config/start.sh
  38.     Args:
  39.       -debug-http=:6060
  40.     State:          Running
  41.       Started:      Sun, 07 May 2023 21:01:54 +0800
  42.     Ready:          True
  43.     Restart Count:  0
  44.     Environment:
  45.       POD_NAME:               mo-tp-cn-0 (v1:metadata.name)
  46.       NAMESPACE:              mo-hn (v1:metadata.namespace)
  47.       HEADLESS_SERVICE_NAME:  mo-tp-cn-headless
  48.       AWS_ACCESS_KEY_ID:      <set to the key 'AWS_ACCESS_KEY_ID' in secret 'minio'>      Optional: false
  49.       AWS_SECRET_ACCESS_KEY:  <set to the key 'AWS_SECRET_ACCESS_KEY' in secret 'minio'>  Optional: false
  50.       AWS_REGION:             us-west-2
  51.     Mounts:
  52.       /etc/matrixone/config from config (ro)
  53.       /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-ngpcs (ro)
  54. Readiness Gates:
  55.   Type                 Status
  56.   InPlaceUpdateReady   True
  57.   KruisePodReady       True
  58. Conditions:
  59.   Type                 Status
  60.   KruisePodReady       True
  61.   InPlaceUpdateReady   True
  62.   Initialized          True
  63.   Ready                True
  64.   ContainersReady      True
  65.   PodScheduled         True
  66. Volumes:
  67.   config:
  68.     Type:      ConfigMap (a volume populated by a ConfigMap)
  69.     Name:      mo-tp-cn-config-5abf454
  70.     Optional:  false
  71.   kube-api-access-ngpcs:
  72.     Type:                    Projected (a volume that contains injected data from multiple sources)
  73.     TokenExpirationSeconds:  3607
  74.     ConfigMapName:           kube-root-ca.crt
  75.     ConfigMapOptional:       <nil>
  76.     DownwardAPI:             true
  77. QoS Class:                   BestEffort
  78. Node-Selectors:              <none>
  79. Tolerations:                 node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
  80.                              node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
  81. Events:                      <none>
  82. [root@master0 ~]# kubectl get pod  mo-tp-cn-0 -nmo-hn -oyaml
  83. apiVersion: v1
  84. kind: Pod
  85. metadata:
  86.   annotations:
  87.     apps.kruise.io/runtime-containers-meta: '{"containers":[{"name":"main","containerID":"docker://679d672a330d7318f97a90835dacefcdd03e8a08062b8844d438f8cdd6bcdc8f","restartCount":0,"hashes":{"plainHash":1670287891}}]}'
  88.     cni.projectcalico.org/containerID: 80b286789a2d6fa9e615c3edee79b57edb452eaeafddb9b7b82ec5fb2e339409
  89.     cni.projectcalico.org/podIP: 10.234.60.53/32
  90.     cni.projectcalico.org/podIPs: 10.234.60.53/32
  91.     kruise.io/related-pub: mo
  92.     lifecycle.apps.kruise.io/timestamp: "2023-05-07T13:01:50Z"
  93.     matrixone.cloud/cn-label: "null"
  94.     matrixone.cloud/dns-based-identity: "False"
  95.   creationTimestamp: "2023-05-07T13:01:50Z"
  96.   generateName: mo-tp-cn-
  97.   labels:
  98.     controller-revision-hash: mo-tp-cn-8666cdfb56
  99.     lifecycle.apps.kruise.io/state: Normal
  100.     matrixorigin.io/cluster: mo
  101.     matrixorigin.io/component: CNSet
  102.     matrixorigin.io/instance: mo-tp
  103.     matrixorigin.io/namespace: mo-hn
  104.     statefulset.kubernetes.io/pod-name: mo-tp-cn-0
  105.   name: mo-tp-cn-0
  106.   namespace: mo-hn
  107.   ownerReferences:
  108.   - apiVersion: apps.kruise.io/v1beta1
  109.     blockOwnerDeletion: true
  110.     controller: true
  111.     kind: StatefulSet
  112.     name: mo-tp-cn
  113.     uid: 891e0453-89a5-45d5-ad12-16ef048c804f
  114.   resourceVersion: "72625"
  115.   uid: 1e3e2df3-f1c2-4444-8694-8d23e7125d35
  116. spec:
  117.   containers:
  118.   - args:
  119.     - -debug-http=:6060
  120.     command:
  121.     - /bin/sh
  122.     - /etc/matrixone/config/start.sh
  123.     env:
  124.     - name: POD_NAME
  125.       valueFrom:
  126.         fieldRef:
  127.           apiVersion: v1
  128.           fieldPath: metadata.name
  129.     - name: NAMESPACE
  130.       valueFrom:
  131.         fieldRef:
  132.           apiVersion: v1
  133.           fieldPath: metadata.namespace
  134.     - name: HEADLESS_SERVICE_NAME
  135.       value: mo-tp-cn-headless
  136.     - name: AWS_ACCESS_KEY_ID
  137.       valueFrom:
  138.         secretKeyRef:
  139.           key: AWS_ACCESS_KEY_ID
  140.           name: minio
  141.     - name: AWS_SECRET_ACCESS_KEY
  142.       valueFrom:
  143.         secretKeyRef:
  144.           key: AWS_SECRET_ACCESS_KEY
  145.           name: minio
  146.     - name: AWS_REGION
  147.       value: us-west-2
  148.     image: matrixorigin/matrixone:nightly-144f3be4
  149.     imagePullPolicy: Always
  150.     name: main
  151.     resources: {}
  152.     terminationMessagePath: /dev/termination-log
  153.     terminationMessagePolicy: File
  154.     volumeMounts:
  155.     - mountPath: /etc/matrixone/config
  156.       name: config
  157.       readOnly: true
  158.     - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
  159.       name: kube-api-access-ngpcs
  160.       readOnly: true
  161.   dnsPolicy: ClusterFirst
  162.   enableServiceLinks: true
  163.   hostname: mo-tp-cn-0
  164.   nodeName: node0
  165.   preemptionPolicy: PreemptLowerPriority
  166.   priority: 0
  167.   readinessGates:
  168.   - conditionType: InPlaceUpdateReady
  169.   - conditionType: KruisePodReady
  170.   restartPolicy: Always
  171.   schedulerName: default-scheduler
  172.   securityContext: {}
  173.   serviceAccount: default
  174.   serviceAccountName: default
  175.   subdomain: mo-tp-cn-headless
  176.   terminationGracePeriodSeconds: 30
  177.   tolerations:
  178.   - effect: NoExecute
  179.     key: node.kubernetes.io/not-ready
  180.     operator: Exists
  181.     tolerationSeconds: 300
  182.   - effect: NoExecute
  183.     key: node.kubernetes.io/unreachable
  184.     operator: Exists
  185.     tolerationSeconds: 300
  186.   volumes:
  187.   - configMap:
  188.       defaultMode: 420
  189.       name: mo-tp-cn-config-5abf454
  190.     name: config
  191.   - name: kube-api-access-ngpcs
  192.     projected:
  193.       defaultMode: 420
  194.       sources:
  195.       - serviceAccountToken:
  196.           expirationSeconds: 3607
  197.           path: token
  198.       - configMap:
  199.           items:
  200.           - key: ca.crt
  201.             path: ca.crt
  202.           name: kube-root-ca.crt
  203.       - downwardAPI:
  204.           items:
  205.           - fieldRef:
  206.               apiVersion: v1
  207.               fieldPath: metadata.namespace
  208.             path: namespace
  209. status:
  210.   conditions:
  211.   - lastProbeTime: null
  212.     lastTransitionTime: "2023-05-07T13:01:50Z"
  213.     status: "True"
  214.     type: KruisePodReady
  215.   - lastProbeTime: null
  216.     lastTransitionTime: "2023-05-07T13:01:50Z"
  217.     status: "True"
  218.     type: InPlaceUpdateReady
  219.   - lastProbeTime: null
  220.     lastTransitionTime: "2023-05-07T13:01:50Z"
  221.     status: "True"
  222.     type: Initialized
  223.   - lastProbeTime: null
  224.     lastTransitionTime: "2023-05-07T13:01:54Z"
  225.     status: "True"
  226.     type: Ready
  227.   - lastProbeTime: null
  228.     lastTransitionTime: "2023-05-07T13:01:54Z"
  229.     status: "True"
  230.     type: ContainersReady
  231.   - lastProbeTime: null
  232.     lastTransitionTime: "2023-05-07T13:01:50Z"
  233.     status: "True"
  234.     type: PodScheduled
  235.   containerStatuses:
  236.   - containerID: docker://679d672a330d7318f97a90835dacefcdd03e8a08062b8844d438f8cdd6bcdc8f
  237.     image: matrixorigin/matrixone:nightly-144f3be4
  238.     imageID: docker-pullable://matrixorigin/matrixone@sha256:288fe3d626c6aa564684099e4686a9d4b28e16fdd16512bd968a67bb41d5aaa3
  239.     lastState: {}
  240.     name: main
  241.     ready: true
  242.     restartCount: 0
  243.     started: true
  244.     state:
  245.       running:
  246.         startedAt: "2023-05-07T13:01:54Z"
  247.   hostIP: 10.206.134.14
  248.   phase: Running
  249.   podIP: 10.234.60.53
  250.   podIPs:
  251.   - ip: 10.234.60.53
  252.   qosClass: BestEffort
  253.   startTime: "2023-05-07T13:01:50Z"

MatrixOne 监控

查看集群状态

在 Operator 部署过程中，我们定义了 matrixOnecluster 作为整个集群的自定义资源名称。通过检查 MatrixOneCluster，我们可以判断集群是否正常运行。你可以使用以下命令进行检查：

  1. MO_NAME="mo"
  2. NS="mo-hn"
  3. kubectl get matrixonecluster -n${NS} ${MO_NAME}

如果状态为 “Ready”，则表示集群正常。如果状态为 “NotReady”，则需要进一步排查问题。

  1. [root@master0 ~]# MO_NAME="mo"
  2. [root@master0 ~]# NS="mo-hn"
  3. [root@master0 ~]# kubectl get matrixonecluster -n${NS} ${MO_NAME}
  4. NAME   LOG   DN    TP    AP    VERSION            PHASE   AGE
  5. mo     3     1     1           nightly-144f3be4   Ready   13h

要查看 MatrixOne 集群状态的详细信息，可以运行以下命令：

  1. kubectl describe matrixonecluster -n${NS} ${MO_NAME}
  1. [root@master0 ~]# kubectl describe matrixonecluster -n${NS} ${MO_NAME}
  2. Name:         mo
  3. Namespace:    mo-hn
  4. Labels:       <none>
  5. Annotations:  <none>
  6. API Version:  core.matrixorigin.io/v1alpha1
  7. Kind:         MatrixOneCluster
  8. Metadata:
  9.   Creation Timestamp:  2023-05-07T12:54:17Z
  10.   Finalizers:
  11.     matrixorigin.io/matrixonecluster
  12.   Generation:  2
  13.   Managed Fields:
  14.     API Version:  core.matrixorigin.io/v1alpha1
  15.     Fields Type:  FieldsV1
  16.     fieldsV1:
  17.       f:metadata:
  18.         f:annotations:
  19.           .:
  20.           f:kubectl.kubernetes.io/last-applied-configuration:
  21.       f:spec:
  22.         .:
  23.         f:dn:
  24.           .:
  25.           f:config:
  26.           f:replicas:
  27.         f:imagePullPolicy:
  28.         f:imageRepository:
  29.         f:logService:
  30.           .:
  31.           f:config:
  32.           f:pvcRetentionPolicy:
  33.           f:replicas:
  34.           f:sharedStorage:
  35.             .:
  36.             f:s3:
  37.               .:
  38.               f:endpoint:
  39.               f:secretRef:
  40.               f:type:
  41.           f:volume:
  42.             .:
  43.             f:size:
  44.         f:tp:
  45.           .:
  46.           f:config:
  47.           f:nodePort:
  48.           f:replicas:
  49.           f:serviceType:
  50.         f:version:
  51.     Manager:      kubectl-client-side-apply
  52.     Operation:    Update
  53.     Time:         2023-05-07T12:54:17Z
  54.     API Version:  core.matrixorigin.io/v1alpha1
  55.     Fields Type:  FieldsV1
  56.     fieldsV1:
  57.       f:metadata:
  58.         f:finalizers:
  59.           .:
  60.           v:"matrixorigin.io/matrixonecluster":
  61.     Manager:      manager
  62.     Operation:    Update
  63.     Time:         2023-05-07T12:54:17Z
  64.     API Version:  core.matrixorigin.io/v1alpha1
  65.     Fields Type:  FieldsV1
  66.     fieldsV1:
  67.       f:spec:
  68.         f:logService:
  69.           f:sharedStorage:
  70.             f:s3:
  71.               f:path:
  72.     Manager:      kubectl-edit
  73.     Operation:    Update
  74.     Time:         2023-05-07T13:00:53Z
  75.     API Version:  core.matrixorigin.io/v1alpha1
  76.     Fields Type:  FieldsV1
  77.     fieldsV1:
  78.       f:status:
  79.         .:
  80.         f:cnGroups:
  81.           .:
  82.           f:desiredGroups:
  83.           f:readyGroups:
  84.           f:syncedGroups:
  85.         f:conditions:
  86.         f:credentialRef:
  87.         f:dn:
  88.           .:
  89.           f:availableStores:
  90.           f:conditions:
  91.         f:logService:
  92.           .:
  93.           f:availableStores:
  94.           f:conditions:
  95.           f:discovery:
  96.             .:
  97.             f:address:
  98.             f:port:
  99.         f:phase:
  100.     Manager:         manager
  101.     Operation:       Update
  102.     Subresource:     status
  103.     Time:            2023-05-07T13:02:12Z
  104.   Resource Version:  72671
  105.   UID:               be2355c0-0c69-4f0f-95bb-9310224200b6
  106. Spec:
  107.   Dn:
  108.     Config:  
  109. [dn]
  111. [dn.Ckp]
  112. flush-interval = "60s"
  113. global-interval = "100000s"
  114. incremental-interval = "60s"
  115. min-count = 100
  116. scan-interval = "5s"
  118. [dn.Txn]
  120. [dn.Txn.Storage]
  121. backend = "TAE"
  122. log-backend = "logservice"
  124. [log]
  125. format = "json"
  126. level = "error"
  127. max-size = 512
  129.     Replicas:  1
  130.     Resources:
  131.     Service Args:
  132.       -debug-http=:6060
  133.     Shared Storage Cache:
  134.       Memory Cache Size:  0
  135.   Image Pull Policy:      Always
  136.   Image Repository:       matrixorigin/matrixone
  137.   Log Service:
  138.     Config:  
  139. [log]
  140. format = "json"
  141. level = "error"
  142. max-size = 512
  144.     Initial Config:
  145.       Dn Shards:           1
  146.       Log Shard Replicas:  3
  147.       Log Shards:          1
  148.     Pvc Retention Policy:  Retain
  149.     Replicas:              3
  150.     Resources:
  151.     Service Args:
  152.       -debug-http=:6060
  153.     Shared Storage:
  154.       s3:
  155.         Endpoint:           http://minio.mostorage:9000
  156.         Path:               minio-mo
  157.         s3RetentionPolicy:  Retain
  158.         Secret Ref:
  159.           Name:             minio
  160.         Type:               minio
  161.     Store Failure Timeout:  10m0s
  162.     Volume:
  163.       Size:  1Gi
  164.   Tp:
  165.     Config:  
  166. [cn]
  168. [cn.Engine]
  169. type = "distributed-tae"
  171. [log]
  172. format = "json"
  173. level = "debug"
  174. max-size = 512
  176.     Node Port:  31474
  177.     Replicas:   1
  178.     Resources:
  179.     Service Args:
  180.       -debug-http=:6060
  181.     Service Type:  NodePort
  182.     Shared Storage Cache:
  183.       Memory Cache Size:  0
  184.   Version:                nightly-144f3be4
  185. Status:
  186.   Cn Groups:
  187.     Desired Groups:  1
  188.     Ready Groups:    1
  189.     Synced Groups:   1
  190.   Conditions:
  191.     Last Transition Time:  2023-05-07T13:02:14Z
  192.     Message:               the object is synced
  193.     Reason:                empty
  194.     Status:                True
  195.     Type:                  Synced
  196.     Last Transition Time:  2023-05-07T13:02:14Z
  197.     Message:               
  198.     Reason:                AllSetsReady
  199.     Status:                True
  200.     Type:                  Ready
  201.   Credential Ref:
  202.     Name:  mo-credential
  203.   Dn:
  204.     Available Stores:
  205.       Last Transition:  2023-05-07T13:01:48Z
  206.       Phase:            Up
  207.       Pod Name:         mo-dn-0
  208.     Conditions:
  209.       Last Transition Time:  2023-05-07T13:01:48Z
  210.       Message:               the object is synced
  211.       Reason:                empty
  212.       Status:                True
  213.       Type:                  Synced
  214.       Last Transition Time:  2023-05-07T13:01:48Z
  215.       Message:               
  216.       Reason:                empty
  217.       Status:                True
  218.       Type:                  Ready
  219.   Log Service:
  220.     Available Stores:
  221.       Last Transition:  2023-05-07T13:01:25Z
  222.       Phase:            Up
  223.       Pod Name:         mo-log-0
  224.       Last Transition:  2023-05-07T13:01:25Z
  225.       Phase:            Up
  226.       Pod Name:         mo-log-1
  227.       Last Transition:  2023-05-07T13:01:25Z
  228.       Phase:            Up
  229.       Pod Name:         mo-log-2
  230.     Conditions:
  231.       Last Transition Time:  2023-05-07T13:01:25Z
  232.       Message:               the object is synced
  233.       Reason:                empty
  234.       Status:                True
  235.       Type:                  Synced
  236.       Last Transition Time:  2023-05-07T13:01:25Z
  237.       Message:               
  238.       Reason:                empty
  239.       Status:                True
  240.       Type:                  Ready
  241.     Discovery:
  242.       Address:  mo-log-discovery.mo-hn.svc
  243.       Port:     32001
  244.   Phase:        Ready
  245. Events:
  246.   Type    Reason            Age                From              Message
  247.   ----    ------            ----               ----              -------
  248.   Normal  ReconcileSuccess  29m (x2 over 13h)  matrixonecluster  object is synced

查看组件状态

当前 MatrixOne 集群包含以下组件：DN、CN、Log Service，它们分别对应着自定义资源类型 DNSet、CNSet、LogSet，这些对象由 MatrixOneCluster 控制器生成。

要检查各组件是否正常，以 DN 为例，可以运行以下命令：

  1. SET_TYPE="dnset"
  2. NS="mo-hn"
  3. kubectl get ${SET_TYPE} -n${NS}

这将显示 DN 组件的状态信息，信息如下：

  1. [root@master0 ~]# SET_TYPE="dnset"
  2. [root@master0 ~]# NS="mo-hn"
  3. [root@master0 ~]# kubectl get ${SET_TYPE} -n${NS}
  4. NAME   IMAGE                                     REPLICAS   AGE
  5. mo     matrixorigin/matrixone:nightly-144f3be4   1          13h
  6. [root@master0 ~]# SET_TYPE="cnset"
  7. [root@master0 ~]# kubectl get ${SET_TYPE} -n${NS}
  8. NAME    IMAGE                                     REPLICAS   AGE
  9. mo-tp   matrixorigin/matrixone:nightly-144f3be4   1          13h
  10. [root@master0 ~]# SET_TYPE="logset"                 
  11. [root@master0 ~]# kubectl get ${SET_TYPE} -n${NS}
  12. NAME   IMAGE                                     REPLICAS   AGE
  13. mo     matrixorigin/matrixone:nightly-144f3be4   3          13h

查看 Pod 状态

你可以直接检查 MO 集群中生成的原生 Kubernetes 对象，以确认集群的健康状态。通常，通过查询 Pod 即可完成。

  1. NS="mo-hn"
  2. kubectl get pod -n${NS}

这将显示 Pod 的状态信息。

  1. [root@master0 ~]# NS="mo-hn"
  2. [root@master0 ~]# kubectl get pod -n${NS}
  3. NAME                                 READY   STATUS    RESTARTS   AGE
  4. matrixone-operator-f8496ff5c-fp6zm   1/1     Running   0          19h
  5. mo-dn-0                              1/1     Running   0          13h
  6. mo-log-0                             1/1     Running   0          13h
  7. mo-log-1                             1/1     Running   0          13h
  8. mo-log-2                             1/1     Running   0          13h
  9. mo-tp-cn-0                           1/1     Running   0          13h

通常情况下，Running 状态表示 Pod 正常运行。但也有一些特殊情况，可能 Pod 状态为 Running，但 MatrixOne 集群实际上不正常。例如，无法通过 MySQL 客户端连接 MatrixOne 集群。在这种情况下，您可以进一步查看 Pod 的日志，以检查是否有异常信息输出。

  1. NS="mo-hn"
  2. POD_NAME="[上述返回pod的名称]" # 例如mo-tp-cn-0
  3. kubectl logs ${POD_NAME} -n${NS}

如果 Pod 状态为非 Running 状态，例如 Pending，您可以通过查看 Pod 的事件（Events）来确认异常原因。以前面的例子为例，由于集群资源无法满足 mo-tp-cn-3 的请求，该 Pod 无法调度，并处于 Pending 状态。在这种情况下，您可以通过扩容节点资源来解决。

  1. kubectl describe pod ${POD_NAME} -n${NS}

健康检查与资源监控 - 图2