监控集群

用户可以使用 listReplicaGroups() 监控集群状态。

  1. 连接到协调节点：

    1. $ /opt/sequoiadb/bin/sdb
    2. > var db = new Sdb( "localhost", 11810 )

  2. 集群状态：

    1. > db.listReplicaGroups()

    输出结果如下：

    1. {
    2.  "Group": [
    3.    {
    4.      "dbpath": "/opt/sequoiadb/database/cata/11800",
    5.      "HostName": "hostname1",
    6.      "Service": [
    7.        ...
    8.      ],
    9.      "NodeID": 1
    10.    },
    11.    {
    12.      "HostName": "hostname2",
    13.      "dbpath": "/opt/sequoiadb/database/cata/11800",
    14.      "Service": [
    15.        ...
    16.      ],
    17.      "NodeID": 2
    18.    },
    19.    {
    20.      "HostName": "hostname3",
    21.      "dbpath": "/opt/sequoiadb/database/cata/11800",
    22.      "Service": [
    23.        ...
    24.      ],
    25.      "NodeID": 3
    26.    }
    27.  ],
    28.  "GroupID": 1,
    29.  "GroupName": "SYSCatalogGroup",
    30.  "PrimaryNode": 1,
    31.  "Role": 2,
    32.  "Status": 1,
    33.  "Version": 3,
    34.  "_id": {
    35.    "$oid": "558b9264de349a1b87451a1d"
    36.  }
    37. }
    38. {
    39.  "Group": [
    40.    {
    41.      "HostName": "hostname1",
    42.      "dbpath": "/opt/sequoiadb/database/data/21100",
    43.      "Service": [
    44.        ...
    45.      ],
    46.      "NodeID": 1000
    47.    },
    48.    {
    49.      "HostName": "hostname2",
    50.      "dbpath": "/opt/sequoiadb/database/data/21100",
    51.      "Service": [
    52.        ...
    53.      ],
    54.      "NodeID": 1001
    55.    },
    56.    {
    57.      "HostName": "hostname3",
    58.      "dbpath": "/opt/sequoiadb/database/data/21100",
    59.      "Service": [
    60.        ...
    61.      ],
    62.      "NodeID": 1002
    63.    }
    64.  ],
    65.  "GroupID": 1000,
    66.  "GroupName": "group1",
    67.  "PrimaryNode": 1001,
    68.  "Role": 0,
    69.  "Status": 1,
    70.  "Version": 4,
    71.  "_id": {
    72.    "$oid": "558b9295de349a1b87451a21"
    73.  }
    74. }
    75. ...