使用 OpenAPI 运维集群

你可以通过 OpenAPI 完成 DM 集群的如下运维操作：

• 下线 DM-master 节点
• 下线 DM-worker 节点

数据源相关 API

• 创建数据源
• 删除数据源
• 对数据源开启 relay-log 功能
• 对数据源暂停 relay-log 功能
• 更改数据源和 DM-worker 的绑定关系
• 获取数据源的指定数据库的表名列表

同步任务相关 API

• 创建同步任务
• 停止同步任务
• 暂停同步任务
• 获取同步任务关联数据源的数据库名列表
• 获取同步任务关联数据源的数据表的创建语句
• 删除同步任务关联数据源的数据表

本文档以下部分描述当前提供的 API 的具体使用方法。

API 统一错误格式

对 API 发起的请求后，如发生错误，返回错误信息的格式如下所示：

{
    "error_msg": "",
    "error_code": ""
}

如上所示，error_msg 描述错误信息，error_code 则是对应的错误码。

获取 DM-master 节点信息

该接口是一个同步接口，请求成功会返回对应节点的状态信息。

GET /api/v1/cluster/masters

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/cluster/masters' \
  -H 'accept: application/json'

{
  "total": 1,
  "data": [
    {
      "name": "master1",
      "alive": true,
      "leader": true,
      "addr": "127.0.0.1:8261"
    }
  ]
}

下线 DM-master 节点

该接口是一个同步接口，请求成功后返回体的 Status Code 是 204。

请求 URI

DELETE /api/v1/cluster/masters/{master-name}

使用样例

curl -X 'DELETE' \
  'http://127.0.0.1:8261/api/v1/cluster/masters/master1' \
  -H 'accept: */*'

获取 DM-worker 节点信息

该接口是一个同步接口，请求成功会返回对应节点的状态信息。

请求 URI

GET /api/v1/cluster/workers

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/cluster/workers' \
  -H 'accept: application/json'

{
  "total": 1,
  "data": [
    {
      "name": "worker1",
      "addr": "127.0.0.1:8261",
      "bound_stage": "bound",
      "bound_source_name": "mysql-01"
    }
  ]
}

下线 DM-worker 节点

该接口是一个同步接口，请求成功后返回体的 Status Code 是 204。

请求 URI

DELETE /api/v1/cluster/workers/{worker-name}

使用样例

curl -X 'DELETE' \
  'http://127.0.0.1:8261/api/v1/cluster/workers/worker1' \
  -H 'accept: */*'

创建数据源

该接口是一个同步接口，请求成功会返回对应数据源信息。

请求 URI

POST /api/v1/sources

使用样例

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/sources' \
  -H 'accept: application/json' \
  -H 'Content-Type: application/json' \
  -d '{
  "source_name": "mysql-01",
  "host": "127.0.0.1",
  "port": 3306,
  "user": "root",
  "password": "123456",
  "enable_gtid": false,
  "security": {
    "ssl_ca_content": "",
    "ssl_cert_content": "",
    "ssl_key_content": "",
    "cert_allowed_cn": [
      "string"
    ]
  },
  "purge": {
    "interval": 3600,
    "expires": 0,
    "remain_space": 15
  }
}'

{
  "source_name": "mysql-01",
  "host": "127.0.0.1",
  "port": 3306,
  "user": "root",
  "password": "123456",
  "enable_gtid": false,
  "security": {
    "ssl_ca_content": "",
    "ssl_cert_content": "",
    "ssl_key_content": "",
    "cert_allowed_cn": [
      "string"
    ]
  },
  "purge": {
    "interval": 3600,
    "expires": 0,
    "remain_space": 15
  },
  "status_list": [
    {
      "source_name": "mysql-replica-01",
      "worker_name": "worker-1",
      "relay_status": {
        "master_binlog": "(mysql-bin.000001, 1979)",
        "master_binlog_gtid": "e9a1fc22-ec08-11e9-b2ac-0242ac110003:1-7849",
        "relay_dir": "./sub_dir",
        "relay_binlog_gtid": "e9a1fc22-ec08-11e9-b2ac-0242ac110003:1-7849",
        "relay_catch_up_master": true,
        "stage": "Running"
      },
      "error_msg": "string"
    }
  ]
}

获取数据源列表

该接口是一个同步接口，请求成功会返回数据源列表信息。

请求 URI

GET /api/v1/sources

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/sources?with_status=true' \
  -H 'accept: application/json'

{
  "data": [
    {
      "enable_gtid": false,
      "host": "127.0.0.1",
      "password": "******",
      "port": 3306,
      "purge": {
        "expires": 0,
        "interval": 3600,
        "remain_space": 15
      },
      "security": null,
      "user": "root"
    },
    {
      "enable_gtid": false,
      "host": "127.0.0.1",
      "password": "******",
      "port": 3307,
      "purge": {
        "expires": 0,
        "interval": 3600,
        "remain_space": 15
      },
      "security": null,
      "source_name": "mysql-02",
      "user": "root"
    }
  ],
  "total": 2
}

请求 URI

DELETE /api/v1/sources/{source-name}

使用样例

curl -X 'DELETE' \
  'http://127.0.0.1:8261/api/v1/sources/mysql-01?force=true' \
  -H 'accept: application/json'

获取数据源状态

该接口是一个同步接口，请求成功会返回对应节点的状态信息。

请求 URI

GET /api/v1/sources/{source-name}/status

使用样例

{
  "total": 1,
  "data": [
    {
      "source_name": "mysql-replica-01",
      "worker_name": "worker-1",
      "relay_status": {
        "master_binlog": "(mysql-bin.000001, 1979)",
        "master_binlog_gtid": "e9a1fc22-ec08-11e9-b2ac-0242ac110003:1-7849",
        "relay_dir": "./sub_dir",
        "relay_binlog_gtid": "e9a1fc22-ec08-11e9-b2ac-0242ac110003:1-7849",
        "relay_catch_up_master": true,
        "stage": "Running"
      },
      "error_msg": "string"
    }
  ]
}

对数据源开启 relay-log 功能

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/sources/{source-name}/start-relay

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/sources/mysql-01/start-relay' \
  -H 'accept: */*' \
  -H 'Content-Type: application/json' \
  -d '{
  "worker_name_list": [
    "worker-1"
  ],
  "relay_binlog_name": "mysql-bin.000002",
  "relay_binlog_gtid": "e9a1fc22-ec08-11e9-b2ac-0242ac110003:1-7849",
  "relay_dir": "./relay_log"
}'

对数据源停止 relay-log 功能

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/sources/{source-name}/stop-relay

使用样例

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/sources/mysql-01/stop-relay' \
  -H 'accept: */*' \
  -H 'Content-Type: application/json' \
  -d '{
  "worker_name_list": [
    "worker-1"
  ]
}'

对数据源暂停 relay-log 功能

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/sources/{source-name}/pause-relay

使用样例

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/sources/mysql-01/pause-relay' \
  -H 'accept: */*'

对数据源恢复 relay-log 功能

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/sources/{source-name}/resume-relay

使用样例

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/sources/mysql-01/resume-relay' \
  -H 'accept: */*'

更改数据源和 DM-worker 的绑定关系

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/sources/{source-name}/transfer

使用样例

  'http://127.0.0.1:8261/api/v1/sources/mysql-01/transfer' \
  -H 'accept: */*' \
  -H 'Content-Type: application/json' \
  -d '{
  "worker_name": "worker-1"
}'

获取数据源的数据库名列表

该接口是一个同步接口，请求成功会返回对应的列表。

请求 URI

GET /api/v1/sources/{source-name}/schemas

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/sources/source-1/schemas' \
  -H 'accept: application/json'

[
  "db1"
]

获取数据源的指定数据库的表名列表

该接口是一个同步接口，请求成功会返回对应的列表。

请求 URI

GET /api/v1/sources/{source-name}/schemas/{schema-name}

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/sources/source-1/schemas/db1' \
  -H 'accept: application/json'

[
  "table1"
]

创建同步任务

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/tasks

使用样例

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/tasks' \
  -H 'accept: application/json' \
  -H 'Content-Type: application/json' \
  -d '{
  "remove_meta": false,
  "task": {
    "name": "task-1",
    "task_mode": "all",
    "shard_mode": "pessimistic",
    "meta_schema": "dm-meta",
    "enhance_online_schema_change": true,
    "on_duplicate": "overwrite",
    "target_config": {
      "host": "127.0.0.1",
      "port": 3306,
      "user": "root",
      "password": "123456",
      "security": {
        "ssl_ca_content": "",
        "ssl_cert_content": "",
        "ssl_key_content": "",
        "cert_allowed_cn": [
          "string"
        ]
      }
    },
    "binlog_filter_rule": {
      "rule-1": {
        "ignore_event": [
          "all dml"
        ],
        "ignore_sql": [
          "^Drop"
        ]
      },
      "rule-2": {
        "ignore_event": [
          "all dml"
        ],
        "ignore_sql": [
          "^Drop"
        ]
      },
      "rule-3": {
        "ignore_event": [
          "all dml"
        ],
        "ignore_sql": [
          "^Drop"
        ]
      }
    },
    "table_migrate_rule": [
      {
        "source": {
          "source_name": "source-name",
          "schema": "db-*",
          "table": "tb-*"
        },
        "target": {
          "schema": "db1",
          "table": "tb1"
        },
        "binlog_filter_rule": [
          "rule-1",
          "rule-2",
          "rule-3",
        ]
      }
    ],
    "source_config": {
      "full_migrate_conf": {
        "export_threads": 4,
        "import_threads": 16,
        "data_dir": "./exported_data",
        "consistency": "auto"
      },
      "incr_migrate_conf": {
        "repl_threads": 16,
        "repl_batch": 100
      },
      "source_conf": [
        {
          "source_name": "mysql-replica-01",
          "binlog_name": "binlog.000001",
          "binlog_pos": 4,
          "binlog_gtid": "03fc0263-28c7-11e7-a653-6c0b84d59f30:1-7041423,05474d3c-28c7-11e7-8352-203db246dd3d:1-170"
        }
      ]
    }
  },
  "source_name_list": [
    "source-1"
  ]
}'

{
  "name": "task-1",
  "task_mode": "all",
  "shard_mode": "pessimistic",
  "meta_schema": "dm-meta",
  "enhance_online_schema_change": true,
  "on_duplicate": "overwrite",
  "target_config": {
    "host": "127.0.0.1",
    "port": 3306,
    "user": "root",
    "password": "123456",
    "security": {
      "ssl_ca_content": "",
      "ssl_cert_content": "",
      "ssl_key_content": "",
      "cert_allowed_cn": [
        "string"
      ]
    }
  },
  "binlog_filter_rule": {
    "rule-1": {
      "ignore_event": [
        "all dml"
      ],
      "ignore_sql": [
        "^Drop"
      ]
    },
    "rule-2": {
      "ignore_event": [
        "all dml"
      ],
      "ignore_sql": [
        "^Drop"
      ]
    },
    "rule-3": {
      "ignore_event": [
        "all dml"
      ],
      "ignore_sql": [
      ]
    }
  },
  "table_migrate_rule": [
    {
      "source": {
        "source_name": "source-name",
        "schema": "db-*",
        "table": "tb-*"
      },
      "target": {
        "schema": "db1",
        "table": "tb1"
      },
      "binlog_filter_rule": [
        "rule-1",
        "rule-2",
        "rule-3",
      ]
    }
  ],
  "source_config": {
    "full_migrate_conf": {
      "export_threads": 4,
      "import_threads": 16,
      "data_dir": "./exported_data",
      "consistency": "auto"
    },
    "incr_migrate_conf": {
      "repl_threads": 16,
      "repl_batch": 100
    },
    "source_conf": [
      {
        "source_name": "mysql-replica-01",
        "binlog_name": "binlog.000001",
        "binlog_pos": 4,
      }
    ]
  }
}

请求 URI

GET /api/v1/tasks

使用样例

{
  "total": 2,
  "data": [
    {
      "name": "task-1",
      "task_mode": "all",
      "shard_mode": "pessimistic",
      "meta_schema": "dm-meta",
      "enhance_online_schema_change": true,
      "on_duplicate": "overwrite",
      "target_config": {
        "host": "127.0.0.1",
        "port": 3306,
        "user": "root",
        "password": "123456",
        "security": {
          "ssl_ca_content": "",
          "ssl_cert_content": "",
          "ssl_key_content": "",
          "cert_allowed_cn": [
            "string"
          ]
        }
      },
      "binlog_filter_rule": {
        "rule-1": {
          "ignore_event": [
            "all dml"
          ],
          "ignore_sql": [
            "^Drop"
          ]
        },
        "rule-2": {
          "ignore_event": [
            "all dml"
          ],
          "ignore_sql": [
            "^Drop"
          ]
        },
        "rule-3": {
          "ignore_event": [
            "all dml"
          ],
          "ignore_sql": [
            "^Drop"
          ]
        }
      },
      "table_migrate_rule": [
        {
          "source": {
            "source_name": "source-name",
            "schema": "db-*",
            "table": "tb-*"
          },
          "target": {
            "schema": "db1",
            "table": "tb1"
          },
          "binlog_filter_rule": [
            "rule-1",
            "rule-2",
            "rule-3",
          ]
        }
      ],
      "source_config": {
        "full_migrate_conf": {
          "export_threads": 4,
          "import_threads": 16,
          "data_dir": "./exported_data",
          "consistency": "auto"
        },
        "incr_migrate_conf": {
          "repl_threads": 16,
          "repl_batch": 100
        },
        "source_conf": [
          {
            "source_name": "mysql-replica-01",
            "binlog_name": "binlog.000001",
            "binlog_pos": 4,
            "binlog_gtid": "03fc0263-28c7-11e7-a653-6c0b84d59f30:1-7041423,05474d3c-28c7-11e7-8352-203db246dd3d:1-170"
          }
        ]
      }
    }
  ]
}

停止同步任务

这是一个异步接口，请求成功的 Status Code 是 204，可通过获取同步任务状态接口获取最新的状态。

DELETE /api/v1/tasks/{task-name}

使用样例

curl -X 'DELETE' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1' \
  -H 'accept: */*'

获取同步任务状态

该接口是一个同步接口，请求成功会返回对应节点的状态信息。

请求 URI

GET /api/v1/tasks/task-1/status

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1/status?stage=running' \
  -H 'accept: application/json'

{
  "total": 1,
  "data": [
    {
      "name": "string",
      "source_name": "string",
      "worker_name": "string",
      "stage": "runing",
      "unit": "sync",
      "unresolved_ddl_lock_id": "string",
      "load_status": {
        "finished_bytes": 0,
        "total_bytes": 0,
        "progress": "string",
        "meta_binlog": "string",
        "meta_binlog_gtid": "string"
      },
      "sync_status": {
        "total_events": 0,
        "total_tps": 0,
        "recent_tps": 0,
        "master_binlog": "string",
        "master_binlog_gtid": "string",
        "syncer_binlog": "string",
        "syncer_binlog_gtid": "string",
        "blocking_ddls": [
          "string"
        ],
        "unresolved_groups": [
          {
            "target": "string",
            "ddl_list": [
              "string"
            ],
            "first_location": "string",
            "synced": [
              "string"
            ],
            "unsynced": [
              "string"
            ]
          }
        ],
        "synced": true,
        "binlog_type": "string",
        "seconds_behind_master": 0
      }
    }
  ]
}

暂停同步任务

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/tasks/task-1/pause

使用样例

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1/pause' \
  -H 'accept: */*' \
  -H 'Content-Type: application/json' \
  -d '[
  "source-1"
]'

恢复同步任务

这是一个异步接口，请求成功的 Status Code 是 200，可通过接口获取最新的状态。

请求 URI

POST /api/v1/tasks/task-1/resume

使用样例

curl -X 'POST' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1/resume' \
  -H 'accept: */*' \
  -H 'Content-Type: application/json' \
  -d '[
  "source-1"
]'

获取同步任务关联数据源的数据库名列表

该接口是一个同步接口，请求成功会返回对应的列表。

请求 URI

GET /api/v1/tasks/{task-name}/sources/{source-name}/schemas

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1/sources/source-1/schemas' \
  -H 'accept: application/json'

[
  "db1"
]

获取同步任务关联数据源的数据表名列表

该接口是一个同步接口，请求成功会返回对应的列表。

请求 URI

GET /api/v1/tasks/{task-name}/sources/{source-name}/schemas/{schema-name}

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1/sources/source-1/schemas/db1' \
  -H 'accept: application/json'

[
  "table1"
]

获取同步任务关联数据源的数据表的创建语句

该接口是一个同步接口，请求成功会返回对应的创建语句。

请求 URI

GET /api/v1/tasks/{task-name}/sources/{source-name}/schemas/{schema-name}/{table-name}

使用样例

curl -X 'GET' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1/sources/source-1/schemas/db1/table1' \
  -H 'accept: application/json'

{
  "schema_name": "db1",
  "table_name": "table1",
  "schema_create_sql": "CREATE TABLE `t1` (`id` int(11) NOT NULL AUTO_INCREMENT,PRIMARY KEY (`id`) /*T![clustered_index] CLUSTERED */) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin"
}

更新同步任务关联数据源的数据表的创建语句

该接口是一个同步接口，返回体的 Status Code 是 200。

请求 URI

POST /api/v1/tasks/{task-name}/sources/{source-name}/schemas/{schema-name}/{table-name}

使用样例

删除同步任务关联数据源的数据表

该接口是一个同步接口，返回体的 Status Code 是 200。

请求 URI

DELETE /api/v1/tasks/{task-name}/sources/{source-name}/schemas/{schema-name}/{table-name}

curl -X 'DELETE' \
  'http://127.0.0.1:8261/api/v1/tasks/task-1/sources/source-1/schemas/db1/table1' \