{
    "port": 31234,
    "task": [
        {
            "memo": "from表示源数据,|分隔连接、库名、表名，还可以加|D或|U或|U_字段名，D表删除,U表更新默认是_etl值为1",
            "from": "127.0.0.1:27082|jyqyfw_test|usermail_xhs_yj",
            "to": "127.0.0.1:27082|jyqyfw_test|usermail",
            "thread": 2,
            "bulk": 100,
            "selectFields": "{'title':1,'send_rule':1}",
            "query": "{'send_rule':{'$exists':1}}",
            "cron": "*/1 * * * * ?",
            "name": "迁移"
        }
    ]
}