Gunakan ListMetaDB untuk mengkueri daftar metadatabase - DataWorks - Alibaba Cloud - DataWorks

Mengkueri daftar metadatabase.

Coba sekarang

Coba API ini di OpenAPI Explorer tanpa perlu penandatanganan manual. Panggilan yang berhasil akan secara otomatis menghasilkan contoh kode SDK sesuai dengan parameter Anda. Unduh kode tersebut dengan kredensial bawaan yang aman untuk penggunaan lokal.

Test

RAM authorization

Tidak ada otorisasi untuk operasi ini. Jika Anda mengalami masalah saat menjalankan operasi ini, hubungi dukungan teknis.

Parameter permintaan

Parameter	Type	Required	Description	Example
ProjectId	integer	Yes	ID ruang kerja DataWorks. Anda dapat memanggil operasi ListProjects untuk mengkueri ID.	123
DataSourceType	string	Yes	Tipe sumber data. Atur nilainya menjadi emr.	emr
PageNum	integer	No	Nomor halaman.	1
PageSize	integer	No	Jumlah entri per halaman. Nilai default: 10. Nilai maksimum: 100.	10
ClusterId	string	No	ID kluster E-MapReduce (EMR). Anda dapat masuk ke Konsol EMR untuk mengkueri ID.	abc

Elemen respons

Element	Type	Description	Example
	object	The response parameters.
RequestId	string	The request ID.	abc
DatabaseInfo	object	The information about the metadatabases.
TotalCount	integer	The total number of the metadatabases returned.	10
DbList	array<object>	The metadatabases.
	object
Type	string	The type of the metadatabase.	HIVE
CreateTimeStamp	integer	The timestamp at which the metadatabase was created. You can convert the timestamp to the date based on the time zone that you use.	1388776825
UUID	string	The UUID of the metadatabase.	32342
ModifiedTimeStamp	integer	The timestamp at which the metadatabase was updated.	1388776837
Name	string	The name of the metadatabase.	name
OwnerId	string	The owner ID.	1232
Location	string	The URL of the metadatabase.	hdfs://localhost:777/user/hadoop/test.txt

Contoh

Respons sukses

JSONformat

{
  "RequestId": "abc",
  "DatabaseInfo": {
    "TotalCount": 10,
    "DbList": [
      {
        "Type": "HIVE",
        "CreateTimeStamp": 1388776825,
        "UUID": "32342",
        "ModifiedTimeStamp": 1388776837,
        "Name": "name",
        "OwnerId": "1232",
        "Location": "hdfs://localhost:777/user/hadoop/test.txt"
      }
    ]
  }
}

Kode kesalahan

HTTP status code	Error code	Error message
400	Invalid.Meta.AppNotExist	The MaxCompute project does not exist.
400	InvalidParameter.Meta.CommonError	The specified parameter is invalid.
400	InvalidParameter.Meta.Illegal	The app guid parameter is invalid.
400	InvalidParameter.Meta.IllegalDate	The date format is invalid.
400	InvalidParameter.Meta.IllegalPageError	The parameter for paging is invalid.
400	InvalidParameter.Meta.NotExist	The object does not exist.
500	InternalError.System	An internal system error occurred. Try again later.
500	InternalError.UserId.Missing	An internal system error occurred. Try again later.
500	InternalError.Meta.NoCalcEngine	An error occurred while retrieving the compute engine based on the MaxCompute project.
500	InternalError.Meta.TenantTimeOut	Failed to connect to the interface network.
500	InternalError.Meta.Unknown	An unknown error occurred while processing your request.
403	Forbidden.Meta.NoTenant	The user is not the owner of any tenants.
403	Forbidden.Access	Access is forbidden. Please first activate DataWorks Enterprise Edition or Flagship Edition.
429	Throttling.Api	The request for this resource has exceeded your available limit.
429	Throttling.Api.Risk	The request for this resource has exceeded your daily available limit.
429	Throttling.System	The DataWorks system is busy. Try again later.
429	Throttling.User	Your request is too frequent. Try again later.

Lihat Error Codes untuk daftar lengkap.

Catatan rilis

Lihat Release Notes untuk daftar lengkap.