To OBS¶
If the destination link of a job is the Link to OBS, configure the destination job parameters based on Table 1.
Advanced attributes are optional and not displayed by default. You can click Show Advanced Attributes to display them.
Category | Parameter | Description | Example Value |
|---|---|---|---|
Basic parameters | Bucket Name | Name of the OBS bucket that data will be written to | bucket_2 |
Write Directory | OBS directory to which data will be written. Do not add / in front of the directory name. This parameter can be configured as a macro variable of date and time and a path name can contain multiple macro variables. When the macro variable of date and time works with a scheduled job, the incremental data can be synchronized periodically. | directory/ | |
File Format | Format in which data is written. The options are as follows:
If data is migrated between file-related data sources, such as FTP, SFTP, HDFS, and OBS, the value of File Format must the same as the source file format. | CSV | |
Duplicate File Processing Method | Files with the same name and size are identified as duplicate files. If there are duplicate files during data writing, the following methods are available:
| Skip | |
Advanced attributes | Encryption | Whether to encrypt the uploaded data and the encryption mode. The options are as follows:
| KMS |
Key ID | Data encryption key. This parameter is displayed when Encryption is set to KMS. Click
| 53440ccb-3e73-4700-98b5-71ff5476e621 | |
Project ID | ID of the project to which KMS ID belongs. The default value is the ID of the project to which the current CDM cluster belongs.
| 9bd7c4bd54e5417198f9591bef07ae67 | |
DEK | This parameter is displayed only when Encryption is set to AES-256-GCM. The key consists of 64 hexadecimal numbers. Remember the key configured here because the decryption key must be the same as that configured here. If the encryption and decryption keys are inconsistent, the system does not report an exception, but the decrypted data is incorrect. | DD0AE00DFECD78BF051BCFDA25BD4E320DB0A7AC75A1F3FC3D3C56A457DCDC1B | |
IV | This parameter is displayed only when Encryption is set to AES-256-GCM. The initialization vector consists of 32 hexadecimal numbers. Remember the initialization vector configured here because the initialization vector used for decryption must be the same as that configured here. If the initialization vectors are inconsistent, the system does not report an exception, but the decrypted data is incorrect. | 5C91687BA886EDCD12ACBC3FF19A3C3F | |
Copy Content-Type | This parameter is displayed only when File Format is Binary, and both the migration source and destination are object storage. If you set this parameter to Yes, the Content-Type attribute of the source file is copied during object file migration. This function is mainly used for static website migration. The Content-Type attribute cannot be written to Archive buckets. Therefore, if you set this parameter to Yes, the migration destination must be a non-Archive bucket. | No | |
Line Separator | Lind feed character in a file. By default, the system automatically identifies \n, \r, and \r\n. This parameter is not used when File Format is set to Binary. |
| |
Field Delimiter | Field delimiter in the file. This parameter is not used when File Format is set to Binary. | , | |
File Size | This parameter is displayed only when the migration source is a database. Files are partitioned as multiple files by size so that they can be exported in proper size. The unit is MB. | 1024 | |
Validate MD5 Value | The MD5 value can be verified only when files are transferred in Binary format. KMS encryption cannot be used if the MD5 value needs to be verified. Calculate the MD5 value of the source files and verify it with the MD5 value returned by OBS. If an MD5 file exists on the migration source, the system directly reads the MD5 file from the migration source and verifies it with the MD5 value returned by OBS. | Yes | |
Record MD5 Verification Result | Whether to record the MD5 verification result when Validate MD5 Value is set to Yes | Yes | |
Record MD5 Link | OBS link to which the MD5 verification result will be written | obslink | |
Record MD5 Bucket | OBS bucket to which the MD5 verification result will be written | cdm05 | |
Record MD5 Directory | Directory to which the MD5 verification result will be written | /md5/ | |
Encoding Type | Encoding type, for example, UTF-8 or GBK. This parameter is not used when File Format is set to Binary. | GBK | |
Use Quote Character | This parameter is displayed only when File Format is CSV. It is used when database tables are migrated to file systems. If you set this parameter to Yes and a field in the source data table contains a field delimiter or line separator, CDM uses double quotation marks (") as the quote character to quote the field content as a whole to prevent a field delimiter from dividing a field into two fields, or a line separator from dividing a field into different lines. For example, if the hello,world field in the database is quoted, it will be exported to the CSV file as a whole. | No | |
Use First Row as Header | This parameter is displayed only when data is exported from a relational database to OBS and File Format is set to CSV. When a table is migrated to a CSV file, CDM does not migrate the heading line of the table by default. If you set this parameter to Yes, CDM writes the heading line of the table to the file. | No | |
Job Success Marker File | Whether to generate a marker file with a custom name in the destination directory after a job is executed successfully. If you do not specify a file name, this function is disabled by default. | finish.txt | |
Customize Hierarchical Directory | If this parameter is set to Yes, the files after migration can be stored in a custom directory. That is, only files are migrated. The directories to which the files belong are not migrated. | Yes | |
Hierarchical Directory | Custom storage directory for files after migration. The time macro variable is supported. | ${dateformat(yyyy-MM-dd HH:mm:ss, -1, DAY)} | |
Customize File Name | This parameter is displayed only when data is exported from a relational database to OBS and File Format is set to CSV. This parameter specifies the name of the file generated by OBS. The options are as follows:
| cdm |
next to the text box to select the KMS key that was created in DEW.