You can authorize Log Service to assume the system role AliyunLogETLRole to read data from a Logstore and write transformed data to one or more Logstores. This topic describes how to authorize Log Service to assume the system role AliyunLogETLRole in Advanced data preview mode.

Procedure

  1. On the data transformation page, click Advanced.
  2. Click Preview Data.
  3. In the Add Preview Settings dialog box, click Default Role in the Authorization Method field. The System Role AliyunLogETLRole appears under Default Role. Click the system role.
    Note
    • If you have authorized Log Service to assume the system role, skip this step.
    • If you use a RAM user to log on to Log Service, you must grant read/write permissions on Log Service to the RAM user by using an Alibaba Cloud account.
    Default role
  4. On the Cloud Resource Access Authorization page, click Confirm Authorization Policy.