The data lineage of a Realtime Compute job reflects the dependency between upstream and downstream data of the job. In scenarios where the business dependency between the upstream and downstream data of a job is complex, Realtime Compute provides a data topology on the Data Lineage tab to clearly show this dependency.

Lineage

Go to the Data Lineage tab

  1. Go to the Job Administration page.
    1. Log on to the Realtime Compute development platform.
    2. In the top navigation bar, click Administration.
    3. On the Jobs page that appears, click the target job name under the Job Name field.
  2. On the Job Administration page that appears, click the Data Lineage tab.

Data sampling

The Data Lineage tab provides the data sampling feature for both the source and result tables of jobs. This feature is the same as that on the Development page. This feature allows you to check data at any time on the Administration page, which helps locate faults. To enable the data sampling feature, follow these steps:
  1. Click the table name next to the source or result table of the target job.table
  2. In the Data Sampling dialog box that appears, click OK.