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Create a Duplicated History Database

  1. On the "Databases" -> "History Database" page, click the "Add" button. alt text
  2. In the following pop-up window, select the Duplicated History Database and click "Next" button. alt text
  3. Fill in the configuration and click "OK" button to save. alt text

Configuration Description

Configuration Item Description
Name Name of the history database.
Description Description Information of the history database.
History Database1 The database connection used for this configuration, derived from the history database configured on the History database list page.
History Database2 The database connection used for this configuration, derived from the history database configured on the History database list page.
Enable Hierarchical Query Whether or not to hierarchize historical data queries.
Off: All historical data query history database1, when history database1 fails query history database2
On: All historical data query according to the query configuration, respectively query history database1 and history database2, when history database1 fails query history database2
Master Database Query Range Historical data queries with query time within this configuration range will query history database1.