Help Center > > User Guide> GaussDB(for Cassandra) DB Instance Management (Development Tool)> Overview> Keyspace Management

Keyspace Management

Updated at: Jun 09, 2021 GMT+08:00

Function Overview

You can go to the Keyspace Management page in either of the following ways:

  • In the keyspace list of the Home page, locate the target keyspace and click Manage in the Operation column.
  • Choose Keyspace Management on the top menu bar.
Figure 1 Keyspace management
Table 1 Functions

No.

Description

1

Displays the name of the keyspace opened on the current page. You can change the keyspace to a non-system keyspace in the current DB instance.

2

Displays the IP address and port number of the current DB instance.

3

Allows you to open the SQL window of the current keyspace.

4

Periodically collects data and stores it to the databases of DAS.

Advantages:

  • Reduces queries on user databases and the impact on the performance of user databases.
  • Improves the search performance for DB instances that contain a large number of tables and supports pagination queries.

Only structural metadata is collected, which means that user's table data is not included.

5

Consists of object list and metadata collection functional modules.

6

Allows you to perform operations.

Object List

If there are too many tables, the system will not collect the metadata and display the table list to mitigate the impact on database performance.

You can manage instance tables, views, and custom types, and perform operations including opening and viewing objects.

For details on how to manage tables, see Table Management.

Metadata Collection

DAS periodically collects DB instance metadata and stores the collected data in the DAS database. In addition, it collects only structural metadata, but not data in user tables, which ensures data security. Metadata collection delivers the following advantages:

  • Reduces queries on user keyspaces and the impact on the performance of user databases.
  • Improves the search performance for DB instances that contain a large number of tables and supports pagination queries.
  1. On the Keyspace Management page, click the Metadata Collection tab.
  2. On the displayed page, click Collect Now to start the collection. You can also stop the collection or view collection details.

    • Clear Collected Data: Clears the collected data such as metadata, keyspace structure, and table structure.
    • Delete Logs: Deletes logs. Deleted logs cannot be restored. Exercise caution when performing this operation.

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