Modifying Parameters of GeminiDB Influx Instances

Usage Notes

Currently, parameters of GeminiDB Influx instances only on a single node or in a cluster can be modified.

Modifying a Custom Parameter Template and Applying It to an Instance

1. Log in to the Huawei Cloud console.
2. In the service list, choose Databases > GeminiDB Influx API.
3. In the navigation pane on the left, choose Parameter Templates.
4. Click the Custom Templates tab, locate the parameter template whose parameters you want to modify, and click its name.
5. On the Parameters page, modify parameters. For details about the parameters, see Modifying Parameters of GeminiDB Influx Instances or Table 2.
   Figure 1 Modifying parameters in the parameter template
   
   • To save the modifications, click Save.
   • To cancel the modifications, click Cancel.
   • To preview the modifications, click Preview.

     Table 1 Parameters of a GeminiDB Influx cluster instance

     Parameter	Effective upon Restart	Default Value	Value Range	Description
     max-concurrent-query-limit	Yes	4	4–32	Concurrent queries. If this parameter is set to default, the value varies with the CPU specifications.
     max-concurrent-write-limit	Yes	16	16–128	Concurrent writes. If this parameter is set to default, the value varies with the CPU specifications.
     max-connection-limit	Yes	500	500–4,000	Maximum connections. If this parameter is set to default, the value varies with the CPU specifications.
     query-timeout	Yes	0	0–60	Query command timeout interval in minutes

     Table 2 Parameters of a single-node GeminiDB Influx instance

     Parameter	Effective upon Restart	Default Value	Value Range	Description
     max-concurrent-query-limit	No	2	2–16	Concurrent queries. If this parameter is set to default, the value varies with the CPU specifications.
     max-concurrent-write-limit	No	4	4–64	Concurrent writes. If this parameter is set to default, the value varies with the CPU specifications.
     max-connection-limit	No	250	250–2,000	Maximum connections. If this parameter is set to default, the value varies with the CPU specifications.
     query-timeout	Yes	0	0–60	Query command timeout interval in minutes

     Figure 2 Preview Change
     

6. After parameters are modified, click Change History to view parameter modification details.
   For details about how to view parameter modification details, see Viewing Parameter Change History.

   NOTICE:

   • The modifications take effect only after you apply the parameter template to instances. For details, see Applying a Parameter Template.
   • The change history page displays only the modifications of the last seven days.

Modifying Parameters of an Instance

1. Log in to the Huawei Cloud console.
2. In the service list, choose Databases > GeminiDB Influx API.
3. In the navigation pane on the left, choose Instances. In the instance list, locate the instance whose parameters you want to modify and click its name.
4. In the navigation pane on the left, choose Parameters. On the displayed page, modify parameters as required.
   Figure 3 Modifying parameters
   
   • To save the modifications, click Save.
   • To cancel the modifications, click Cancel.
   • To preview the modifications, click Preview.

5. After parameters are modified, click Change History.
   For details about how to view parameter modification details, see Viewing Parameter Change History.

   NOTICE:

   After you modify instance parameters, the modifications immediately take effect for the instance.

   Check the value in the Effective upon Restart column.

   • If the value is Yes and the instance status on the Instances page is Pending restart, restart the instance for the modifications to take effect.
   • If the value is No, the modifications take effect immediately.