PolarDB:Configure cluster parameters

Prerequisites

Before you begin, make sure that you have:

• A PolarDB cluster. To find your cluster, go to the Clusters page in the PolarDB console.

• Reviewed the Force Restart column for each parameter you plan to modify. If a parameter has Yes in this column, modifying it causes the cluster to restart. Schedule your business before you modify the parameter.

Go to the Parameters page

The following steps apply to both modifying and viewing parameter history.

1. Log on to the PolarDB console. In the left-side navigation pane, click Clusters. In the upper-left corner, select the region of the cluster. In the cluster list, find the cluster and click its ID to go to its Basic Information page.

2. In the left-side navigation pane, choose Settings and Management > Parameters.

Modify cluster parameters

1. On the Parameters page, click Modify Parameters in the upper-left corner.

2. Find the parameter that you want to modify and enter a new value. > Note: > > - Enter a parameter value that is specified in the Range to Be Modified column on the right of the parameter. This column shows the valid values or acceptable range for each parameter. If you enter a value outside the allowed range, you receive an error message after you click Submit Changes. > - You can move the pointer over the icon next to the parameter name to view the description of the parameter.

3. Click Submit Changes in the upper-left corner. Then, in the Save Changes message, click OK. > Warning: If the Force Restart column of a parameter displays Yes, the cluster is restarted after you click OK. Schedule your business before you modify the parameter. Proceed with caution.

View parameter modification history

1. On the Parameters page, click Parameter Modification History in the upper-left corner.

2. Select a time range and click OK.

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