Vacuum Element (ADF)

Contains settings used by the data removal process, which removes obsolete event and notification data from the application database.

語法

<ApplicationExecutionSettings>
    ...
    <Vacuum>

Element Characteristics

Characteristic	Description
Data type	None.
Default value	None.
Occurrence	Optional once per ApplicationExecutionSettings element.
Updates	Can be added and deleted when updating the application.

Element Relationships

Relationship	Elements
Parent element	ApplicationExecutionSettings Element (ADF)
Child elements	RetentionAge Element (ADF) VacuumSchedule Element (ADF)

備註

Vacuuming removes obsolete event and notification data from the application database. For more information about the vacuuming process, see 移除過時的應用程式資料.

Vacuuming schedules cannot overlap. If schedules overlap, Notification Services stops the earlier vacuuming process before the later one starts.

If you omit the Vacuum element and its child elements, the vacuuming process does not run and obsolete data is not automatically removed from the application database.

範例

The following example shows how to define a data retention age of three days (P3DT00H00M00S) and to configure the vacuuming process to run from 3:00 A.M. to 5:00 A.M. (UTC) and from 11:00 P.M. to 1:00 A.M. (UTC) every day.

<Vacuum>
    <RetentionAge>P3DT00H00M00S</RetentionAge>
    <VacuumSchedule>
        <Schedule>
            <StartTime>23:00:00</StartTime>
            <Duration>P0DT02H00M00S</Duration>
        </Schedule>
        <Schedule>
            <StartTime>03:00:00</StartTime>
            <Duration>P0DT02H00M00S</Duration>
        </Schedule>
    </VacuumSchedule>
</Vacuum>

請參閱

參考

Application Definition File Reference

其他資源

設定資料移除
更新執行個體及應用程式

說明及資訊

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