Viewing Alarms in LTS

Prerequisites

You have created an alarm rule.

Procedure

1. Log in to the LTS console.
2. Choose Log Alarms in the navigation pane.
3. Click the Alarms tab. The alarms generated in 30 minutes from now and their trend charts are displayed by default.
4. Set criteria to search for your target alarms.
   • In the search box above the alarm list, select a log group, log stream, alarm severity, and rule name.
   • Set a time range. By default, 30 minutes is specified (relative time from now).
     There are three types of time range: relative time from now, relative time from last, and specified time. Select a time range as required.

     • From now: queries log data generated in a time range that ends with the current time, such as the previous 1, 5, or 15 minutes. For example, if the current time is 19:20:31 and 1 hour is selected as the relative time from now, the charts on the dashboard display the log data that is generated from 18:20:31 to 19:20:31.
     • From last: queries log data generated in a time range that ends with the current time, such as the previous 1 or 15 minutes. For example, if the current time is 19:20:31 and 1 hour is selected as the relative time from last, the charts on the dashboard display the log data that is generated from 18:00:00 to 19:00:00.
     • Specified: queries log data that is generated in a specified time range.

5. To view the complete details of an alarm, on the Active Alarms tab page, hover over the Details column or click the entry in the Alarm Name column. The alarm details will appear in the right pane.

   After a reported fault is rectified, you can clear the alarm by clicking Clear in the corresponding row on the Active Alarms tab page. The cleared alarm will then be displayed on the Historical Alarms tab page.

   If you have configured search criteria to filter alarms, you need to manually refresh the alarm list. To enable automatic refresh, click in the upper right corner and select Refresh every 30 seconds, Refresh every 1 minute, or Refresh every 5 minutes from the drop-down list. If you want to manually refresh the alarm list after automatic refresh is enabled, select Refresh Now from the drop-down list.

Helpful Links

• LTS allows you to query active or historical alarms by calling APIs. For details, see Querying the Active or Historical Alarm List.
• LTS allows you to delete active alarms by calling APIs. For details, see Deleting an Active Alarm.