Analyze log lines that surround an anomaly in Health Log Analytics

  • Release version: Australia
  • Updated March 12, 2026
  • 1 minute to read

    • Review the log lines around an anomaly to help you identify the root cause of a Log Analytics alert.

    Before you begin

    For background information, see Analyzing the logs around an anomaly to help find the alert's root cause in Health Log Analytics.

    Role required: evt_mgmt_operator or evt_mgmt_admin

    Procedure

    1. In the Service Operations Workspace, open a Log Analytics alert.
    2. Select the Surrounding logs tab and review the information.
      The tab displays the list of log lines that were generated one minute before and one second after the Log Analytics alert. For an explanation of the information on the tab, see Surrounding logs tab fields.
    3. Optional: View a different time span of the log lines using one of the following methods:
      • Update the time range relative to the alert to a predefined time range in the Select range list.
      • Specify a Start time or End time using the time picker.
    4. Optional: View the anomalous log data graphically as a function of time by selecting Log viewer.