Information on the Overview tab for a Log Analytics alert
Summarize
Summary of Information on the Overview tab for a Log Analytics alert
The Overview tab in Health Log Analytics provides a comprehensive view of Log Analytics alerts, helping ServiceNow customers quickly understand the cause, context, and impact of an alert. It consolidates key information such as the identified issue, anomaly details, meaningful log properties, and related alerts and incidents. This enables efficient analysis and faster response to anomalies detected in log data.
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Key Features
- Identified Issue: Displays the root cause of the alert prominently in the title and a dedicated card. Users can click an information icon to understand how the issue was identified and view surrounding logs (one minute before and after the alert) to aid investigation.
- Configuration Items (CIs): Provides access to detailed information about the CIs associated with the alert. Users can navigate to the Configuration Items tab or expand the section for further details, supporting deeper analysis of affected assets.
- Impacted Services: Shows the services impacted by the alert, helping prioritize incident handling based on service disruption. Detailed information is accessible via the Impacted Services tab.
- Anomaly Card: Visualizes the anomalous activity that triggered the alert using line charts. It compares recent data (blue line) against expected behavior baselines, including same hour from the previous day (peach-shaded) and same hour from the previous week (pink-shaded). This helps identify unusual spikes or trends.
- Meaningful Log Properties: Displays bar charts representing the distribution of log property values that contributed to the anomaly. Each value’s percentage share is visually represented, helping pinpoint which log attributes are most relevant to the anomaly.
- Top Alerts: Summarizes related alerts from Similar Alerts and Repeated Alerts tabs, showing total results and linking to detailed views for further investigation.
- Top Incidents: Summarizes incidents related to the CI and related CIs impacted by the alert, providing quick access to incident details and facilitating correlation between alerts and existing incidents.
Practical Benefits for ServiceNow Customers
- Enables rapid understanding of anomalies through clear visualizations and contextual data.
- Supports efficient root cause analysis by linking alerts with related CIs, services, and incidents.
- Facilitates informed decision-making to prioritize remediation efforts based on impact and anomaly details.
- Improves operational responsiveness by providing easy navigation between overview insights and detailed tabs.
The alert Overview tab in Health Log Analytics helps you understand Log Analytics alerts.
Sections and cards on the Overview tab for Log Analytics alerts
For a detailed description of Log Analytics alerts , see Types of Health Log Analytics alerts.
- Identified issue
The "identified issue" led to the alert. The issue appears in the title for the alert and on a card on the tab. Information about the alert appears in the banner.
Figure 1. Identified issue - Click the information icon (
) to see how the issue was identified. - Click View surrounding logs to view the log lines that were generated one minute before and one minute after the alert. See Analyze log lines that surround an anomaly.
- Click the information icon (
- Configuration Items
- To view more detailed information on the CI that is associated with the alert, click the Configuration Items tab or click View more in the Configuration Items section. See Operator phase 1: Analyze and acknowledge an alert.
- Impacted services
- To view detailed information on the services that are impacted by the alerts, click the Impacted services tab. See Operator phase 1: Analyze and acknowledge an alert.
- Anomaly
- The Anomaly card illustrates the anomalous activity that led to the alert.
- The blue line shows the recent anomalous activity.
- On some charts, the lightly shaded area indicates the expected (learned
baseline) behavior.
A peach-shaded area represents the baseline values for the same hour one day earlier. A pink-shaded area shows the values for the same period in the previous week.
- Click the information icon to see how the anomaly was identified: .
In this example, the peach-shaded area shows the same data for the same hour one day earlier. The spike in the metric value (events per minute) is clearly visible.Figure 2. Anomaly card In this example, the pink-shaded area represents the baseline values for the same hour in the previous week.Figure 3. Anomaly card with baseline values one week earlier For more information on the kinds of anomalies that you might encounter, see Types of anomalous behavior.
- Meaningful log properties
- On the Meaningful log properties card, each bar chart shows the distribution of values for a single log property that contributed to the anomaly. Each property value is associated with a color. The length of a color bar correlates to the percentage that the property value
holds in comparison with all other values for the property. For the p_a5 property in the example, the value EUR appeared in 56.12% of log lines, GBP in 13.67%, and so on.
Figure 4. Meaningful log properties - Top alerts
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The Top alerts card displays summaries of data from the Similar alerts and Repeated alerts tabs. The Total results value is the sum of the two values. Click More details to open the Alert Insight Similar Alerts tab. For details, see Information on the Alert Insight Similar Alerts tab.
Figure 5. Top alerts - Top incidents
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The Top incidents card displays summaries of data from the Incidents on CI and Incidents on related CIs tabs. The Total results value is the sum of the two values. Click More details to open the Incidents on CI tab.
Figure 6. Top incidents