Errors by Revision¶

Use this query to compare error volume across revisions and detect rollout regressions.

Data Source¶

Query Pipeline¶

flowchart LR
    A[Filter by app] --> B[Filter error patterns] --> C[Summarize by revision] --> D[Sort by error volume]

Query¶

let AppName = "my-container-app";
ContainerAppConsoleLogs_CL
| where ContainerAppName_s == AppName
| where Log_s has_any ("error", "exception", "traceback", "failed")
| summarize errors=count(), firstSeen=min(TimeGenerated), lastSeen=max(TimeGenerated) by RevisionName_s
| order by errors desc

Example Output¶

Interpretation Notes¶

• Sharp error concentration on latest revision is a rollback signal.
• Compare with traffic distribution before rollback decisions.
• Normal pattern: stable low error rates on active revisions.

Limitations¶

• Requires consistent log level usage across versions.
• Does not include successful request baseline.

See Also¶

• Failed Requests App Insights
• Bad Revision Rollout and Rollback Playbook