Skip to content

Scaling Events

Use this query to inspect scale-out and scale-in related system signals for KEDA and platform scaling decisions.

Data Source

Table Schema Note
ContainerAppSystemLogs_CL Legacy schema. If empty, try ContainerAppSystemLogs (non-_CL).

Query Pipeline

flowchart TD
    A[Filter by app] --> B[Filter scale terms] --> C[Project scale context] --> D[Sort by time]

Query

let AppName = "my-container-app";
ContainerAppSystemLogs_CL
| where ContainerAppName_s == AppName
| where Log_s has_any ("scale", "keda", "replica", "autoscale", "trigger")
| project TimeGenerated, RevisionName_s, ReplicaName_s, Reason_s, Log_s
| order by TimeGenerated desc

Example Output

TimeGenerated RevisionName_s ReplicaName_s Reason_s Log_s
2026-04-12T05:57:38.558Z ca-cakqltest-54kxmtjeuidri--nu8o2ji KEDAScalersStarted KEDA is starting a watch for revision 'ca-cakqltest-54kxmtjeuidri--nu8o2ji' to monitor scale operations
2026-04-12T05:57:38.558Z ca-cakqltest-54kxmtjeuidri--nu8o2ji ca-cakqltest-54kxmtjeuidri--nu8o2ji-5cbf89478b-hfgkq AssigningReplica Replica 'ca-cakqltest-54kxmtjeuidri--nu8o2ji-5cbf89478b-hfgkq' has been scheduled to run on a node

Interpretation Notes

  • Pair this with load metrics to evaluate scaling lag.
  • Frequent scale oscillation indicates threshold or stabilization tuning needs.
  • Normal pattern: predictable scale reactions during known traffic peaks.

Limitations

  • Text terms may vary by runtime platform version.
  • Does not directly expose source metric values for all triggers.

See Also