Cost Meter Alert Configuration Guide with Examples

Use these examples to configure common cost monitoring scenarios with meter alerts.

Examples

Example 1: Alert for Monthly Log Costs Exceeding $500

• Go to the billing section to find your per-GB log price, which may vary based on your retention settings.

• In the query builder, select the signoz.meter.log.size meter metric and set timeAggregation to Increase to sum the total log usage.

• Use a formula to convert usage to cost: (A / 1e9) * (cost per GB).

• Set the alert threshold on this formula with In Total aggregation.

• Choose a Cumulative window alert with time range set to Current Month, and ensure the start date matches your billing cycle as specified on the billing page.

• For accuracy, set the evaluation window to start at 00:00:00 UTC (since billing is calculated in UTC), or pick the corresponding time window in your local timezone.

• Select your preferred notification channel and save the alert.

Example 2: Alert for Monthly Total Costs Exceeding $1000

• On the billing page, identify the per-GB price for logs and spans, and the per-million data point price for metrics.

• In the query builder, select signoz.meter.log.size with timeAggregation set to Increase.

• Additionally, add queries for signoz.meter.span.size and signoz.meter.metric.datapoint.count with the same aggregation.

• Combine these with a formula to calculate total cost:

  • Logs: (A / 1e9) * (cost per GB of logs)
  • Spans: (B / 1e9) * (cost per GB of spans)
  • Metrics: (C / 1e6) * (cost per million data points)
  • Total: Sum all three components.

• Apply the formula as the threshold condition with In Total aggregation.

• Use a Cumulative window alert, select Current Month as the time range, and set the start date based on your billing cycle.

• Make sure the evaluation window aligns with 00:00:00 UTC, or select the appropriate range for your timezone.

• Choose a notification channel and save the alert.

Example 3: Alert When an Ingestion Key Is Nearing Its Daily Quota

• Go to the ingestion keys page and expand the key you want to monitor.

• Click the bell icon next to the daily limit for the relevant signal type.

• You will be redirected to the alerts page with a pre-filled query that includes all the necessary fields.

• Give the alert a meaningful name, choose a notification channel, and save.

Example 4: Alert When Any Service Ingests Over 1 Million Spans in a Day

• Select the signoz.meter.span.count metric, and add a group by for service.name to monitor spans per service.

• Set the threshold to 1,000,000 spans, using In Total aggregation.

• Set the evaluation window to Cumulative and pick Current Day since we are interested in daily usage limits.

• Configure notifications and save the alert.