The Azure Cassandra DB integration collects platform metrics and diagnostic logs from your Azure Managed Instance for Apache Cassandra clusters. Once enabled, the SigNoz agent discovers Cassandra cluster resources in your monitored resource groups and configures telemetry collection.
This integration requires SigNoz Azure agent version v0.0.12 or later.
This integration collects platform metrics for the Microsoft.DocumentDB/cassandraClusters resource type — Azure Managed Instance for Apache Cassandra.
This integration is distinct from Azure Cosmos DB for Apache Cassandra (the Cassandra API offered within a Cosmos DB account). The Cosmos DB Cassandra API exposes a different set of metrics and is covered by the Azure Cosmos DB integration. Metrics from the two integrations are separate and are not duplicated.
Getting started
Connect your Azure subscription first. See Azure One-Click Integrations for setup instructions.
Once connected:
- In SigNoz, navigate to Integrations > Microsoft Azure.
- Select Cassandra DB from the left panel.
- Toggle Log Collection and Metric Collection on.
The agent deploys the necessary Event Hubs and diagnostic settings in the background. Data starts flowing within a few minutes. Navigate to Dashboards and open the Azure Cassandra DB Overview dashboard to confirm metrics are appearing.
What's collected
Logs
| Name | Path | Type |
|---|---|---|
| Resource ID | resources.azure.resource.id | string |
Key metrics
The table below lists representative metrics; see the Data Collected tab in the integration for the complete list.
| Metric name | Unit | Type |
|---|---|---|
azure_cassandra_cache_hit_rate_average | Percent | Gauge |
azure_cassandra_client_connected_native_clients_average | Count | Gauge |
azure_cassandra_client_request_latency_p99_average | Count | Gauge |
azure_cassandra_client_request_failures3_count | Count | Gauge |
azure_cassandra_client_request_timeouts3_count | Count | Gauge |
azure_cassandra_cql_prepared_statements_executed_count | Count | Gauge |
azure_cassandra_cql_regular_statements_executed_count | Count | Gauge |
azure_cassandra_dropped_message_count_count | Count | Gauge |
azure_cassandra_jvm_gc_count_count | Count | Gauge |
azure_cassandra_jvm_gc_time_average | Milliseconds | Gauge |
Host-level metrics — CPU usage, memory utilization, disk utilization, and IOPS — are reported for each node in the cluster alongside the Cassandra-specific metrics above.
Dashboards
The integration includes a pre-built Azure Cassandra DB dashboard. Pre-built dashboards are locked and cannot be edited. To customize, use Export JSON from the dashboard menu and import it as a new dashboard.
Key panels include:
- CPU usage (active and average across CPUs)
- Memory utilization and disk utilization
- IOPS
- Client request latency p99
- Client request failures and timeouts
- Connected native clients
- Prepared and regular CQL statements executed
Next steps
- Create alerts to get notified on high p99 latency, request failures, or timeouts
- Build custom dashboards to correlate database metrics with application performance
Get Help
If you need help with the steps in this topic, please reach out to us on SigNoz Community Slack. If you are a SigNoz Cloud user, please use in product chat support located at the bottom right corner of your SigNoz instance or contact us at cloud-support@signoz.io.
