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README.md

Cassandra Integration

Cassandra default dashboard

Overview

Get metrics from Cassandra in real time to:

  • Visualize and monitor Cassandra states.
  • Be notified about Cassandra failovers and events.

Setup

Installation

The Cassandra check is included in the Datadog Agent package, so you don't need to install anything else on your Cassandra nodes. It's recommended to use Oracle's JDK for this integration.

Note: This check has a limit of 350 metrics per instance. The number of returned metrics is indicated in the status page. You can specify the metrics you are interested in by editing the configuration below. To learn how to customize the metrics to collect see the JMX documentation for detailed instructions. If you need to monitor more metrics, contact Datadog support.

Configuration

Metric collection

  1. The default configuration of your cassandra.d/conf.yaml file activate the collection of your Cassandra metrics. See the sample cassandra.d/conf.yaml for all available configuration options.

  2. Restart the Agent.

Log collection

Available for Agent versions >6.0

For containerized environments, follow the instructions on the Kubernetes Log Collection or Docker Log Collection pages.

  1. Collecting logs is disabled by default in the Datadog Agent, enable it in your datadog.yaml file:

    logs_enabled: true

  2. Add this configuration block to your cassandra.d/conf.yaml file to start collecting your Cassandra logs:

      logs:
    - type: file
      path: /var/log/cassandra/*.log
      source: cassandra
      service: myapplication
      log_processing_rules:
         - type: multi_line
           name: log_start_with_date
           # pattern to match: DEBUG [ScheduledTasks:1] 2019-12-30
           pattern: '[A-Z]+ +\[[^\]]+\] +\d{4}-\d{2}-\d{2}'

    Change the path and service parameter values and configure them for your environment. See the sample cassandra.d/conf.yaml for all available configuration options.

    To make sure that stacktraces are properly aggregated as one single log, a multiline processing rule can be added.

  3. Restart the Agent.

Validation

Run the Agent's status subcommand and look for cassandra under the Checks section.

Data Collected

Metrics

See metadata.csv for a list of metrics provided by this integration.

Events

The Cassandra check does not include any events.

Service Checks

See service_checks.json for a list of service checks provided by this integration.

Troubleshooting

Need help? Contact Datadog support.

Further Reading