Get metrics from mapreduce service in real time to:

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

The Mapreduce check is included in the Datadog Agent package, so you don't need to install anything else on your servers.

To configure this check for an Agent running on a host:

1. Edit the mapreduce.d/conf.yaml file, in the conf.d/ folder at the root of your Agent's configuration directory to point to your server and port, set the masters to monitor. See the sample mapreduce.d/conf.yaml for all available configuration options.

2. Restart the Agent.

For containerized environments, see the Autodiscovery Integration Templates for guidance on applying the parameters below.

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

   logs_enabled: true

2. Uncomment and edit the logs configuration block in your mapreduce.d/conf.yaml file. Change the type, path, and service parameter values based on your environment. See the sample mapreduce.d/conf.yaml for all available configuration options.

   logs:
     - type: file
       path: <LOG_FILE_PATH>
       source: mapreduce
       service: <SERVICE_NAME>
       # To handle multi line that starts with yyyy-mm-dd use the following pattern
       # log_processing_rules:
       #   - type: multi_line
       #     pattern: \d{4}\-\d{2}\-\d{2} \d{2}:\d{2}:\d{2},\d{3}
       #     name: new_log_start_with_date

3. Restart the Agent.

See Datadog's documentation for additional information on how to configure the Agent for log collection in Docker environments.

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

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

The Mapreduce check does not include any events.

mapreduce.resource_manager.can_connect:
Returns CRITICAL if the Agent is unable to connect to the Resource Manager. Returns OK otherwise.

mapreduce.application_master.can_connect:
Returns CRITICAL if the Agent is unable to connect to the Application Master. Returns OK otherwise.

Need help? Contact Datadog support.

• Hadoop architectural overview
• How to monitor Hadoop metrics
• How to collect Hadoop metrics
• How to monitor Hadoop with Datadog