Overview

This check monitors Red Hat Gluster Storage cluster health, volume, and brick status through the Datadog Agent. This GlusterFS integration is compatible with both Red Hat vendored and open-source versions of GlusterFS.

Setup

Follow the instructions below to install and configure this check for an Agent running on a host. For containerized environments, see the Autodiscovery Integration Templates for guidance on applying these instructions.

Installation

The GlusterFS check is included in the Datadog Agent package. No additional installation is needed on your server.

Configuration

1. Edit the glusterfs.d/conf.yaml file, in the conf.d/ folder at the root of your Agent’s configuration directory to start collecting your GlusterFS performance data. See the sample glusterfs.d/conf.yaml for all available configuration options.

   init_config:
   
    ## @param gstatus_path - string - optional - default: /opt/datadog-agent/embedded/sbin/gstatus
    ## Path to the gstatus command.
    ##
    ## A version of the gstatus is shipped with the Agent binary.
    ## If you are using a source install, specify the location of gstatus.
    #
    # gstatus_path: /opt/datadog-agent/embedded/sbin/gstatus
   
    instances:
      -
        ## @param min_collection_interval - number - optional - default: 60
        ## The GlusterFS integration collects cluster-wide metrics which can put additional workload on the server.
        ## Increase the collection interval to reduce the frequency.
        ##
        ## This changes the collection interval of the check. For more information, see:
        ## https://docs.datadoghq.com/developers/write_agent_check/#collection-interval
        #
        min_collection_interval: 60
   

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   NOTE: By default, gstatus internally calls the gluster command which requires running as superuser. Add a line like the following to your sudoers file:

    dd-agent ALL=(ALL) NOPASSWD:/path/to/your/gstatus
   

   If your GlusterFS environment does not require root, set use_sudo configuration option to false.

2. Restart the Agent.

Log collection

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

   logs_enabled: true
   

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2. Edit this configuration block in your glusterfs.d/conf.yaml file to start collecting your GlusterFS logs:

   logs:
     - type: file
       path: /var/log/glusterfs/glusterd.log
       source: glusterfs
     - type: file
       path: /var/log/glusterfs/cli.log
       source: glusterfs
   

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Change the path parameter value based on your environment. See the sample conf.yaml for all available configuration options.

3. Restart the Agent.

For information on configuring the Agent for log collection in Kubernetes environments, see Kubernetes Log Collection.

Validation

Run the Agent’s status subcommand and look for glusterfs under the Checks section.

Data Collected

Metrics

Events

GlusterFS does not include any events.

Service Checks

glusterfs.brick.health
Returns CRITICAL if the sub volume is ‘degraded’. Returns OK if ‘up’.
Statuses: ok, critical, warning

glusterfs.volume.health
Returns CRITICAL if the volume is ‘degraded’. Returns OK if ‘up’.
Statuses: ok, critical, warning

glusterfs.cluster.health
Returns CRITICAL if the volume is ‘degraded’. Returns OK otherwise.
Statuses: ok, critical, warning

Troubleshooting

Need help? Contact Datadog support.