Enabling the OpsCenter Performance Service 

Enable the OpsCenter Performance Service. Enabling each performance object also enables its default configuration.

Enable the OpsCenter Performance Service. Enabling each performance object also enables its default configuration. Disabling the OpsCenter Performance Service is recommended during peak production time.
Note: The Slow Query Log is enabled by default in the OpsCenter Performance Service for DSE versions 4.8 and later based on the default settings in DataStax Enterprise.

Prerequisites

When the OpsCenter Performance Service is enabled, OpsCenter programmatically sets a value in dse.yaml, which causes the file to lose comments and formatting. If there are comments and formatting you want to retain or refer to later, back up the dse.yaml for safekeeping.
Important: If a cluster is being managed within Lifecycle Manager, OpsCenter does not automatically modify dse.yaml for the Performance Service. You must manually update the associated settings in the configuration profile for the cluster in Lifecycle Manager.

Procedure

  1. Click cluster name > Services.
  2. Click the Configure or Details link as appropriate for the Performance Service.
    The Overview page prompts you to enable metrics.

  3. Click the Enable metrics link to view performance data.
    The Settings tab appears where you can enable and configure the Performance objects.

  4. Click the buttons in the Status column to On for the performance objects you want to enable.
    The performance objects can be turned on and used independently. Turning on a performance service object enables the associated settings in the dse.yaml file.
    A dialog prompts you to confirm. Toggling from off to on pushes changes to dse.yaml on every node, which overwrites any comments or formatting in the dse.yaml file. To retain your original dse.yaml, make a backup of the file as mentioned in the above prerequisite.

    Confirm enabling a Performance Service feature

  5. Click Change to proceed.
    No further configuration is required; however, you can adjust the default configuration parameters: