• MapReduce Service

mrs
  1. Help Center
  2. MapReduce Service
  3. User Guide
  4. MRS Manager Operation Guide
  5. Health Check Management
  6. Performing a Health Check

Performing a Health Check

Scenario

To ensure that cluster parameters, configurations, and monitoring are correct and that the cluster can run stably for a long time, you can perform a health check during routine maintenance.

NOTE:

A system health check includes MRS Manager, service-level, and host-level health checks:

  • MRS Manager health checks focus on whether the unified management platform can provide management functions.
  • Service-level health checks focus on whether components can provide services properly.
  • Host-level health checks focus on whether host indicators are normal.

The system health check has three types of check items: Health Status, related alarms, and customized monitoring indicators for each check object. The health check results are not always the same as the Health Status on the portal.

Procedure

  • Manually perform the health check for all services.
    1. On MRS Manager, click Service.
    2. Choose More > Start Cluster Health Check to start the health check for all services.
    NOTE:
    • The cluster health checks include MRS Manager, service, and host status checks.
    • To perform cluster health checks, you can also choose System > Check Health Status > Start Cluster Health Check on MRS Manager.
    • To export the health check result, click Export Report in the upper left corner.
  • Manually perform the health check for a service.
    1. On MRS Manager, click Service, and click the target service in the service list.
    2. Choose More > Start Service Health Check to start the health check for a specified service.
  • Manually perform the health check for a host.
    1. On MRS Manager, click Host.
    2. Select the check box of the target host.
    3. Choose More > Start Host Health Check to start the health check for the host.
  • Perform an automatic health check.
    1. On MRS Manager, click System.
    2. Under Maintenance, click Check Health Status.
    3. Click Configure Health Check to configure automatic health check items.

      Periodic Health Check indicates whether to enable the automatic health check function. The switch of the Periodic Health Check is disabled by default. Click the switch to enable the function. Select Daily, Weekly, or Monthly as required.

      Click OK to save the configuration. The Health check configuration saved successfully is displayed in the upper-right corner.