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.

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 includes 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.

  On the MRS details page, choose Management Operations > Start Cluster Health Check.

  

  For the operations on MRS Manager, see Performing a Health Check; for the operations on FusionInsight Manager of MRS 3.x or later, see Overview.

  • The cluster health check includes 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 the MRS cluster details page, click Components.
  2. Select the target service from the service list.
  3. Choose More > Start Service Health Check to start the health check for the service.
• Manually perform the health check for a host.
  1. On the MRS details page, click Nodes.
  2. Expand the node group information and select the check box of the host to be checked.
  3. Choose Node > Start Host Health Check to start the health check for the host.