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 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.
Note
For the operations on MRS Manager of MRS 1.7.2 or earlier, 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.
On the MRS cluster details page, click Components.
Note
For versions earlier than MRS 1.7.2, see Performing a Health Check.
Select the target service from the service list.
Choose More > Start Service Health Check to start the health check for the service.
Manually perform the health check for a host.
On the MRS details page, click Nodes.
Note
For MRS 1.7.2 or earlier, see Performing a Health Check. For MRS 3.x or later, see Perform a Health Check.
Expand the node group information and select the check box of the host to be checked.
Choose Node > Start Host Health Check to start the health check for the host.