Cluster resource management

The Resource Management page provides the Resource Usage and Unit Distribution tabs. The Resource Usage tab displays the resource usage trends of the cluster. The Unit Distribution tab displays the physical distribution and resource usage of each tenant in the cluster.

In the left-side navigation pane, click Clusters . The Cluster Overview page appears. In the Clusters list, find the target cluster and click its name. The cluster details page appears. In the left-side navigation pane, click Resource Management . The Resource Management page appears.

Unit distribution

You can click the Unit Distribution tab to view the distribution of resource units.

• Click Tenants in the upper-right corner of the tab to select a tenant.

• Click Region in the upper-right corner of the tab to select the physical region where the current cluster is located.

• Click Zone in the upper-right corner of the tab to select Zone1, Zone2, or Zone3.

• Click Host Type in the upper-right corner of the tab to select the host type.

• Click the icon of refresh to get the latest monitoring of the unit distribution.

  • Check load balancing of the cluster:

    You can view the values of Allocated Memory , Allocated CPU , and Used Disks of each zone to check whether the usage of the same type of resource is balanced across the servers in the zone. If not, you can modify the load balancing parameters of the OceanBase cluster to implement load balancing.

  • Evaluate whether the cluster needs to scale out:

    You may consider a cluster scale-out when the value of Used Disks reaches 80%.

  • View the resource distribution of a tenant:

    You can click Tenants in the upper-right corner of the tab, select the target tenant from the drop-down list, and then click OK to view the resource distribution of the tenant.

  • Manually implement load balancing:

    If the built-in load balancing algorithms of the OceanBase cluster cannot meet your needs, you can double-click a unit specification next to the tenant to manually migrate resources, but only within a single zone.

  Note

  We recommend that you disable the automatic load balancing feature of the OceanBase cluster before you manually implement load balancing, because the feature may migrate the unit back to the original locality.

  

  Note

  The Number of Units row displays the number of units in the cluster. If the number of units is greater than the number of tenants, units that are not associated with a tenant exist. You can delete or compact the units that have been idle for more than one hour.

Resource usage

In the Resource Usage Tendency section, you can view the Disk, Replicas, CPU , and Memory trend charts. The CPUs and memory trend charts display the trend of resource allocation, and the disk and partitions trend charts display the trend of resource usage. You can move the pointer over a resource change point in time on the CPU utilization or memory usage curve, to view the resource change event of the current point in time of resource allocation relative to the previous point in time of resource allocation. The event information is generated based on the value differences between the two resource allocations and may not include all associated events.

• Click All in the upper-right corner, you can select All , zone1 , zone2 , or zone3 from the drop-down list to view the resource usage trends of different scope.

• Click Last 7 Days in the upper-right corner, you can choose Last 7 Days, Last 1 Month, Last 6 Months, or Last 1 Year to view the resource usage trends in different time periods.

• Click Percentage or Absolute Value to switch the mode of the trend charts.

• Click the filter icon of each trend chart to view the resource usage of different zones.

The table in the Allocated Resources section contains the following columns: Tenant Name, Disk Usage, Replicas, Allocated CPU (Core) , and Allocated Memory (G) . Click the name of a tenant to go to the corresponding tenant overview page.