Verifying instance groups

After creating an instance group, you may want to verify that all is well with the instance group. You can also verify the resource distribution plan to check how resources are allocated to consumers associated with the instance group.

1. From the cluster management console, select Workload > Instance Groups.
   In the instance group list, you can view a summary of each instance group; for example, its state, cores and memory used.

   Note: Cores show only for services of a regular instance group, not for those running in Docker containers.
2. Click an instance group to view detailed information.
   • In the Overview tab, look for messages indicating next steps or problems with the instance group. In the Resource usage section, click the Slot-based or Multidimensional resource plan links to review consumer resource allocation. If the instance group is deployed, in the Spark deployment section, click the deployed timestamp link to check deployment details.
   • In the Services tab, review the state of the services created by the instance group. You can also review details of instances for each service.
3. If you want to modify settings for the instance group, select Configure from the Manage list.