Configuring Storm Configure Basic Storm Parameters The following configurations are required before you start using Storm. If you installed Storm using the MapR Installer, the following configurations are set automatically. Configure Kerberos for Storm As of Storm 0.10.0-1602, you can configure Storm to use Kerberos authentication on a secure cluster. Configure SSL for the Storm UI As of Storm 0.10.0-1602, you can configure SSL for the Storm UI on a secure or unsecure cluster. Configure User Impersonation and Isolation for Storm As of Storm 0.10.0-1602, you can configure user impersonation and isolation on a secure cluster that uses Kerberos authentication. Configure user impersonation for Storm when you want the mapr user to submit jobs on behalf of another user. After you enable user impersonation for Storm, you can also configure isolation to submit a job as a user other than the mapr user. Configure Multi-tenant Scheduler As of Storm 0.10.0-1602, you can configure Storm to use a multi-tenant scheduler. Configure a multi-tenant scheduler when you want to isolate topologies from one another.The multi-tenant scheduler also provides the ability to limit the total resources that user can consume in the cluster.