| Class | Description | 
|---|---|
| AMRMTokenSecretManager | AMRM-tokens are per ApplicationAttempt. | 
| AppPriorityACLsManager | Manager class to store and check permission for Priority ACLs. | 
| ClientToAMTokenSecretManagerInRM | |
| DelegationTokenRenewer | Service to renew application delegation tokens. | 
| NMTokenSecretManagerInRM | |
| ProxyCAManager | Manager for  ProxyCA, which contains the Certificate Authority for
 AMs to have certificates for HTTPS communication with the RM Proxy. | 
| QueueACLsManager | |
| ReservationsACLsManager | The  ReservationsACLsManageris used to check a specified user's
 permissons to perform a reservation operation on theCapacitySchedulerand theFairScheduler. | 
| RMContainerTokenSecretManager | SecretManager for ContainerTokens. | 
| RMDelegationTokenSecretManager | A ResourceManager specific delegation token secret manager. | 
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