@InterfaceAudience.Private @InterfaceStability.Unstable
| Interface | Description | 
|---|---|
| Recoverable | 
| Class | Description | 
|---|---|
| FileSystemRMStateStore | |
| LeveldbRMStateStore | Changes from 1.0 to 1.1, Addition of ReservationSystem state. | 
| MemoryRMStateStore | |
| NullRMStateStore | |
| RMStateStore | |
| RMStateStore.ProxyCAState | |
| RMStateStore.RMDTSecretManagerState | |
| RMStateStore.RMState | State of the ResourceManager | 
| RMStateStoreAMRMTokenEvent | |
| RMStateStoreAppAttemptEvent | |
| RMStateStoreAppEvent | |
| RMStateStoreEvent | |
| RMStateStoreFactory | |
| RMStateStoreProxyCAEvent | A event used to store ProxyCA information. | 
| RMStateStoreRemoveAppAttemptEvent | A event used to remove an attempt. | 
| RMStateStoreRemoveAppEvent | |
| RMStateStoreRMDTEvent | |
| RMStateStoreRMDTMasterKeyEvent | |
| RMStateStoreStoreReservationEvent | Event representing maintaining ReservationSystem state. | 
| RMStateStoreUtils | Utility methods for  RMStateStoreand subclasses. | 
| RMStateUpdateAppAttemptEvent | |
| RMStateUpdateAppEvent | |
| ZKRMStateStore | RMStateStoreimplementation backed by ZooKeeper. | 
| ZKRMStateStoreOpDurations | Class to capture the performance metrics of ZKRMStateStore. | 
| Enum | Description | 
|---|---|
| RMStateStore.RMStateStoreState | The enum defines state of RMStateStore. | 
| RMStateStoreEventType | 
| Exception | Description | 
|---|---|
| RMStateVersionIncompatibleException | This exception is thrown by ResourceManager if it's loading an incompatible
 version of storage on recovery. | 
| StoreFencedException | |
| StoreLimitException | This exception is thrown when Application Data size exceeds limit RM state
 store. | 
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