| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.applicationhistoryservice | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | ApplicationHistoryStoreThis class is the abstract of the storage of the application history data. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | FileSystemApplicationHistoryStoreFile system implementation of  ApplicationHistoryStore. | 
| class  | MemoryApplicationHistoryStoreIn-memory implementation of  ApplicationHistoryStore. | 
| class  | NullApplicationHistoryStoreDummy implementation of  ApplicationHistoryStore. | 
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