| Package | Description | 
|---|---|
| org.apache.hadoop.fs | Implementations of  AbstractFileSystemfor hdfs
    over rpc and hdfs over web. | 
| org.apache.hadoop.fs.viewfs | ViewFileSystem and ViewFileSystemOverloadScheme classes. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ContentSummaryStore the summary of a content (a directory or a file). | 
| Modifier and Type | Method and Description | 
|---|---|
| QuotaUsage | FileSystem. getQuotaUsage(Path f)Return the  QuotaUsageof a givenPath. | 
| Modifier and Type | Method and Description | 
|---|---|
| QuotaUsage | ViewFileSystem. getQuotaUsage(Path f) | 
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