| Package | Description | 
|---|---|
| org.apache.hadoop.hdfs.protocol | |
| org.apache.hadoop.hdfs.server.datanode | |
| org.apache.hadoop.hdfs.server.namenode | 
| Modifier and Type | Class and Description | 
|---|---|
| static class  | LayoutVersion.FeatureEnums for features that change the layout version before rolling
 upgrade is supported. | 
| Modifier and Type | Method and Description | 
|---|---|
| LayoutVersion.LayoutFeature[] | LayoutVersion.FeatureInfo. getSpecialFeatures() | 
| Constructor and Description | 
|---|
| FeatureInfo(int lv,
           int ancestorLV,
           Integer minCompatLV,
           String description,
           boolean reserved,
           LayoutVersion.LayoutFeature... specialFeatures) | 
| FeatureInfo(int lv,
           int ancestorLV,
           String description,
           boolean reserved,
           LayoutVersion.LayoutFeature... specialFeatures) | 
| Modifier and Type | Class and Description | 
|---|---|
| static class  | DataNodeLayoutVersion.FeatureEnums for features that change the layout version. | 
| Modifier and Type | Class and Description | 
|---|---|
| static class  | NameNodeLayoutVersion.FeatureEnums for features that change the layout version. | 
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