| Package | Description | 
|---|---|
| org.apache.hadoop.fs.statistics | This package contains support for statistic collection and reporting. | 
| org.apache.hadoop.io.wrappedio | Support for dynamic access to filesystem operations which are not available
 in older hadoop releases. | 
| org.apache.hadoop.mapreduce.lib.output.committer.manifest.files | Persistence formats. | 
| Modifier and Type | Method and Description | 
|---|---|
| static IOStatisticsSnapshot | IOStatisticsSupport. snapshotIOStatistics()Create a snapshot statistics instance ready to aggregate data. | 
| static IOStatisticsSnapshot | IOStatisticsSupport. snapshotIOStatistics(IOStatistics statistics)Take a snapshot of the current statistics state. | 
| Modifier and Type | Method and Description | 
|---|---|
| static org.apache.hadoop.util.JsonSerialization<IOStatisticsSnapshot> | IOStatisticsSnapshot. serializer()Get a JSON serializer for this class. | 
| Modifier and Type | Method and Description | 
|---|---|
| static <T> T | WrappedStatistics. applyToIOStatisticsSnapshot(Serializable source,
                           org.apache.hadoop.util.functional.FunctionRaisingIOE<IOStatisticsSnapshot,T> fun)Apply a function to an object which may be an IOStatisticsSnapshot. | 
| Modifier and Type | Method and Description | 
|---|---|
| IOStatisticsSnapshot | ManifestSuccessData. getIOStatistics() | 
| Modifier and Type | Method and Description | 
|---|---|
| void | ManifestSuccessData. setIOStatistics(IOStatisticsSnapshot ioStatistics) | 
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