org.apache.druid.server.coordinator.duty

Interface CompactionSegmentIterator

All Superinterfaces:

Iterator<List<DataSegment>>

All Known Implementing Classes:

NewestSegmentFirstIterator

public interface CompactionSegmentIterator
extends Iterator<List<DataSegment>>

Segments in the lists which are the elements of this iterator are sorted according to the natural segment order (see DataSegment.compareTo(org.apache.druid.timeline.DataSegment)).

Method Summary

Modifier and Type	Method and Description
Map<String,CompactionStatistics>	totalCompactedStatistics() Return a map of dataSourceName to CompactionStatistics.
Map<String,CompactionStatistics>	totalSkippedStatistics() Return a map of dataSourceName to CompactionStatistics.

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next, remove

Method Detail

totalCompactedStatistics

Map<String,CompactionStatistics> totalCompactedStatistics()

Return a map of dataSourceName to CompactionStatistics. This method returns the aggregated statistics of segments that was already compacted and does not need to be compacted again. Hence, segment that were not returned by the Iterator.next() becuase it does not needs compaction. Note that the aggregations returned by this method is only up to the current point of the iterator being iterated.

totalSkippedStatistics

Map<String,CompactionStatistics> totalSkippedStatistics()

Return a map of dataSourceName to CompactionStatistics. This method returns the aggregated statistics of segments that was skipped as it cannot be compacted. Hence, segment that were not returned by the Iterator.next() becuase it cannot be compacted. Note that the aggregations returned by this method is only up to the current point of the iterator being iterated.