Package org.apache.druid.server.coordinator.loading

Interface LoadQueuePeon

All Known Implementing Classes:

HttpLoadQueuePeon

public interface LoadQueuePeon

Supports load queue management.

Method Summary

Modifier and Type	Method	Description
boolean	cancelOperation(DataSegment segment)	Tries to cancel the current operation queued for the given segment on this server, if any.
void	dropSegment(DataSegment segment, LoadPeonCallback callback)
CoordinatorRunStats	getAndResetStats()
long	getLoadRateKbps()
Set<SegmentHolder>	getSegmentsInQueue()
Set<DataSegment>	getSegmentsMarkedToDrop()
Set<DataSegment>	getSegmentsToDrop()
Set<DataSegment>	getSegmentsToLoad()
long	getSizeOfSegmentsToLoad()
Set<DataSegment>	getTimedOutSegments()
void	loadSegment(DataSegment segment, SegmentAction action, LoadPeonCallback callback)
void	markSegmentToDrop(DataSegment segmentToLoad)
void	start()
void	stop()
void	unmarkSegmentToDrop(DataSegment segmentToLoad)

Method Details

start

void start()

stop

void stop()

getSegmentsToLoad

Set<DataSegment> getSegmentsToLoad()

getSegmentsInQueue

Set<SegmentHolder> getSegmentsInQueue()

getSegmentsToDrop

Set<DataSegment> getSegmentsToDrop()

getTimedOutSegments

Set<DataSegment> getTimedOutSegments()

markSegmentToDrop

void markSegmentToDrop(DataSegment segmentToLoad)

unmarkSegmentToDrop

void unmarkSegmentToDrop(DataSegment segmentToLoad)

getSegmentsMarkedToDrop

Set<DataSegment> getSegmentsMarkedToDrop()

loadSegment

void loadSegment(DataSegment segment,
 SegmentAction action,
 LoadPeonCallback callback)

dropSegment

void dropSegment(DataSegment segment,
 LoadPeonCallback callback)

getSizeOfSegmentsToLoad

long getSizeOfSegmentsToLoad()

getLoadRateKbps

long getLoadRateKbps()

getAndResetStats

CoordinatorRunStats getAndResetStats()

cancelOperation

boolean cancelOperation(DataSegment segment)

Tries to cancel the current operation queued for the given segment on this server, if any. A request that has already been sent to the server cannot be cancelled.

Returns:

true if the operation was successfully cancelled