Package org.apache.druid.server.scheduling

Class ThresholdBasedQueryPrioritizationStrategy

java.lang.Object

org.apache.druid.server.scheduling.ThresholdBasedQueryPrioritizationStrategy

All Implemented Interfaces:

QueryPrioritizationStrategy

public class ThresholdBasedQueryPrioritizationStrategy
extends Object
implements QueryPrioritizationStrategy

Lowers query priority when any of the configured thresholds is exceeded

Constructor Summary

Constructors

Constructor	Description
ThresholdBasedQueryPrioritizationStrategy(String periodThresholdString, String durationThresholdString, Integer segmentCountThreshold, String segmentRangeThresholdString, Integer adjustment)

Method Summary

Modifier and Type	Method	Description
<T> Optional<Integer>	computePriority(QueryPlus<T> query, Set<SegmentServerSelector> segments)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ThresholdBasedQueryPrioritizationStrategy

public ThresholdBasedQueryPrioritizationStrategy(@Nullable
 String periodThresholdString,
 @Nullable
 String durationThresholdString,
 @Nullable
 Integer segmentCountThreshold,
 @Nullable
 String segmentRangeThresholdString,
 @Nullable
 Integer adjustment)

Method Details

computePriority

public <T> Optional<Integer> computePriority(QueryPlus<T> query,
 Set<SegmentServerSelector> segments)

Specified by:

computePriority in interface QueryPrioritizationStrategy