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 and Description
ThresholdBasedQueryPrioritizationStrategy(String periodThresholdString, String durationThresholdString, Integer segmentCountThreshold, Integer adjustment)

Method Summary

Modifier and Type	Method and 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 Detail

ThresholdBasedQueryPrioritizationStrategy

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

Method Detail

computePriority

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

Specified by:

computePriority in interface QueryPrioritizationStrategy