Package com.yahoo.vespa.model.content

Class DispatchTuning

java.lang.Object

com.yahoo.vespa.model.content.DispatchTuning

public class DispatchTuning
extends Object

Tuning of dispatching to content nodes, see the dispatch tuning documentation.

Author:

Simon Thoresen Hult, bratseth

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DispatchTuning.Builder
static enum	DispatchTuning.DispatchPolicy

Field Summary

Fields

Modifier and Type	Field	Description
static final DispatchTuning	empty

Method Summary

Modifier and Type	Method	Description
DispatchTuning.DispatchPolicy	getDispatchPolicy()	Returns the policy used to select which group to dispatch a query to
Integer	getMaxHitsPerPartition()	Returns the max number of hits to fetch from each partition, or null to fetch all
Double	getMinActiveDocsCoverage()	Returns the percentage of documents which must be available in a group for that group to receive queries
Boolean	getPrioritizeAvailability()	Returns true if we should dispatch to groups within MinActiveDocsCoverage of the *median* document count of other groups (default), or false to only dispatch to those within MinActiveDocsCoverage of the *max* document count.
Double	getTopkProbability()

Methods inherited from class java.lang.Object

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

Field Details

empty

public static final DispatchTuning empty

Method Details

getMaxHitsPerPartition

public Integer getMaxHitsPerPartition()

Returns the max number of hits to fetch from each partition, or null to fetch all

getDispatchPolicy

public DispatchTuning.DispatchPolicy getDispatchPolicy()

Returns the policy used to select which group to dispatch a query to

getPrioritizeAvailability

public Boolean getPrioritizeAvailability()

Returns true if we should dispatch to groups within MinActiveDocsCoverage of the *median* document count of other groups (default), or false to only dispatch to those within MinActiveDocsCoverage of the *max* document count.

getMinActiveDocsCoverage

public Double getMinActiveDocsCoverage()

Returns the percentage of documents which must be available in a group for that group to receive queries

getTopkProbability

public Double getTopkProbability()