org.elasticsearch.search.profile.query

Class QueryProfiler

java.lang.Object

org.elasticsearch.search.profile.AbstractProfiler<QueryProfileBreakdown,org.apache.lucene.search.Query>

org.elasticsearch.search.profile.query.QueryProfiler

public final class QueryProfiler
extends AbstractProfiler<QueryProfileBreakdown,org.apache.lucene.search.Query>

This class acts as a thread-local storage for profiling a query. It also builds a representation of the query tree which is built constructed "online" as the weights are wrapped by ContextIndexSearcher. This allows us to know the relationship between nodes in tree without explicitly walking the tree or pre-wrapping everything A Profiler is associated with every Search, not per Search-Request. E.g. a request may execute two searches (query + global agg). A Profiler just represents one of those

Field Summary

Fields inherited from class org.elasticsearch.search.profile.AbstractProfiler

profileTree

Constructor Summary

Constructors

Constructor and Description
QueryProfiler()

Method Summary

Modifier and Type	Method and Description
CollectorResult	getCollector() Return the current root Collector for this search
long	getRewriteTime()
void	setCollector(InternalProfileCollector collector) Set the collector that is associated with this profiler.
void	startRewriteTime() Begin timing the rewrite phase of a request.
long	stopAndAddRewriteTime() Stop recording the current rewrite and add it's time to the total tally, returning the cumulative time so far.

Methods inherited from class org.elasticsearch.search.profile.AbstractProfiler

getQueryBreakdown, getTree, pollLastElement

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryProfiler

public QueryProfiler()

Method Detail

setCollector

public void setCollector(InternalProfileCollector collector)

Set the collector that is associated with this profiler.

startRewriteTime

public void startRewriteTime()

Begin timing the rewrite phase of a request. All rewrites are accumulated together into a single metric

stopAndAddRewriteTime

public long stopAndAddRewriteTime()

Stop recording the current rewrite and add it's time to the total tally, returning the cumulative time so far.

Returns:

cumulative rewrite time

getRewriteTime

public long getRewriteTime()

Returns:

total time taken to rewrite all queries in this profile

getCollector

public CollectorResult getCollector()

Return the current root Collector for this search