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
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Field Summary
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Constructor Summary
Constructors Constructor Description QueryProfiler()
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Method Summary
Modifier and Type Method Description CollectorResult
getCollector()
Return the current root Collector for this searchlong
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
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Constructor Details
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QueryProfiler
public QueryProfiler()
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Method Details
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setCollector
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
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getRewriteTime
public long getRewriteTime()- Returns:
- total time taken to rewrite all queries in this profile
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getCollector
Return the current root Collector for this search
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