1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.search.stats;
import org.elasticsearch.common.collect.MapBuilder;
import org.elasticsearch.common.metrics.CounterMetric;
import org.elasticsearch.common.metrics.MeanMetric;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.index.shard.SearchOperationListener;
import org.elasticsearch.search.internal.SearchContext;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import static java.util.Collections.emptyMap;
/**
*/
public final class ShardSearchStats implements SearchOperationListener {
private final StatsHolder totalStats = new StatsHolder();
private final CounterMetric openContexts = new CounterMetric();
private volatile Map<String, StatsHolder> groupsStats = emptyMap();
/**
* Returns the stats, including group specific stats. If the groups are null/0 length, then nothing
* is returned for them. If they are set, then only groups provided will be returned, or
* <tt>_all</tt> for all groups.
*/
public SearchStats stats(String... groups) {
SearchStats.Stats total = totalStats.stats();
Map<String, SearchStats.Stats> groupsSt = null;
if (groups != null && groups.length > 0) {
groupsSt = new HashMap<>(groupsStats.size());
if (groups.length == 1 && groups[0].equals("_all")) {
for (Map.Entry<String, StatsHolder> entry : groupsStats.entrySet()) {
groupsSt.put(entry.getKey(), entry.getValue().stats());
}
} else {
for (Map.Entry<String, StatsHolder> entry : groupsStats.entrySet()) {
if (Regex.simpleMatch(groups, entry.getKey())) {
groupsSt.put(entry.getKey(), entry.getValue().stats());
}
}
}
}
return new SearchStats(total, openContexts.count(), groupsSt);
}
@Override
public void onPreQueryPhase(SearchContext searchContext) {
computeStats(searchContext, statsHolder -> {
if (searchContext.hasOnlySuggest()) {
statsHolder.suggestCurrent.inc();
} else {
statsHolder.queryCurrent.inc();
}
});
}
@Override
public void onFailedQueryPhase(SearchContext searchContext) {
computeStats(searchContext, statsHolder -> {
if (searchContext.hasOnlySuggest()) {
statsHolder.suggestCurrent.dec();
} else {
statsHolder.queryCurrent.dec();
}
});
}
@Override
public void onQueryPhase(SearchContext searchContext, long tookInNanos) {
computeStats(searchContext, statsHolder -> {
if (searchContext.hasOnlySuggest()) {
statsHolder.suggestMetric.inc(tookInNanos);
statsHolder.suggestCurrent.dec();
} else {
statsHolder.queryMetric.inc(tookInNanos);
statsHolder.queryCurrent.dec();
}
});
}
@Override
public void onPreFetchPhase(SearchContext searchContext) {
computeStats(searchContext, statsHolder -> statsHolder.fetchCurrent.inc());
}
@Override
public void onFailedFetchPhase(SearchContext searchContext) {
computeStats(searchContext, statsHolder -> statsHolder.fetchCurrent.dec());
}
@Override
public void onFetchPhase(SearchContext searchContext, long tookInNanos) {
computeStats(searchContext, statsHolder -> {
statsHolder.fetchMetric.inc(tookInNanos);
statsHolder.fetchCurrent.dec();
});
}
public void clear() {
totalStats.clear();
synchronized (this) {
if (!groupsStats.isEmpty()) {
MapBuilder<String, StatsHolder> typesStatsBuilder = MapBuilder.newMapBuilder();
for (Map.Entry<String, StatsHolder> typeStats : groupsStats.entrySet()) {
if (typeStats.getValue().totalCurrent() > 0) {
typeStats.getValue().clear();
typesStatsBuilder.put(typeStats.getKey(), typeStats.getValue());
}
}
groupsStats = typesStatsBuilder.immutableMap();
}
}
}
private void computeStats(SearchContext searchContext, Consumer<StatsHolder> consumer) {
consumer.accept(totalStats);
if (searchContext.groupStats() != null) {
for (int i = 0; i < searchContext.groupStats().size(); i++) {
consumer.accept(groupStats(searchContext.groupStats().get(i)));
}
}
}
private StatsHolder groupStats(String group) {
StatsHolder stats = groupsStats.get(group);
if (stats == null) {
synchronized (this) {
stats = groupsStats.get(group);
if (stats == null) {
stats = new StatsHolder();
groupsStats = MapBuilder.newMapBuilder(groupsStats).put(group, stats).immutableMap();
}
}
}
return stats;
}
@Override
public void onNewContext(SearchContext context) {
openContexts.inc();
}
@Override
public void onFreeContext(SearchContext context) {
openContexts.dec();
}
@Override
public void onNewScrollContext(SearchContext context) {
totalStats.scrollCurrent.inc();
}
@Override
public void onFreeScrollContext(SearchContext context) {
totalStats.scrollCurrent.dec();
totalStats.scrollMetric.inc(System.nanoTime() - context.getOriginNanoTime());
}
final static class StatsHolder {
public final MeanMetric queryMetric = new MeanMetric();
public final MeanMetric fetchMetric = new MeanMetric();
public final MeanMetric scrollMetric = new MeanMetric();
public final MeanMetric suggestMetric = new MeanMetric();
public final CounterMetric queryCurrent = new CounterMetric();
public final CounterMetric fetchCurrent = new CounterMetric();
public final CounterMetric scrollCurrent = new CounterMetric();
public final CounterMetric suggestCurrent = new CounterMetric();
public SearchStats.Stats stats() {
return new SearchStats.Stats(
queryMetric.count(), TimeUnit.NANOSECONDS.toMillis(queryMetric.sum()), queryCurrent.count(),
fetchMetric.count(), TimeUnit.NANOSECONDS.toMillis(fetchMetric.sum()), fetchCurrent.count(),
scrollMetric.count(), TimeUnit.NANOSECONDS.toMillis(scrollMetric.sum()), scrollCurrent.count(),
suggestMetric.count(), TimeUnit.NANOSECONDS.toMillis(suggestMetric.sum()), suggestCurrent.count()
);
}
public long totalCurrent() {
return queryCurrent.count() + fetchCurrent.count() + scrollCurrent.count() + suggestCurrent.count();
}
public void clear() {
queryMetric.clear();
fetchMetric.clear();
scrollMetric.clear();
suggestMetric.clear();
}
}
}
|
