/
HBaseTimelineMetricsService.java
565 lines (483 loc) · 22.7 KB
/
HBaseTimelineMetricsService.java
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
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.apache.ambari.metrics.core.timeline;
import static org.apache.ambari.metrics.core.timeline.TimelineMetricConfiguration.USE_GROUPBY_AGGREGATOR_QUERIES;
import static org.apache.ambari.metrics.core.timeline.availability.AggregationTaskRunner.ACTUAL_AGGREGATOR_NAMES;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.UnknownHostException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import org.apache.ambari.metrics.core.timeline.aggregators.Function;
import org.apache.ambari.metrics.core.timeline.aggregators.TimelineMetricAggregator;
import org.apache.ambari.metrics.core.timeline.aggregators.TimelineMetricAggregatorFactory;
import org.apache.ambari.metrics.core.timeline.availability.MetricCollectorHAController;
import org.apache.ambari.metrics.core.timeline.discovery.TimelineMetricHostMetadata;
import org.apache.ambari.metrics.core.timeline.discovery.TimelineMetricMetadataManager;
import org.apache.ambari.metrics.core.timeline.function.SeriesAggregateFunction;
import org.apache.ambari.metrics.core.timeline.function.TimelineMetricsSeriesAggregateFunction;
import org.apache.ambari.metrics.core.timeline.function.TimelineMetricsSeriesAggregateFunctionFactory;
import org.apache.ambari.metrics.core.timeline.query.Condition;
import org.apache.ambari.metrics.core.timeline.query.ConditionBuilder;
import org.apache.ambari.metrics.core.timeline.query.PhoenixTransactSQL;
import org.apache.ambari.metrics.core.timeline.query.TopNCondition;
import org.apache.commons.collections.MapUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.metrics2.sink.timeline.AggregationResult;
import org.apache.hadoop.metrics2.sink.timeline.ContainerMetric;
import org.apache.hadoop.metrics2.sink.timeline.MetricHostAggregate;
import org.apache.hadoop.metrics2.sink.timeline.Precision;
import org.apache.hadoop.metrics2.sink.timeline.TimelineMetric;
import org.apache.hadoop.metrics2.sink.timeline.TimelineMetricMetadata;
import org.apache.hadoop.metrics2.sink.timeline.TimelineMetricWithAggregatedValues;
import org.apache.hadoop.metrics2.sink.timeline.TimelineMetrics;
import org.apache.hadoop.metrics2.sink.timeline.TopNConfig;
import org.apache.hadoop.service.AbstractService;
import org.apache.hadoop.yarn.api.records.timeline.TimelinePutResponse;
import org.apache.ambari.metrics.core.timeline.availability.AggregationTaskRunner.AGGREGATOR_NAME;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Multimap;
public class HBaseTimelineMetricsService extends AbstractService implements TimelineMetricStore {
static final Log LOG = LogFactory.getLog(HBaseTimelineMetricsService.class);
private final TimelineMetricConfiguration configuration;
private TimelineMetricDistributedCache cache;
private PhoenixHBaseAccessor hBaseAccessor;
private static volatile boolean isInitialized = false;
private final ScheduledExecutorService watchdogExecutorService = Executors.newSingleThreadScheduledExecutor();
private final Map<AGGREGATOR_NAME, ScheduledExecutorService> scheduledExecutors = new HashMap<>();
private TimelineMetricMetadataManager metricMetadataManager;
private MetricCollectorHAController haController;
private boolean containerMetricsDisabled = false;
/**
* Construct the service.
*/
public HBaseTimelineMetricsService(TimelineMetricConfiguration configuration) {
super(HBaseTimelineMetricsService.class.getName());
this.configuration = configuration;
}
@Override
protected void serviceInit(Configuration conf) throws Exception {
super.serviceInit(conf);
initializeSubsystem();
}
private TimelineMetricDistributedCache startCacheNode() throws MalformedURLException, URISyntaxException {
//TODO make configurable
return new TimelineMetricsIgniteCache(metricMetadataManager);
}
private synchronized void initializeSubsystem() {
if (!isInitialized) {
hBaseAccessor = new PhoenixHBaseAccessor(null);
// Initialize metadata
try {
metricMetadataManager = new TimelineMetricMetadataManager(hBaseAccessor);
} catch (MalformedURLException | URISyntaxException e) {
throw new ExceptionInInitializerError("Unable to initialize metadata manager");
}
metricMetadataManager.initializeMetadata();
// Initialize metric schema
hBaseAccessor.initMetricSchema();
// Initialize policies before TTL update
hBaseAccessor.initPoliciesAndTTL();
// Start HA service
// Start the controller
if (!configuration.isDistributedCollectorModeDisabled()) {
haController = new MetricCollectorHAController(configuration);
try {
haController.initializeHAController();
} catch (Exception e) {
LOG.error(e);
throw new MetricsSystemInitializationException("Unable to " +
"initialize HA controller", e);
}
} else {
LOG.info("Distributed collector mode disabled");
}
//Initialize whitelisting & blacklisting if needed
TimelineMetricsFilter.initializeMetricFilter(configuration);
Configuration metricsConf = null;
try {
metricsConf = configuration.getMetricsConf();
} catch (Exception e) {
throw new ExceptionInInitializerError("Cannot initialize configuration.");
}
if (configuration.isCollectorInMemoryAggregationEnabled()) {
try {
cache = startCacheNode();
} catch (Exception e) {
throw new MetricsSystemInitializationException("Unable to " +
"start cache node", e);
}
}
if (Boolean.parseBoolean(metricsConf.get(USE_GROUPBY_AGGREGATOR_QUERIES, "true"))) {
LOG.info("Using group by aggregators for aggregating host and cluster metrics.");
}
// Start the cluster aggregator second
TimelineMetricAggregator secondClusterAggregator =
TimelineMetricAggregatorFactory.createTimelineClusterAggregatorSecond(
hBaseAccessor, metricsConf, metricMetadataManager, haController, cache);
scheduleAggregatorThread(secondClusterAggregator);
// Start the minute cluster aggregator
TimelineMetricAggregator minuteClusterAggregator =
TimelineMetricAggregatorFactory.createTimelineClusterAggregatorMinute(
hBaseAccessor, metricsConf, metricMetadataManager, haController);
scheduleAggregatorThread(minuteClusterAggregator);
// Start the hourly cluster aggregator
TimelineMetricAggregator hourlyClusterAggregator =
TimelineMetricAggregatorFactory.createTimelineClusterAggregatorHourly(
hBaseAccessor, metricsConf, metricMetadataManager, haController);
scheduleAggregatorThread(hourlyClusterAggregator);
// Start the daily cluster aggregator
TimelineMetricAggregator dailyClusterAggregator =
TimelineMetricAggregatorFactory.createTimelineClusterAggregatorDaily(
hBaseAccessor, metricsConf, metricMetadataManager, haController);
scheduleAggregatorThread(dailyClusterAggregator);
// Start the minute host aggregator
if (!configuration.isHostInMemoryAggregationEnabled()) {
TimelineMetricAggregator minuteHostAggregator =
TimelineMetricAggregatorFactory.createTimelineMetricAggregatorMinute(
hBaseAccessor, metricsConf, metricMetadataManager, haController);
scheduleAggregatorThread(minuteHostAggregator);
}
// Start the hourly host aggregator
TimelineMetricAggregator hourlyHostAggregator =
TimelineMetricAggregatorFactory.createTimelineMetricAggregatorHourly(
hBaseAccessor, metricsConf, metricMetadataManager, haController);
scheduleAggregatorThread(hourlyHostAggregator);
// Start the daily host aggregator
TimelineMetricAggregator dailyHostAggregator =
TimelineMetricAggregatorFactory.createTimelineMetricAggregatorDaily(
hBaseAccessor, metricsConf, metricMetadataManager, haController);
scheduleAggregatorThread(dailyHostAggregator);
if (!configuration.isTimelineMetricsServiceWatcherDisabled()) {
int initDelay = configuration.getTimelineMetricsServiceWatcherInitDelay();
int delay = configuration.getTimelineMetricsServiceWatcherDelay();
// Start the watchdog
watchdogExecutorService.scheduleWithFixedDelay(
new TimelineMetricStoreWatcher(this, configuration),
initDelay, delay, TimeUnit.SECONDS);
LOG.info("Started watchdog for timeline metrics store with initial " +
"delay = " + initDelay + ", delay = " + delay);
}
containerMetricsDisabled = configuration.isContainerMetricsDisabled();
isInitialized = true;
}
}
@Override
protected void serviceStop() throws Exception {
super.serviceStop();
}
@Override
public TimelineMetrics getTimelineMetrics(List<String> metricNames,
List<String> hostnames, String applicationId, String instanceId,
Long startTime, Long endTime, Precision precision, Integer limit,
boolean groupedByHosts, TopNConfig topNConfig, String seriesAggregateFunction) throws SQLException, IOException {
if (metricNames == null || metricNames.isEmpty()) {
throw new IllegalArgumentException("No metric name filter specified.");
}
if ((startTime == null && endTime != null)
|| (startTime != null && endTime == null)) {
throw new IllegalArgumentException("Open ended query not supported ");
}
if (limit != null && limit > PhoenixHBaseAccessor.RESULTSET_LIMIT) {
throw new IllegalArgumentException("Limit too big");
}
TimelineMetricsSeriesAggregateFunction seriesAggrFunctionInstance = null;
if (!StringUtils.isEmpty(seriesAggregateFunction)) {
SeriesAggregateFunction func = SeriesAggregateFunction.getFunction(seriesAggregateFunction);
seriesAggrFunctionInstance = TimelineMetricsSeriesAggregateFunctionFactory.newInstance(func);
}
Multimap<String, List<Function>> metricFunctions =
parseMetricNamesToAggregationFunctions(metricNames);
TimelineMetrics metrics = new TimelineMetrics();
List<String> transientMetricNames = new ArrayList<>();
List<byte[]> uuids = metricMetadataManager.getUuidsForGetMetricQuery(metricFunctions.keySet(),
hostnames,
applicationId,
instanceId,
transientMetricNames);
if (uuids.isEmpty() && transientMetricNames.isEmpty()) {
LOG.trace("No metrics satisfy the query: " + Arrays.asList(metricNames).toString());
return metrics;
}
ConditionBuilder conditionBuilder = new ConditionBuilder(new ArrayList<String>(metricFunctions.keySet()))
.hostnames(hostnames)
.appId(applicationId)
.instanceId(instanceId)
.startTime(startTime)
.endTime(endTime)
.precision(precision)
.limit(limit)
.grouped(groupedByHosts)
.uuid(uuids)
.transientMetricNames(transientMetricNames);
applyTopNCondition(conditionBuilder, topNConfig, metricNames, hostnames);
Condition condition = conditionBuilder.build();
if (hostnames == null || hostnames.isEmpty()) {
metrics = hBaseAccessor.getAggregateMetricRecords(condition, metricFunctions);
} else {
metrics = hBaseAccessor.getMetricRecords(condition, metricFunctions);
}
metrics = postProcessMetrics(metrics);
if (metrics.getMetrics().size() == 0) {
return metrics;
}
return seriesAggregateMetrics(seriesAggrFunctionInstance, metrics);
}
private void applyTopNCondition(ConditionBuilder conditionBuilder,
TopNConfig topNConfig,
List<String> metricNames,
List<String> hostnames) {
if (topNConfig != null) {
if (TopNCondition.isTopNHostCondition(metricNames, hostnames) ^ //Only 1 condition should be true.
TopNCondition.isTopNMetricCondition(metricNames, hostnames)) {
conditionBuilder.topN(topNConfig.getTopN());
conditionBuilder.isBottomN(topNConfig.getIsBottomN());
Function.ReadFunction readFunction = Function.ReadFunction.getFunction(topNConfig.getTopNFunction());
Function function = new Function(readFunction, null);
conditionBuilder.topNFunction(function);
} else {
LOG.debug("Invalid Input for TopN query. Ignoring TopN Request.");
}
}
}
private TimelineMetrics postProcessMetrics(TimelineMetrics metrics) {
List<TimelineMetric> metricsList = metrics.getMetrics();
for (TimelineMetric metric : metricsList) {
String name = metric.getMetricName();
if (name.contains("._rate")) {
updateValuesAsRate(metric.getMetricValues(), false);
} else if (name.contains("._diff")) {
updateValuesAsRate(metric.getMetricValues(), true);
}
}
return metrics;
}
private TimelineMetrics seriesAggregateMetrics(TimelineMetricsSeriesAggregateFunction seriesAggrFuncInstance,
TimelineMetrics metrics) {
if (seriesAggrFuncInstance != null) {
TimelineMetric appliedMetric = seriesAggrFuncInstance.apply(metrics);
metrics.setMetrics(Collections.singletonList(appliedMetric));
}
return metrics;
}
static Map<Long, Double> updateValuesAsRate(Map<Long, Double> metricValues, boolean isDiff) {
Long prevTime = null;
Double prevVal = null;
long step;
Double diff;
for (Iterator<Map.Entry<Long, Double>> it = metricValues.entrySet().iterator(); it.hasNext(); ) {
Map.Entry<Long, Double> timeValueEntry = it.next();
Long currTime = timeValueEntry.getKey();
Double currVal = timeValueEntry.getValue();
if (prevTime != null) {
step = currTime - prevTime;
diff = currVal - prevVal;
if (diff < 0) {
it.remove(); //Discard calculating rate when the metric counter has been reset.
} else {
Double rate = isDiff ? diff : (diff / TimeUnit.MILLISECONDS.toSeconds(step));
timeValueEntry.setValue(rate);
}
} else {
it.remove();
}
prevTime = currTime;
prevVal = currVal;
}
return metricValues;
}
static Multimap<String, List<Function>> parseMetricNamesToAggregationFunctions(List<String> metricNames) {
Multimap<String, List<Function>> metricsFunctions = ArrayListMultimap.create();
for (String metricName : metricNames) {
Function function = Function.DEFAULT_VALUE_FUNCTION;
String cleanMetricName = metricName;
try {
function = Function.fromMetricName(metricName);
int functionStartIndex = metricName.indexOf("._");
if (functionStartIndex > 0) {
cleanMetricName = metricName.substring(0, functionStartIndex);
}
} catch (Function.FunctionFormatException ffe) {
// unknown function so
// fallback to VALUE, and fullMetricName
}
List<Function> functionsList = new ArrayList<>();
functionsList.add(function);
metricsFunctions.put(cleanMetricName, functionsList);
}
return metricsFunctions;
}
public void putMetricsSkipCache(TimelineMetrics metrics) throws SQLException, IOException {
hBaseAccessor.insertMetricRecordsWithMetadata(metricMetadataManager, metrics, true);
}
@Override
public TimelinePutResponse putMetrics(TimelineMetrics metrics) throws SQLException, IOException {
// Error indicated by the Sql exception
TimelinePutResponse response = new TimelinePutResponse();
hBaseAccessor.insertMetricRecordsWithMetadata(metricMetadataManager, metrics, false);
if (configuration.isCollectorInMemoryAggregationEnabled()) {
cache.putMetrics(metrics.getMetrics());
}
return response;
}
@Override
public TimelinePutResponse putContainerMetrics(List<ContainerMetric> metrics)
throws SQLException, IOException {
if (containerMetricsDisabled) {
LOG.debug("Ignoring submitted container metrics according to configuration. Values will not be stored.");
return new TimelinePutResponse();
}
hBaseAccessor.insertContainerMetrics(metrics);
return new TimelinePutResponse();
}
@Override
public Map<String, List<TimelineMetricMetadata>> getTimelineMetricMetadata(String appId, String metricPattern,
boolean includeBlacklistedMetrics) throws SQLException, IOException {
return metricMetadataManager.getTimelineMetricMetadataByAppId(appId, metricPattern, includeBlacklistedMetrics);
}
@Override
public byte[] getUuid(String metricName, String appId, String instanceId, String hostname) throws SQLException, IOException {
return metricMetadataManager.getUuid(metricName, appId, instanceId, hostname, false);
}
@Override
public Map<String, Set<String>> getHostAppsMetadata() throws SQLException, IOException {
Map<String, TimelineMetricHostMetadata> hostsMetadata = metricMetadataManager.getHostedAppsCache();
Map<String, Set<String>> hostAppMap = new HashMap<>();
for (String hostname : hostsMetadata.keySet()) {
hostAppMap.put(hostname, hostsMetadata.get(hostname).getHostedApps().keySet());
}
return hostAppMap;
}
@Override
public TimelinePutResponse putHostAggregatedMetrics(AggregationResult aggregationResult) throws SQLException, IOException {
Map<TimelineMetric, MetricHostAggregate> aggregateMap = new HashMap<>();
String hostname = null;
for (TimelineMetricWithAggregatedValues entry : aggregationResult.getResult()) {
aggregateMap.put(entry.getTimelineMetric(), entry.getMetricAggregate());
hostname = hostname == null ? entry.getTimelineMetric().getHostName() : hostname;
}
long timestamp = aggregationResult.getTimeInMilis();
if (LOG.isDebugEnabled()) {
LOG.debug(String.format("Adding host %s to aggregated by in-memory aggregator. Timestamp : %s", hostname, timestamp));
}
hBaseAccessor.saveHostAggregateRecords(aggregateMap, PhoenixTransactSQL.METRICS_AGGREGATE_MINUTE_TABLE_NAME);
return new TimelinePutResponse();
}
@Override
public Map<String, Map<String, Set<String>>> getInstanceHostsMetadata(String instanceId, String appId)
throws SQLException, IOException {
Map<String, TimelineMetricHostMetadata> hostedApps = metricMetadataManager.getHostedAppsCache();
Map<String, Set<String>> instanceHosts = new HashMap<>();
if (configuration.getTimelineMetricsMultipleClusterSupport()) {
instanceHosts = metricMetadataManager.getHostedInstanceCache();
}
Map<String, Map<String, Set<String>>> instanceAppHosts = new HashMap<>();
if (MapUtils.isEmpty(instanceHosts)) {
Map<String, Set<String>> appHostMap = new HashMap<String, Set<String>>();
for (String host : hostedApps.keySet()) {
for (String app : hostedApps.get(host).getHostedApps().keySet()) {
if (!appHostMap.containsKey(app)) {
appHostMap.put(app, new HashSet<String>());
}
appHostMap.get(app).add(host);
}
}
instanceAppHosts.put("", appHostMap);
} else {
for (String instance : instanceHosts.keySet()) {
if (StringUtils.isNotEmpty(instanceId) && !instance.equals(instanceId)) {
continue;
}
Map<String, Set<String>> appHostMap = new HashMap<String, Set<String>>();
instanceAppHosts.put(instance, appHostMap);
Set<String> hostsWithInstance = instanceHosts.get(instance);
for (String host : hostsWithInstance) {
for (String app : hostedApps.get(host).getHostedApps().keySet()) {
if (StringUtils.isNotEmpty(appId) && !app.equals(appId)) {
continue;
}
if (!appHostMap.containsKey(app)) {
appHostMap.put(app, new HashSet<String>());
}
appHostMap.get(app).add(host);
}
}
}
}
return instanceAppHosts;
}
@Override
public List<String> getLiveInstances() {
List<String> instances = null;
try {
if (haController == null) {
// Always return current host as live (embedded operation mode)
return Collections.singletonList(configuration.getInstanceHostnameFromEnv());
}
instances = haController.getLiveInstanceHostNames();
if (instances == null || instances.isEmpty()) {
// fallback
instances = Collections.singletonList(configuration.getInstanceHostnameFromEnv());
}
} catch (UnknownHostException e) {
LOG.debug("Exception on getting hostname from env.", e);
}
return instances;
}
@Override
public TimelineMetricServiceSummary getTimelineMetricServiceSummary() {
return new TimelineMetricServiceSummary(metricMetadataManager, haController);
}
private void scheduleAggregatorThread(final TimelineMetricAggregator aggregator) {
if (!aggregator.isDisabled()) {
ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor(
new ThreadFactory() {
@Override
public Thread newThread(Runnable r) {
return new Thread(r, ACTUAL_AGGREGATOR_NAMES.get(aggregator.getName()));
}
}
);
scheduledExecutors.put(aggregator.getName(), executorService);
executorService.scheduleAtFixedRate(aggregator,
0l,
aggregator.getSleepIntervalMillis(),
TimeUnit.MILLISECONDS);
LOG.info("Scheduled aggregator thread " + aggregator.getName() + " every " +
+ aggregator.getSleepIntervalMillis() + " milliseconds.");
} else {
LOG.info("Skipped scheduling " + aggregator.getName() + " since it is disabled.");
}
}
}