/
SmtpMailer.java
698 lines (549 loc) · 30.5 KB
/
SmtpMailer.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
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
package com.hubspot.singularity.smtp;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.lang3.time.DateFormatUtils;
import org.apache.commons.lang3.time.DurationFormatUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Joiner;
import com.google.common.base.Optional;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableMap.Builder;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.inject.Inject;
import com.google.inject.name.Named;
import com.hubspot.mesos.JavaUtils;
import com.hubspot.singularity.ExtendedTaskState;
import com.hubspot.singularity.RequestType;
import com.hubspot.singularity.SingularityDisastersData;
import com.hubspot.singularity.SingularityEmailDestination;
import com.hubspot.singularity.SingularityEmailType;
import com.hubspot.singularity.SingularityMainModule;
import com.hubspot.singularity.SingularityRequest;
import com.hubspot.singularity.SingularityTask;
import com.hubspot.singularity.SingularityTaskHistory;
import com.hubspot.singularity.SingularityTaskHistoryUpdate;
import com.hubspot.singularity.SingularityTaskId;
import com.hubspot.singularity.SingularityTaskMetadata;
import com.hubspot.singularity.TaskCleanupType;
import com.hubspot.singularity.api.SingularityPauseRequest;
import com.hubspot.singularity.api.SingularityScaleRequest;
import com.hubspot.singularity.config.SMTPConfiguration;
import com.hubspot.singularity.config.SingularityConfiguration;
import com.hubspot.singularity.data.MetadataManager;
import com.hubspot.singularity.data.TaskManager;
import com.hubspot.singularity.sentry.SingularityExceptionNotifier;
import de.neuland.jade4j.Jade4J;
import de.neuland.jade4j.template.JadeTemplate;
import io.dropwizard.lifecycle.Managed;
public class SmtpMailer implements SingularityMailer, Managed {
private static final Logger LOG = LoggerFactory.getLogger(SingularityMailer.class);
private final SingularitySmtpSender smtpSender;
private final SingularityConfiguration configuration;
private final SMTPConfiguration smtpConfiguration;
private final ThreadPoolExecutor mailPreparerExecutorService;
private final SingularityExceptionNotifier exceptionNotifier;
private final TaskManager taskManager;
private final JadeTemplate taskTemplate;
private final JadeTemplate requestInCooldownTemplate;
private final JadeTemplate requestModifiedTemplate;
private final JadeTemplate rateLimitedTemplate;
private final JadeTemplate disastersTemplate;
private final MetadataManager metadataManager;
private final Joiner adminJoiner;
private final MailTemplateHelpers mailTemplateHelpers;
private static final Pattern TASK_STATUS_BY_PATTERN = Pattern.compile("(\\w+) by \\w+");
@Inject
public SmtpMailer(
SingularitySmtpSender smtpSender,
SingularityConfiguration configuration,
TaskManager taskManager,
MetadataManager metadataManager,
SingularityExceptionNotifier exceptionNotifier,
MailTemplateHelpers mailTemplateHelpers,
@Named(SingularityMainModule.TASK_TEMPLATE) JadeTemplate taskTemplate,
@Named(SingularityMainModule.REQUEST_IN_COOLDOWN_TEMPLATE) JadeTemplate requestInCooldownTemplate,
@Named(SingularityMainModule.REQUEST_MODIFIED_TEMPLATE) JadeTemplate requestModifiedTemplate,
@Named(SingularityMainModule.RATE_LIMITED_TEMPLATE) JadeTemplate rateLimitedTemplate,
@Named(SingularityMainModule.DISASTERS_TEMPLATE) JadeTemplate disastersTemplate) {
this.smtpSender = smtpSender;
this.smtpConfiguration = configuration.getSmtpConfigurationOptional().get();
this.configuration = configuration;
this.taskManager = taskManager;
this.metadataManager = metadataManager;
this.exceptionNotifier = exceptionNotifier;
this.adminJoiner = Joiner.on(", ").skipNulls();
this.mailTemplateHelpers = mailTemplateHelpers;
this.requestModifiedTemplate = requestModifiedTemplate;
this.taskTemplate = taskTemplate;
this.requestInCooldownTemplate = requestInCooldownTemplate;
this.rateLimitedTemplate = rateLimitedTemplate;
this.disastersTemplate = disastersTemplate;
this.mailPreparerExecutorService = JavaUtils.newFixedTimingOutThreadPool(smtpConfiguration.getMailMaxThreads(), TimeUnit.SECONDS.toMillis(1), "SingularityMailPreparer-%d");
}
@Override
public void start() throws Exception {
}
@Override
public void stop() throws Exception {
MoreExecutors.shutdownAndAwaitTermination(mailPreparerExecutorService, 1, TimeUnit.SECONDS);
}
private void populateRequestEmailProperties(Map<String, Object> templateProperties, SingularityRequest request, SingularityEmailType emailType) {
templateProperties.put("requestId", request.getId());
templateProperties.put("singularityRequestLink", mailTemplateHelpers.getSingularityRequestLink(request.getId()));
templateProperties.put("requestAlwaysRunning", request.isAlwaysRunning());
templateProperties.put("requestRunOnce", request.getRequestType() == RequestType.RUN_ONCE);
templateProperties.put("requestScheduled", request.isScheduled());
templateProperties.put("requestOneOff", request.isOneOff());
templateProperties.put("taskWillRetry", request.getNumRetriesOnFailure().or(0) > 0);
templateProperties.put("numRetries", request.getNumRetriesOnFailure().or(0));
templateProperties.put("color", emailType.getColor());
}
private void populateTaskEmailProperties(Map<String, Object> templateProperties, SingularityTaskId taskId, Collection<SingularityTaskHistoryUpdate> taskHistory, ExtendedTaskState taskState, List<SingularityTaskMetadata> taskMetadata, SingularityEmailType emailType) {
Optional<SingularityTask> task = taskManager.getTask(taskId);
Optional<String> directory = taskManager.getDirectory(taskId);
templateProperties.put("singularityTaskLink", mailTemplateHelpers.getSingularityTaskLink(taskId.getId()));
// Grab the tails of log files from remote mesos slaves.
templateProperties.put("logTails", mailTemplateHelpers.getTaskLogs(taskId, task, directory));
templateProperties.put("taskId", taskId.getId());
templateProperties.put("deployId", taskId.getDeployId());
templateProperties.put("taskDirectory", directory.or("directory missing"));
templateProperties.put("color", emailType.getColor());
if (task.isPresent()) {
templateProperties.put("slaveHostname", task.get().getOffer().getHostname());
if (task.get().getTaskRequest().getPendingTask().getCmdLineArgsList().isPresent()) {
templateProperties.put("extraCmdLineArguments", task.get().getTaskRequest().getPendingTask().getCmdLineArgsList().get());
}
}
boolean needsBeenPrefix = taskState == ExtendedTaskState.TASK_LOST || taskState == ExtendedTaskState.TASK_KILLED;
templateProperties.put("status", String.format("%s%s", needsBeenPrefix ? "has been " : "has ", taskState.getDisplayName()));
templateProperties.put("taskStateLost", taskState == ExtendedTaskState.TASK_LOST);
templateProperties.put("taskStateFailed", taskState == ExtendedTaskState.TASK_FAILED);
templateProperties.put("taskStateFinished", taskState == ExtendedTaskState.TASK_FINISHED);
templateProperties.put("taskStateKilled", taskState == ExtendedTaskState.TASK_KILLED);
templateProperties.put("taskStateRunning", taskState == ExtendedTaskState.TASK_RUNNING);
templateProperties.put("taskHasMetadata", !taskMetadata.isEmpty());
templateProperties.put("taskMetadata", mailTemplateHelpers.getJadeTaskMetadata(taskMetadata));
templateProperties.put("taskUpdates", mailTemplateHelpers.getJadeTaskHistory(taskHistory));
templateProperties.put("taskRan", mailTemplateHelpers.didTaskRun(taskHistory));
}
private static Optional<TaskCleanupType> getTaskCleanupTypefromSingularityTaskHistoryUpdate(SingularityTaskHistoryUpdate taskHistoryUpdate) {
if (!taskHistoryUpdate.getStatusMessage().isPresent()) {
return Optional.absent();
}
String taskCleanupTypeMsg = taskHistoryUpdate.getStatusMessage().get();
Matcher matcher = TASK_STATUS_BY_PATTERN.matcher(taskCleanupTypeMsg);
if (matcher.find()) {
taskCleanupTypeMsg = matcher.group(1);
}
try {
return Optional.of(TaskCleanupType.valueOf(taskCleanupTypeMsg.toUpperCase()));
} catch (IllegalArgumentException iae) {
LOG.warn("Couldn't parse TaskCleanupType from update {}", taskHistoryUpdate);
return Optional.absent();
}
}
private Optional<SingularityEmailType> getEmailType(ExtendedTaskState taskState, SingularityRequest request, Collection<SingularityTaskHistoryUpdate> taskHistory) {
final Optional<SingularityTaskHistoryUpdate> cleaningUpdate = SingularityTaskHistoryUpdate.getUpdate(taskHistory, ExtendedTaskState.TASK_CLEANING);
switch (taskState) {
case TASK_FAILED:
if (cleaningUpdate.isPresent()) {
Optional<TaskCleanupType> cleanupType = getTaskCleanupTypefromSingularityTaskHistoryUpdate(cleaningUpdate.get());
if (cleanupType.isPresent() && cleanupType.get() == TaskCleanupType.DECOMISSIONING) {
return Optional.of(SingularityEmailType.TASK_FAILED_DECOMISSIONED);
}
}
return Optional.of(SingularityEmailType.TASK_FAILED);
case TASK_FINISHED:
switch (request.getRequestType()) {
case ON_DEMAND:
return Optional.of(SingularityEmailType.TASK_FINISHED_ON_DEMAND);
case RUN_ONCE:
return Optional.of(SingularityEmailType.TASK_FINISHED_RUN_ONCE);
case SCHEDULED:
return Optional.of(SingularityEmailType.TASK_FINISHED_SCHEDULED);
case SERVICE:
case WORKER:
return Optional.of(SingularityEmailType.TASK_FINISHED_LONG_RUNNING);
}
case TASK_KILLED:
if (cleaningUpdate.isPresent()) {
Optional<TaskCleanupType> cleanupType = getTaskCleanupTypefromSingularityTaskHistoryUpdate(cleaningUpdate.get());
if (cleanupType.isPresent()) {
switch (cleanupType.get()) {
case DECOMISSIONING:
return Optional.of(SingularityEmailType.TASK_KILLED_DECOMISSIONED);
case UNHEALTHY_NEW_TASK:
case OVERDUE_NEW_TASK:
return Optional.of(SingularityEmailType.TASK_KILLED_UNHEALTHY);
default:
}
}
}
return Optional.of(SingularityEmailType.TASK_KILLED);
case TASK_LOST:
return Optional.of(SingularityEmailType.TASK_LOST);
default:
return Optional.absent();
}
}
@Override
public void sendTaskOverdueMail(final Optional<SingularityTask> task, final SingularityTaskId taskId, final SingularityRequest request, final long runTime, final long expectedRuntime) {
final Builder<String, Object> templateProperties = ImmutableMap.<String, Object>builder();
templateProperties.put("runTime", DurationFormatUtils.formatDurationHMS(runTime));
templateProperties.put("expectedRunTime", DurationFormatUtils.formatDurationHMS(expectedRuntime));
templateProperties.put("warningThreshold", String.format("%s%%", configuration.getWarnIfScheduledJobIsRunningPastNextRunPct()));
templateProperties.put("status", "is overdue to finish");
prepareTaskMail(task, taskId, request, SingularityEmailType.TASK_SCHEDULED_OVERDUE_TO_FINISH, templateProperties.build(), taskManager.getTaskHistoryUpdates(taskId),
ExtendedTaskState.TASK_RUNNING, Collections.<SingularityTaskMetadata> emptyList());
}
@Override
public void queueTaskCompletedMail(final Optional<SingularityTask> task, final SingularityTaskId taskId, final SingularityRequest request, final ExtendedTaskState taskState) {
if (shouldQueueMail(task, taskId, request, taskState)) {
taskManager.saveTaskFinishedInMailQueue(taskId);
}
}
private boolean shouldQueueMail(final Optional<SingularityTask> task, final SingularityTaskId taskId, final SingularityRequest request, final ExtendedTaskState taskState) {
final Collection<SingularityTaskHistoryUpdate> taskHistory = taskManager.getTaskHistoryUpdates(taskId);
final Optional<SingularityEmailType> emailType = getEmailType(taskState, request, taskHistory);
if (!emailType.isPresent()) {
LOG.debug("No configured emailType for {} and {}", request, taskState);
return false;
}
final Collection<SingularityEmailDestination> emailDestination = getDestination(request, emailType.get());
if (emailDestination.isEmpty()) {
LOG.debug("Not configured to send task mail for {}", emailType);
return false;
}
RateLimitStatus rateLimitStatus = getCurrentRateLimitForMail(request, emailType.get());
switch (rateLimitStatus) {
case RATE_LIMITED:
return false;
case RATE_LIMITING_DISABLED:
case NOT_RATE_LIMITED:
default:
return true;
}
}
private void prepareTaskMail(Optional<SingularityTask> task, SingularityTaskId taskId, SingularityRequest request, SingularityEmailType emailType, Map<String, Object> extraProperties,
Collection<SingularityTaskHistoryUpdate> taskHistory, ExtendedTaskState taskState, List<SingularityTaskMetadata> taskMetadata) {
final Collection<SingularityEmailDestination> emailDestination = getDestination(request, emailType);
final Map<String, Object> templateProperties = Maps.newHashMap();
populateRequestEmailProperties(templateProperties, request, emailType);
populateTaskEmailProperties(templateProperties, taskId, taskHistory, taskState, taskMetadata, emailType);
templateProperties.putAll(extraProperties);
final String subject = mailTemplateHelpers.getSubjectForTaskHistory(taskId, taskState, emailType, taskHistory);
final String adminEmails = adminJoiner.join(smtpConfiguration.getAdmins());
templateProperties.put("adminEmails", adminEmails);
final String body = Jade4J.render(taskTemplate, templateProperties);
final Optional<String> user = task.isPresent() ? task.get().getTaskRequest().getPendingTask().getUser() : Optional.<String> absent();
queueMail(emailDestination, request, emailType, user, subject, body);
}
@Override
public void sendTaskCompletedMail(SingularityTaskHistory taskHistory, SingularityRequest request) {
final Optional<SingularityTaskHistoryUpdate> lastUpdate = taskHistory.getLastTaskUpdate();
if (!lastUpdate.isPresent()) {
LOG.warn("Can't send task completed mail for task {} - no last update", taskHistory.getTask().getTaskId());
return;
}
final Optional<SingularityEmailType> emailType = getEmailType(lastUpdate.get().getTaskState(), request, taskHistory.getTaskUpdates());
if (!emailType.isPresent()) {
LOG.debug("No configured emailType for {} and {}", request, lastUpdate.get().getTaskState());
return;
}
prepareTaskMail(Optional.of(taskHistory.getTask()), taskHistory.getTask().getTaskId(), request, emailType.get(), Collections.<String, Object> emptyMap(),
taskHistory.getTaskUpdates(), lastUpdate.get().getTaskState(), taskHistory.getTaskMetadata());
}
private List<SingularityEmailDestination> getDestination(SingularityRequest request, SingularityEmailType type) {
// check for request-level email override
if (request.getEmailConfigurationOverrides().isPresent() && request.getEmailConfigurationOverrides().get().get(type) != null) {
return request.getEmailConfigurationOverrides().get().get(type);
}
List<SingularityEmailDestination> fromMap = smtpConfiguration.getEmailConfiguration().get(type);
if (fromMap == null) {
return Collections.emptyList();
}
return fromMap;
}
private enum RequestMailType {
PAUSED(SingularityEmailType.REQUEST_PAUSED), UNPAUSED(SingularityEmailType.REQUEST_UNPAUSED), REMOVED(SingularityEmailType.REQUEST_REMOVED), SCALED(SingularityEmailType.REQUEST_SCALED);
private final SingularityEmailType emailType;
private RequestMailType(SingularityEmailType emailType) {
this.emailType = emailType;
}
public SingularityEmailType getEmailType() {
return emailType;
}
}
private void sendRequestMail(final SingularityRequest request, final RequestMailType type, final Optional<String> user, final Optional<String> message, final Optional<Map<String, Object>> additionalProperties) {
mailPreparerExecutorService.submit(new Runnable() {
@Override
public void run() {
try {
prepareRequestMail(request, type, user, message, additionalProperties);
} catch (Throwable t) {
LOG.error("While preparing request mail for {} / {}", request, type, t);
exceptionNotifier.notify(String.format("Error preparing request mail (%s)", t.getMessage()), t, ImmutableMap.of("requestId", request.getId()));
}
}
});
}
private void prepareRequestMail(SingularityRequest request, RequestMailType type, Optional<String> user, Optional<String> message, Optional<Map<String, Object>> additionalProperties) {
final List<SingularityEmailDestination> emailDestination = getDestination(request, type.getEmailType());
if (emailDestination.isEmpty()) {
LOG.debug("Not configured to send request cooldown mail for");
return;
}
final String subject = String.format("Request %s has been %s — Singularity", request.getId(), type.name().toLowerCase());
final Map<String, Object> templateProperties = Maps.newHashMap();
populateRequestEmailProperties(templateProperties, request, type.getEmailType());
templateProperties.put("expiring", Boolean.FALSE);
templateProperties.put("requestPaused", type == RequestMailType.PAUSED);
templateProperties.put("requestUnpaused", type == RequestMailType.UNPAUSED);
templateProperties.put("requestScaled", type == RequestMailType.SCALED);
templateProperties.put("action", type.name().toLowerCase());
templateProperties.put("hasUser", user.isPresent());
templateProperties.put("hasMessage", message.isPresent());
if (user.isPresent()) {
templateProperties.put("user", user.get());
}
if (message.isPresent()) {
templateProperties.put("message", message.get());
}
if (additionalProperties.isPresent()) {
templateProperties.putAll(additionalProperties.get());
}
final String body = Jade4J.render(requestModifiedTemplate, templateProperties);
queueMail(emailDestination, request, type.getEmailType(), user, subject, body);
}
private void setupExpireFormat(Map<String, Object> additionalProperties, Optional<Long> durationMillis) {
if (!durationMillis.isPresent()) {
return;
}
additionalProperties.put("expiring", Boolean.TRUE);
final long now = System.currentTimeMillis();
final long future = now + durationMillis.get();
additionalProperties.put("expireFormat", DateFormatUtils.format(new Date(future), smtpConfiguration.getMailerDatePattern(), smtpConfiguration.getMailerTimeZone()));
}
@Override
public void sendRequestPausedMail(SingularityRequest request, Optional<SingularityPauseRequest> pauseRequest, Optional<String> user) {
Map<String, Object> additionalProperties = new HashMap<>();
Boolean killTasks = Boolean.TRUE;
Optional<String> message = Optional.absent();
if (pauseRequest.isPresent()) {
setupExpireFormat(additionalProperties, pauseRequest.get().getDurationMillis());
if (pauseRequest.get().getKillTasks().isPresent()) {
killTasks = pauseRequest.get().getKillTasks().get();
}
message = pauseRequest.get().getMessage();
}
additionalProperties.put("killTasks", killTasks);
sendRequestMail(request, RequestMailType.PAUSED, user, message, Optional.of(additionalProperties));
}
@Override
public void sendRequestUnpausedMail(SingularityRequest request, Optional<String> user, Optional<String> message) {
sendRequestMail(request, RequestMailType.UNPAUSED, user, message, Optional.<Map<String, Object>> absent());
}
@Override
public void sendRequestScaledMail(SingularityRequest request, Optional<SingularityScaleRequest> newScaleRequest, Optional<Integer> formerInstances, Optional<String> user) {
Map<String, Object> additionalProperties = new HashMap<>();
Optional<String> message = Optional.absent();
if (newScaleRequest.isPresent()) {
setupExpireFormat(additionalProperties, newScaleRequest.get().getDurationMillis());
message = newScaleRequest.get().getMessage();
}
additionalProperties.put("newInstances", request.getInstancesSafe());
additionalProperties.put("oldInstances", formerInstances.or(1));
sendRequestMail(request, RequestMailType.SCALED, user, message, Optional.of(additionalProperties));
}
@Override
public void sendRequestRemovedMail(SingularityRequest request, Optional<String> user, Optional<String> message) {
sendRequestMail(request, RequestMailType.REMOVED, user, message, Optional.<Map<String, Object>> absent());
}
@Override
public void sendRequestInCooldownMail(final SingularityRequest request) {
mailPreparerExecutorService.submit(new Runnable() {
@Override
public void run() {
try {
prepareRequestInCooldownMail(request);
} catch (Throwable t) {
LOG.error("While preparing request in cooldown mail for {}", request, t);
exceptionNotifier.notify(String.format("Error preparing cooldown mail (%s)", t.getMessage()), t, ImmutableMap.of("requestId", request.getId()));
}
}
});
}
private void prepareRequestInCooldownMail(SingularityRequest request) {
final List<SingularityEmailDestination> emailDestination = getDestination(request, SingularityEmailType.REQUEST_IN_COOLDOWN);
if (emailDestination.isEmpty()) {
LOG.debug("Not configured to send request cooldown mail for");
return;
}
final Map<String, Object> templateProperties = Maps.newHashMap();
populateRequestEmailProperties(templateProperties, request, SingularityEmailType.REQUEST_IN_COOLDOWN);
final String subject = String.format("Request %s has entered system cooldown — Singularity", request.getId());
templateProperties.put("numFailures", configuration.getCooldownAfterFailures());
templateProperties.put("cooldownDelayFormat", DurationFormatUtils.formatDurationHMS(TimeUnit.SECONDS.toMillis(configuration.getCooldownMinScheduleSeconds())));
templateProperties.put("cooldownExpiresFormat", DurationFormatUtils.formatDurationHMS(TimeUnit.MINUTES.toMillis(configuration.getCooldownExpiresAfterMinutes())));
final String body = Jade4J.render(requestInCooldownTemplate, templateProperties);
queueMail(emailDestination, request, SingularityEmailType.REQUEST_IN_COOLDOWN, Optional.<String> absent(), subject, body);
}
@Override
public void sendDisasterMail(final SingularityDisastersData disastersData) {
mailPreparerExecutorService.submit(new Runnable() {
@Override
public void run() {
try {
prepareDisasterMail(disastersData);
} catch (Throwable t) {
LOG.error("While preparing request in disaster mail for {}", disastersData, t);
exceptionNotifier.notify(String.format("Error preparing cooldown mail (%s)", t.getMessage()), t, ImmutableMap.of("disasterData", disastersData.toString()));
}
}
});
}
private void prepareDisasterMail(final SingularityDisastersData disastersData) {
final List<SingularityEmailDestination> emailDestination = configuration.getSmtpConfigurationOptional().get().getEmailConfiguration().get(SingularityEmailType.DISASTER_DETECTED);
if (emailDestination.isEmpty() || !emailDestination.contains(SingularityEmailDestination.ADMINS) || smtpConfiguration.getAdmins().isEmpty()) {
LOG.info("Not configured to send disaster detected mail");
return;
}
final List<String> toList = smtpConfiguration.getAdmins();
final List<String> ccList = Lists.newArrayList();
final String subject = String.format("Disaster(s) Detected %s", disastersData.getDisasters());
final Map<String, Object> templateProperties = Maps.newHashMap();
templateProperties.put("disasterTypes", disastersData.getDisasters());
templateProperties.put("stats", mailTemplateHelpers.getJadeDisasterStats(disastersData.getStats()));
final String body = Jade4J.render(disastersTemplate, templateProperties);
smtpSender.queueMail(toList, ccList, subject, body);
}
private enum RateLimitStatus {
RATE_LIMITING_DISABLED, RATE_LIMITED, NOT_RATE_LIMITED;
}
private enum RateLimitResult {
SEND_MAIL, DONT_SEND_MAIL_IN_COOLDOWN, SEND_COOLDOWN_STARTED_MAIL;
}
private RateLimitStatus getCurrentRateLimitForMail(SingularityRequest request, SingularityEmailType emailType) {
if (smtpConfiguration.getRateLimitAfterNotifications() < 1) {
LOG.trace("Mail rate limit cooldown disabled");
return RateLimitStatus.RATE_LIMITING_DISABLED;
}
final String requestId = request.getId();
final String emailTypeName = emailType.name();
final long now = System.currentTimeMillis();
final Optional<String> cooldownMarker = metadataManager.getMailCooldownMarker(requestId, emailTypeName);
if (cooldownMarker.isPresent()) {
final long cooldownLeft = smtpConfiguration.getRateLimitCooldownMillis() - (now - Long.parseLong(cooldownMarker.get()));
if (cooldownLeft > 0) {
LOG.debug("Not sending {} for {} - mail cooldown has {} time left out of {}", emailTypeName, requestId, cooldownLeft, smtpConfiguration.getRateLimitCooldownMillis());
return RateLimitStatus.RATE_LIMITED;
}
metadataManager.removeMailCooldown(requestId, emailTypeName);
}
return RateLimitStatus.NOT_RATE_LIMITED;
}
private RateLimitResult checkRateLimitForMail(SingularityRequest request, SingularityEmailType emailType) {
RateLimitStatus currentStatus = getCurrentRateLimitForMail(request, emailType);
switch (currentStatus) {
case RATE_LIMITED:
return RateLimitResult.DONT_SEND_MAIL_IN_COOLDOWN;
case RATE_LIMITING_DISABLED:
return RateLimitResult.SEND_MAIL;
case NOT_RATE_LIMITED:
break;
}
final String requestId = request.getId();
final String emailTypeName = emailType.name();
final long now = System.currentTimeMillis();
metadataManager.saveMailRecord(request, emailType);
int numInPeriod = 0;
for (String recentMailRecord : metadataManager.getMailRecords(request.getId(), emailType.name())) {
if (now - Long.parseLong(recentMailRecord) < smtpConfiguration.getRateLimitPeriodMillis()) {
numInPeriod++;
}
}
if (numInPeriod > smtpConfiguration.getRateLimitAfterNotifications()) {
LOG.info("{} for {} sent at least {} times in {}, not sending this mail again for at least {}", emailTypeName, requestId, numInPeriod, smtpConfiguration.getRateLimitAfterNotifications(), smtpConfiguration.getRateLimitCooldownMillis());
metadataManager.cooldownMail(requestId, emailTypeName);
return RateLimitResult.SEND_COOLDOWN_STARTED_MAIL;
}
return RateLimitResult.SEND_MAIL;
}
/**
* Add needed information to the rate limit email Jade context.
* @param request SingularityRequest that the rate limit email is about.
* @param emailType what the email is about.
* @return template properties to add to the Jade context.
*/
private Map<String, Object> getRateLimitTemplateProperties(SingularityRequest request, final SingularityEmailType emailType) {
final Builder<String, Object> templateProperties = ImmutableMap.<String, Object>builder();
templateProperties.put("singularityRequestLink", mailTemplateHelpers.getSingularityRequestLink(request.getId()));
templateProperties.put("rateLimitAfterNotifications", Integer.toString(smtpConfiguration.getRateLimitAfterNotifications()));
templateProperties.put("rateLimitPeriodFormat", DurationFormatUtils.formatDurationHMS(smtpConfiguration.getRateLimitPeriodMillis()));
templateProperties.put("rateLimitCooldownFormat", DurationFormatUtils.formatDurationHMS(smtpConfiguration.getRateLimitCooldownMillis()));
templateProperties.put("emailType", emailType.name());
templateProperties.put("requestId", request.getId());
templateProperties.put("color", emailType.getColor());
return templateProperties.build();
}
/**
* Check to see if email should be rate limited, and if so, send a rate limit
* email notification. Next attempt to email will immediately return.
*
* @param destination collection of enum values used to specify who will receive this email.
* @param request SingularityRequest this email is about.
* @param emailType what the email is about (e.g. TASK_FAILED).
* @param actionTaker the user taking the action
* @param subject the subject line of the email.
* @param body the body of the email.
*/
private void queueMail(final Collection<SingularityEmailDestination> destination, final SingularityRequest request, final SingularityEmailType emailType, final Optional<String> actionTaker, String subject, String body) {
RateLimitResult result = checkRateLimitForMail(request, emailType);
if (result == RateLimitResult.DONT_SEND_MAIL_IN_COOLDOWN) {
return;
}
if (result == RateLimitResult.SEND_COOLDOWN_STARTED_MAIL) {
subject = String.format("%s notifications for %s are being rate limited", emailType.name(), request.getId());
body = Jade4J.render(rateLimitedTemplate, getRateLimitTemplateProperties(request, emailType));
}
final List<String> toList = Lists.newArrayList();
final List<String> ccList = Lists.newArrayList();
// Decide where to send this email.
if (destination.contains(SingularityEmailDestination.OWNERS) && request.getOwners().isPresent() && !request.getOwners().get().isEmpty()) {
toList.addAll(request.getOwners().get());
}
if (destination.contains(SingularityEmailDestination.ADMINS) && !smtpConfiguration.getAdmins().isEmpty()) {
if (toList.isEmpty()) {
toList.addAll(smtpConfiguration.getAdmins());
} else {
ccList.addAll(smtpConfiguration.getAdmins());
}
}
if (actionTaker.isPresent() && !Strings.isNullOrEmpty(actionTaker.get())) {
if (destination.contains(SingularityEmailDestination.ACTION_TAKER)) {
toList.add(actionTaker.get());
} else {
final Iterator<String> i = toList.iterator();
while (i.hasNext()) {
if (actionTaker.get().equalsIgnoreCase(i.next())) {
i.remove();
}
}
}
}
smtpSender.queueMail(toList, ccList, subject, body);
}
}