-
Notifications
You must be signed in to change notification settings - Fork 2
/
base_customer.py
964 lines (839 loc) · 38.4 KB
/
base_customer.py
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
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
# -*- coding: utf-8 -*-
"""
base_customer.py
Base class representing a single nimbus.io customer
"""
import hashlib
import logging
import random
import motoboto
from motoboto.s3.key import Key
from lumberyard.http_connection import LumberyardHTTPError, \
LumberyardRetryableHTTPError
from lumberyard.http_util import compute_default_collection_name
from mock_input_file import MockInputFile, MockInputFileError
from mock_output_file import MockOutputFile
from bucket_name_manager import BucketNameManager
from key_name_manager import KeyNameManager
from collection_ops_accounting import CollectionOpsAccounting
class CustomerError(Exception):
pass
class VerificationError(CustomerError):
pass
_max_archive_retries = 10
_max_delete_retries = 10
class BaseCustomer(object):
"""
Base class representing a single nimbus.io customer
"""
def __init__(self, halt_event, user_identity, test_script):
self._log = logging.getLogger(user_identity.user_name)
self._halt_event = halt_event
self._user_identity = user_identity
self._test_script = test_script
self._multipart_upload_cutoff = \
2 * self._test_script["multipart-part-size"]
if "archive-failure-percent" in self._test_script:
self._archive_failure_percent = \
self._test_script["archive-failure-percent"]
else:
self._archive_failure_percent = 0
self._default_collection_name = compute_default_collection_name(
self._user_identity.user_name
)
self._s3_connection = None
self._buckets = dict()
self._bucket_accounting = dict()
self._versioned_bucket_names = list()
self._unversioned_bucket_names = list()
self._dispatch_table = {
"create-bucket" : self._create_bucket,
"create-versioned-bucket" : self._create_versioned_bucket,
"delete-bucket" : self._delete_bucket,
"archive-new-key" : self._archive_new_key,
"archive-new-version" : self._archive_new_version,
"archive-overwrite" : self._archive_overwrite,
"retrieve-latest" : self._retrieve_latest,
"retrieve-version" : self._retrieve_version,
"delete-key" : self._delete_key,
"delete-version" : self._delete_version,
}
self._frequency_table = list()
self._bucket_name_manager = BucketNameManager(
self._user_identity.user_name,
test_script["max-bucket-count"],
)
self._key_name_manager = KeyNameManager()
self._key_name_generator = None
self.key_verification = dict()
self._error_count = 0
@property
def error_count(self):
return self._error_count
def _main_loop(self):
self._s3_connection = motoboto.connect_s3(identity=self._user_identity)
self._initial_inventory()
if self._test_script.get("verify-before", False):
self._verify_before()
self._load_frequency_table()
self._key_name_generator = self._key_name_manager.key_name_generator()
# do an initial delay so all customers don't start at once
self._delay()
while not self._halt_event.is_set():
# run a randomly selected test function
test_function = self._frequency_table[random.randint(0, 99)]
try:
test_function()
except Exception:
self._error_count += 1
self._log.exception("test_function error #{0}".format(
self._error_count))
self._delay()
if self._test_script.get("verify-after", False):
self._verify_after()
if self._test_script.get("audit-after", False):
self._audit_after()
self._s3_connection.close()
self._log.info("{0} errors".format(self._error_count))
def _initial_inventory(self):
"""get an initial inventory of buckets and files"""
buckets = self._s3_connection.get_all_buckets()
for bucket in buckets:
self._log.info("_initial_inventory found bucket %r" % (
bucket.name,
))
self._buckets[bucket.name] = bucket
self._bucket_name_manager.existing_bucket_name(bucket.name)
if bucket.versioning:
self._versioned_bucket_names.append(bucket.name)
else:
self._unversioned_bucket_names.append(bucket.name)
self._bucket_accounting[bucket.name] = CollectionOpsAccounting()
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
keys = bucket.get_all_keys()
bucket_accounting.increment_by("listmatch_success", 1)
for key in keys:
self._log.info("_initial_inventory found key %r, %r" % (
key.name, bucket.name,
))
self._key_name_manager.existing_key_name(key.name)
def _verify_key(self, bucket, key, data_size, md5_digest):
verification_key = (bucket.name, key.name, key.version_id, )
try:
expected_data_size, expected_md5_digest = \
self.key_verification[verification_key]
except KeyError:
self._error_count += 1
self._log.error("_verify_key key not found {0} error #{1}".format(
verification_key, self._error_count))
return
if data_size != expected_data_size:
self._error_count += 1
self._log.error("size mistmatch {0} {1} {2} error #{3}".format(
data_size,
expected_data_size,
verification_key,
self._error_count))
if expected_md5_digest is not None and \
md5_digest != expected_md5_digest:
self._error_count += 1
self._log.error("md5 mismatch {0} error #{1}".format(
verification_key, self._error_count))
def _verify_key_final(self, bucket, key, data_size, md5_digest):
"""
remove key when verifying, so we can track unmatched keys
"""
verification_key = (bucket.name, key.name, key.version_id, )
try:
expected_data_size, expected_md5_digest = \
self.key_verification.pop(verification_key)
except KeyError:
self._error_count += 1
self._log.error("key not found {0} error #{1}".format(
verification_key, self._error_count))
return
if data_size != expected_data_size:
self._error_count += 1
self._log.error("size mistmatch {0} {1} {2} error #{3}".format(
data_size,
expected_data_size,
verification_key,
self._error_count))
if expected_md5_digest is not None and \
md5_digest != expected_md5_digest:
self._error_count += 1
self._log.error("md5 mismatch {0} error #{1}".format(
verification_key, self._error_count))
def _verify_before(self):
"""
retrieve all known keys to verify that they are reachable
store md5 digests
"""
self._log.info("verifying retrieves before")
buckets = self._s3_connection.get_all_buckets()
for bucket in buckets:
bucket_accounting = self._bucket_accounting[bucket.name]
if bucket.versioning:
bucket_accounting.increment_by("listmatch_request", 1)
for key in bucket.get_all_versions():
result = key.get_contents_as_string(
version_id=key.version_id
)
verification_key = (bucket.name, key.name, key.version_id)
md5_sum = hashlib.md5(result)
if verification_key in self.key_verification:
self._log.error("duplicate key (versioning) %s" % (
verification_key, ))
self.key_verification[verification_key] = \
(len(result), md5_sum.digest(), )
bucket_accounting.increment_by("listmatch_success", 1)
else:
bucket_accounting.increment_by("listmatch_request", 1)
for key in bucket.get_all_keys():
result = key.get_contents_as_string()
md5_sum = hashlib.md5(result)
verification_key = (bucket.name, key.name, key.version_id)
if verification_key in self.key_verification:
self._log.error("duplicate key %s" % (
verification_key, ))
self.key_verification[verification_key] = \
(len(result), md5_sum.digest(), )
bucket_accounting.increment_by("listmatch_success", 1)
def _verify_after(self):
"""
retrieve all known keys to verify that they are reachable
check md5 digests if they exist
"""
self._log.info("verifying retrieves after")
buckets = self._s3_connection.get_all_buckets()
for bucket in buckets:
bucket_accounting = self._bucket_accounting[bucket.name]
if bucket.versioning:
bucket_accounting.increment_by("listmatch_request", 1)
for key in bucket.get_all_versions():
result = key.get_contents_as_string(
version_id=key.version_id
)
md5_sum = hashlib.md5(result)
self._verify_key_final(bucket,
key,
len(result),
md5_sum.digest())
bucket_accounting.increment_by("listmatch_success", 1)
else:
bucket_accounting.increment_by("listmatch_request", 1)
for key in bucket.get_all_keys():
result = key.get_contents_as_string()
md5_sum = hashlib.md5(result)
self._verify_key_final(bucket,
key,
len(result),
md5_sum.digest())
bucket_accounting.increment_by("listmatch_success", 1)
if len(self.key_verification) > 0:
self._log.info("{0} unreachable keys".format(
len(self.key_verification)))
for key, value in self.key_verification.items():
self._error_count += 1
self._log.error("unreachable key {0} {1}".format(key, value))
def _audit_after(self):
"""
retrieve the space_usage for each bucket and compare it to our value
"""
self._log.info("audit_after begin")
audit_error_count = 0
buckets = self._s3_connection.get_all_buckets()
for bucket in buckets:
result = bucket.get_space_used()
if not result["success"]:
audit_error_count += 1
self._log.error("audit {0} {1}".format(bucket.name,
result["error_message"]))
continue
# XXX: can't handle more than one day
if len(result["operational_stats"]) > 1:
audit_error_count += 1
self._log.error("audit {0} need a single day {1}".format(
bucket.name, result["operational_stats"]))
continue
if len(result["operational_stats"]) == 0:
self._log.info("audit {0} no server data".format(bucket.name))
server_audit = {"archive_success" : 0,
"success_bytes_in" : 0,
"retrieve_success" : 0,
"success_bytes_out" : 0,
"delete_success" : 0,
"listmatch_success" : 0, }
else:
server_audit = result["operational_stats"][0]
our_audit = self._bucket_accounting[bucket.name]
if our_audit["archive_success"] != server_audit["archive_success"]:
audit_error_count += 1
self._log.error("audit {0} archive_success {1} {2}".format(
bucket.name,
our_audit["archive_success"],
server_audit["archive_success"]))
if our_audit["success_bytes_in"] != server_audit["success_bytes_in"]:
audit_error_count += 1
self._log.error("audit {0} success_bytes_in {1} {2}".format(
bucket.name,
our_audit["success_bytes_in"],
server_audit["success_bytes_in"]))
if our_audit["retrieve_success"] != server_audit["retrieve_success"]:
audit_error_count += 1
self._log.error("audit {0} retrieve_success {1} {2}".format(
bucket.name,
our_audit["retrieve_success"],
server_audit["retrieve_success"]))
if our_audit["success_bytes_out"] != server_audit["success_bytes_out"]:
audit_error_count += 1
self._log.error("audit {0} success_bytes_out {1} {2}".format(
bucket.name,
our_audit["success_bytes_out"],
server_audit["success_bytes_out"]))
if our_audit["delete_success"] != server_audit["delete_success"]:
audit_error_count += 1
self._log.error("audit {0} delete_success {1} {2}".format(
bucket.name,
our_audit["delete_success"],
server_audit["delete_success"]))
if our_audit["listmatch_success"] != server_audit["listmatch_success"]:
audit_error_count += 1
self._log.error("audit {0} listmatch_success {1} {2}".format(
bucket.name,
our_audit["listmatch_success"],
server_audit["listmatch_success"]))
self._log.info("audit_after found {0} errors".format(audit_error_count))
self._error_count += audit_error_count
def _load_frequency_table(self):
"""
for each action specfied in the distribution append n instances
of the corresponding function object. We will choose a random number
between 0 and 99, to select a test action
"""
for key in self._test_script["distribution"].keys():
count = self._test_script["distribution"][key]
for _ in xrange(count):
self._frequency_table.append(self._dispatch_table[key])
assert len(self._frequency_table) == 100
def _delay(self):
"""wait for a (delimited) random time"""
delay_size = random.uniform(
self._test_script["low-delay"], self._test_script["high-delay"]
)
self._halt_event.wait(timeout=delay_size)
def _create_unversioned_bucket(self):
if len(self._buckets) >= self._test_script["max-bucket-count"]:
self._log.info("ignore _create_bucket: already have %s buckets" % (
len(self._buckets),
))
return None
bucket_name = self._bucket_name_manager.next()
if bucket_name is None:
self._log.info("ignore _create_bucket")
return
new_bucket = self._s3_connection.create_bucket(bucket_name)
self._buckets[new_bucket.name] = new_bucket
self._bucket_accounting[new_bucket.name] = CollectionOpsAccounting()
return new_bucket
def _create_bucket(self):
bucket = self._create_unversioned_bucket()
if bucket is None:
return
self._log.info("create unversioned bucket {0} {1}".format(
bucket.name, bucket.versioning, ))
self._unversioned_bucket_names.append(bucket.name)
def _create_versioned_bucket(self):
bucket = self._create_unversioned_bucket()
if bucket is None:
return
bucket.configure_versioning(True)
self._log.info("create versioned bucket {0} {1}".format(
bucket.name, bucket.versioning, ))
self._versioned_bucket_names.append(bucket.name)
def _delete_bucket(self):
eligible_bucket_names = [
k for k in self._buckets.keys() \
if k != self._default_collection_name
]
if len(eligible_bucket_names) == 0:
self._log.warn("no buckets eligible for deletion")
return
bucket_name = random.choice(eligible_bucket_names)
bucket = self._buckets.pop(bucket_name)
self._log.info("delete bucket {0} versioned={1}".format(
bucket.name, bucket.versioning))
self._bucket_accounting[bucket_name].mark_end()
if bucket.versioning:
self._clear_versioned_bucket(bucket)
else:
self._clear_unversioned_bucket(bucket)
self._bucket_name_manager.deleted_bucket_name(bucket.name)
self._s3_connection.delete_bucket(bucket.name)
def _clear_versioned_bucket(self, bucket):
try:
i = self._versioned_bucket_names.index(bucket.name)
except ValueError:
self._log.error("not found in versioned buckets {0}".format(
bucket.name))
else:
del self._versioned_bucket_names[i]
bucket_accounting = self._bucket_accounting[bucket.name]
# delete all the keys (or versions) for the bucket
bucket_accounting.increment_by("listmatch_request", 1)
for key in bucket.get_all_versions():
verification_key = (bucket.name, key.name, key.version_id)
self._log.info("_delete_bucket deleting version {0}".format(
verification_key))
retry_count = 0
while not self._halt_event.is_set():
bucket_accounting.increment_by("delete_request", 1)
try:
key.delete(version_id=key.version_id)
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("delete_error", 1)
if retry_count >= _max_delete_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
else:
break
bucket_accounting.increment_by("delete_success", 1)
try:
del self.key_verification[verification_key]
except KeyError:
self._log.error(
"_delete_bucket verification key not found %s" % (
verification_key, ))
bucket_accounting.increment_by("listmatch_success", 1)
def _clear_unversioned_bucket(self, bucket):
try:
i = self._unversioned_bucket_names.index(bucket.name)
except ValueError:
self._log.error("not found in unversioned buckets {0}".format(
bucket.name))
else:
del self._unversioned_bucket_names[i]
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
for key in bucket.get_all_keys():
verification_key = (bucket.name, key.name, key.version_id)
self._log.info("_delete_bucket deleting key {0}".format(
verification_key))
retry_count = 0
while not self._halt_event.is_set():
bucket_accounting.increment_by("delete_request", 1)
try:
key.delete()
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("delete_error", 1)
if retry_count >= _max_delete_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
else:
break
bucket_accounting.increment_by("delete_success", 1)
try:
del self.key_verification[verification_key]
except KeyError:
self._log.error(
"_delete_bucket verification key not found %s" % (
verification_key, ))
bucket_accounting.increment_by("listmatch_success", 1)
def _archive_new_key(self):
"""
add a new key to a bucket
"""
# we assume the user has at least one bucket, the default
bucket = random.choice(self._buckets.values())
key_name = self._key_name_generator.next()
self._archive(bucket, key_name)
def _archive_new_version(self):
"""
add a new version of an existing key to a bucket
"""
if len(self._versioned_bucket_names) == 0:
self._log.warn(
"_archive_new_version ignored: no versioned buckets"
)
return
bucket_name = random.choice(self._versioned_bucket_names)
bucket = self._buckets[bucket_name]
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
keys = bucket.get_all_keys()
bucket_accounting.increment_by("listmatch_success", 1)
# if this bucket doesn't have any keys yet, go ahead and add
# a new one. Otherwise, add a new version of an existing key
if len(keys) == 0:
key_name = self._key_name_generator.next()
else:
key = random.choice(keys)
key_name = key.name
self._archive(bucket, key_name)
def _archive_overwrite(self):
if len(self._unversioned_bucket_names) == 0:
self._log.warn(
"_archive_overwrite ignored: no unversioned buckets"
)
return
bucket_name = random.choice(self._unversioned_bucket_names)
bucket = self._buckets[bucket_name]
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
keys = bucket.get_all_keys()
bucket_accounting.increment_by("listmatch_success", 1)
# if this bucket doesn't have any keys yet, go ahead and add
# a new one. Otherwise, write over an existing key
if len(keys) == 0:
key_name = self._key_name_generator.next()
else:
key = random.choice(keys)
key_name = key.name
verification_key = (bucket.name, key.name, key.version_id)
self._log.info("overwriting {0}".format(verification_key))
try:
del self.key_verification[verification_key]
except KeyError:
self._log.error(
"_archive_overwrite verification key not found %s" % (
verification_key, ))
self._archive(bucket, key_name)
def _archive(self, bucket, key_name, replace=True):
size = random.randint(
self._test_script["min-file-size"],
self._test_script["max-file-size"]
)
if size > self._multipart_upload_cutoff:
self._archive_multipart(bucket, key_name, replace, size)
else:
self._archive_one_file(bucket, key_name, replace, size)
def _archive_multipart(self, bucket, key_name, replace, size):
# divide up the size into chunks >= part-isze
base_size = self._test_script["multipart-part-size"]
part_sizes = [base_size for _ in range(size / base_size)]
part_sizes[-1] += size % base_size
self._log.info("initiate multipart %r %r %s" % (
bucket.name, key_name, size
))
bucket_accounting = self._bucket_accounting[bucket.name]
retry_count = 0
while not self._halt_event.is_set():
bucket_accounting.increment_by("archive_request", 1)
try:
multipart_upload = bucket.initiate_multipart_upload(key_name)
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("archive_error", 1)
if retry_count >= _max_delete_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
else:
break
if self._halt_event.is_set():
self._log.info("halt_event set")
return
self._log.info("archive multipart %r %r %s %s" % (
bucket.name, key_name, multipart_upload.id, size
))
# TODO: do this in parallel
for i, part_size in enumerate(part_sizes):
force_error = random.randint(0, 99) < self._archive_failure_percent
part_num = i + 1
retry_count = 0
while not self._halt_event.is_set():
input_file = MockInputFile(part_size, force_error=force_error)
try:
multipart_upload.upload_part_from_file(
input_file, part_num, replace
)
except MockInputFileError:
bucket_accounting.increment_by("archive_error", 1)
self._log.info("MockInputFileError")
return
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("archive_error", 1)
if retry_count >= _max_delete_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
else:
break
if self._halt_event.is_set():
self._log.info("halt_event set")
return
retry_count = 0
while not self._halt_event.is_set():
try:
multipart_upload.complete_upload()
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("archive_error", 1)
if retry_count >= _max_delete_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
else:
break
if self._halt_event.is_set():
self._log.info("halt_event set")
return
verification_key = (bucket.name, key_name, multipart_upload.id, )
if verification_key in self.key_verification:
self._log.error("_archive_multipart duplicate key %s" % (
verification_key, ))
bucket_accounting.increment_by("archive_success", 1)
self.key_verification[verification_key] = (size, None, )
def _archive_one_file( self, bucket, key_name, replace, size, ):
key = Key(bucket)
key.name = key_name
self._log.info("_archive_one_file ({0} {1} ...) versioning={2}".format(
bucket.name,
key.name,
bucket.versioning,
))
bucket_accounting = self._bucket_accounting[bucket.name]
retry_count = 0
force_error = random.randint(0, 99) < self._archive_failure_percent
while not self._halt_event.is_set():
bucket_accounting.increment_by("archive_request", 1)
input_file = MockInputFile(size, force_error)
try:
key.set_contents_from_file(input_file, replace=replace)
except MockInputFileError:
bucket_accounting.increment_by("archive_error", 1)
self._log.info("MockInputFileError")
return
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("archive_error", 1)
if retry_count >= _max_archive_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
continue
verification_key = (bucket.name, key.name, key.version_id, )
self._log.info("archived {0}".format(verification_key))
if verification_key in self.key_verification:
self._log.error("_archive_one_file duplicate key %s" % (
verification_key, ))
bucket_accounting.increment_by("archive_success", 1)
# we count this as 'bytes in' because that's what the server counts
bucket_accounting.increment_by("success_bytes_in", size)
self.key_verification[verification_key] = \
(size, input_file.md5_digest, )
break
def _retrieve_latest(self):
# pick a random key from a random bucket
if len(self._unversioned_bucket_names) == 0:
self._log.warn(
"_retrieve_latest ignored: noun versioned buckets"
)
return
bucket_name = random.choice(self._unversioned_bucket_names)
bucket = self._buckets[bucket_name]
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
keys = bucket.get_all_keys()
bucket_accounting.increment_by("listmatch_success", 1)
if len(keys) == 0:
self._log.warn("skipping _retrieve_latest, no keys yet")
return
key = random.choice(keys)
self._log.info("retrieving %r from %r" % (
key.name, key._bucket.name,
))
output_file = MockOutputFile()
bucket_accounting.increment_by("retrieve_request", 1)
try:
key.get_contents_to_file(output_file)
except LumberyardHTTPError, instance:
bucket_accounting.increment_by("retrieve_error", 1)
if instance.status == 404:
self._log.error("%r not found in %r" % (
key.name, key._bucket.name,
))
return
raise
bucket_accounting.increment_by("retrieve_success", 1)
# we count this as 'bytes out' because that's what the server counts
bucket_accounting.increment_by("success_bytes_out",
output_file.bytes_written)
self._verify_key(bucket,
key,
output_file.bytes_written,
output_file.md5_digest)
def _retrieve_version(self):
# pick a random key from the versions of a random bucket
# XXX: this suppresses the (error?) of finding written over
# 'versions' of an unversioned file
if len(self._versioned_bucket_names) == 0:
self._log.warn(
"_retrieve_version ignored: no versioned buckets"
)
return
bucket_name = random.choice(self._versioned_bucket_names)
bucket = self._buckets[bucket_name]
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
keys = bucket.get_all_versions()
bucket_accounting.increment_by("listmatch_success", 1)
if len(keys) == 0:
self._log.warn("skipping _retrieve_version, no keys yet")
return
key = random.choice(keys)
self._log.info("retrieving %r %r from %r" % (
key.name, key.version_id, key._bucket.name,
))
output_file = MockOutputFile()
bucket_accounting.increment_by("retrieve_request", 1)
try:
key.get_contents_to_file(output_file, version_id=key.version_id)
except LumberyardHTTPError, instance:
bucket_accounting.increment_by("retrieve_error", 1)
if instance.status == 404:
self._log.error("%r not found in %r" % (
key.name, key._bucket.name,
))
return
raise
bucket_accounting.increment_by("retrieve_success", 1)
# we count this as 'bytes out' because that's what the server counts
bucket_accounting.increment_by("success_bytes_out",
output_file.bytes_written)
self._verify_key(bucket,
key,
output_file.bytes_written,
output_file.md5_digest)
def _delete_key(self):
# pick a random key from a random bucket
if len(self._unversioned_bucket_names) == 0:
self._log.warn(
"_delete_key ignored: no unversioned buckets"
)
return
bucket_name = random.choice(self._unversioned_bucket_names)
bucket = self._buckets[bucket_name]
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
keys = bucket.get_all_keys()
bucket_accounting.increment_by("listmatch_success", 1)
if len(keys) == 0:
self._log.warn("skipping _delete_key, no keys yet")
return
key = random.choice(keys)
self._log.info("_delete_key {0} {1}".format(bucket.name, key.name))
retry_count = 0
while not self._halt_event.is_set():
bucket_accounting.increment_by("delete_request", 1)
try:
key.delete()
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("delete_error", 1)
if retry_count >= _max_delete_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
else:
break
bucket_accounting.increment_by("delete_success", 1)
# if we delete a key, (not just a version)
# we need to heave every version we are holding of that key
delete_list = list()
for entry in self.key_verification.keys():
entry_bucket_name, entry_key_name, _ = entry
if entry_bucket_name == bucket.name and entry_key_name == key.name:
delete_list.append(entry)
for verification_key in delete_list:
self._log.info("_delete_key: removing {0}".format(
verification_key))
del self.key_verification[verification_key]
def _delete_version(self):
# pick a random key from the versions of a random bucket
# XXX: this suppresses the (error?) of finding written over
# 'versions' of an unversioned file
if len(self._versioned_bucket_names) == 0:
self._log.warn(
"_delete_version ignored: no versioned buckets"
)
return
bucket_name = random.choice(self._versioned_bucket_names)
bucket = self._buckets[bucket_name]
bucket_accounting = self._bucket_accounting[bucket.name]
bucket_accounting.increment_by("listmatch_request", 1)
keys = bucket.get_all_versions()
bucket_accounting.increment_by("listmatch_success", 1)
if len(keys) == 0:
self._log.warn("skipping _delete_version, no keys yet")
return
# we only want to delete a version if there are more than one versions
# otherwise we are deleting the key
version_dict = dict()
for key in keys:
if key.name in version_dict:
version_dict[key.name].append(key)
else:
version_dict[key.name] = [key, ]
keys_with_multiple_versions = list()
for key_name in version_dict.keys():
if len(version_dict[key_name]) > 1:
keys_with_multiple_versions.extend(version_dict[key_name])
if len(keys_with_multiple_versions) == 0:
self._log.warn(
"skipping _delete_version, no keys with multiple versions")
return
bucket_accounting = self._bucket_accounting[bucket.name]
key = random.choice(keys_with_multiple_versions)
verification_key = (bucket.name, key.name, key.version_id)
self._log.info("deleting version {0}".format(verification_key))
retry_count = 0
while not self._halt_event.is_set():
bucket_accounting.increment_by("delete_request", 1)
try:
key.delete(version_id=key.version_id)
except LumberyardRetryableHTTPError, instance:
bucket_accounting.increment_by("delete_error", 1)
if retry_count >= _max_delete_retries:
raise
self._log.warn("%s: retry in %s seconds" % (
instance, instance.retry_after,
))
self._halt_event.wait(timeout=instance.retry_after)
retry_count += 1
self._log.warn("retry #%s" % (retry_count, ))
else:
bucket_accounting.increment_by("delete_success", 1)
try:
del self.key_verification[verification_key]
except KeyError:
self._log.error("_delete_version missing key %s" % (
verification_key, ))
break