summaryrefslogtreecommitdiff
path: root/src/third_party/wiredtiger/test/suite/test_schema03.py
blob: ce6e368498059439a23a1cfd72529174af339d66 (plain)
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
#!/usr/bin/env python
#
# Public Domain 2014-2017 MongoDB, Inc.
# Public Domain 2008-2014 WiredTiger, Inc.
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

import os
import suite_random
import wiredtiger, wtscenario, wttest
from wtscenario import make_scenarios

try:
    # Windows does not getrlimit/setrlimit so we must catch the resource
    # module load
    import resource
except:
    None

# test_schema03.py
#    Bigger, more 'randomly generated' schemas and data.
#    This test is complex.  If it fails, rerun with modified values for
# SHOW_PYTHON* variables.
def extract_random_from_list(rand, list):
    pos = rand.rand_range(0, len(list))
    result = list[pos]
    list = list[:pos] + list[pos+1:]
    return (result, list)

class tabconfig:
    """
    Configuration for a table used in the test
    """
    def __init__(self):
        self.tableidx = -1
        self.tablename = ''
        self.cglist = []   # list of related cgconfig
        self.idxlist = []  # list of related idxconfig
        self.nkeys = 0     # how many key columns
        self.nvalues = 0   # how many value columns
        self.nentries = 0
        self.keyformats = ''
        self.valueformats = ''

    # we don't want to insert the keys in order,
    # so generate them with backwards digits e.g.
    # 235 => 532.  However, 100 backwards is 001,
    # so we append a positive integer to the end
    # before reversing.
    def gen_keys(self, i):
        addmod = i * 10 + (i % 7) + 1
        rev = int((str(addmod))[::-1])
        keys = []
        # ASSUME: each format is 1 char
        for format in self.keyformats:
            if format == 'S':
                keys.append(str(rev))
            elif format == 'i':
                keys.append(rev)
            elif format == 'r':
                keys.append(long(i+1))
        return keys

    def gen_values(self, i):
        vals = []
        # ASSUME: each format is 1 char
        for format in self.valueformats:
            if format == 'S':
                vals.append(str(i))
            elif format == 'i':
                vals.append(i)
        return vals

    def columns_for_groups(self, collist):
        totalgroups = len(self.cglist)
        ncolumns = len(collist)
        rand = suite_random.suite_random(ncolumns, totalgroups)

        # Each columngroup must have at least one column, so
        # the only choice about distribution is with the
        # excess columns.
        excess = ncolumns - totalgroups
        if excess < 0:
            raise ValueError('columns_for_groups expects a column list (len=' + str(ncolumns) + ') larger than column group list (len=' + str(totalgroups) + ')')

        # Initially, all groups get column from the collist
        for cg in self.cglist:
            (colno, collist) = extract_random_from_list(rand, collist)
            cg.columns.append(colno)

        # Then divy up remainder in the collist
        for i in range(0, excess):
            pos = rand.rand_range(0, totalgroups)
            cg = self.cglist[pos]
            (colno, collist) = extract_random_from_list(rand, collist)
            cg.columns.append(colno)

        # collist should be emptied
        if len(collist) != 0:
            raise AssertionError('column list did not get emptied')

    def columns_for_indices(self, collist):
        totalindices = len(self.idxlist)
        ncolumns = len(collist)
        startcol = 0

        # KNOWN LIMITATION: Indices should not include primary keys
        # Remove this statement when the limitation is fixed.
        #startcol = self.nkeys
        # END KNOWN LIMITATION.

        rand = suite_random.suite_random(ncolumns, totalindices)

        # Initially, all indices get one column from the collist.
        # Overlaps are allowed.  Then probabalistically, add some
        # more columns.
        for idx in self.idxlist:
            prob = 1.0
            for i in range(0, ncolumns - startcol):
                if rand.rand_float() > prob:
                    break
                colno = collist[rand.rand_range(startcol, ncolumns)]
                if not any(x == colno for x in idx.columns):
                    idx.columns.append(colno)
                    if colno < self.nkeys:
                        # ASSUME: each format is 1 char
                        idx.formats += self.keyformats[colno]
                    else:
                        # ASSUME: each format is 1 char
                        idx.formats += self.valueformats[colno - self.nkeys]
                prob *= 0.5

class cgconfig:
    """
    Configuration for a column group used in the test.
    Each tabconfig contains a list of these.
    """
    def __init__(self):
        self.cgname = ''
        self.columns = []
        self.createset = 0    # 0 or 1 depending on which set to create them.

class idxconfig:
    """
    Configuration for an index used in the test.
    Each tabconfig contains a list of these.
    """
    def __init__(self):
        self.idxname = ''
        self.columns = []
        self.createset = 0    # 0 or 1 depending on which set to create them.
        self.formats = ''     # piece
        self.tab = None       # references the tabconfig

    def gen_keys(self, i):
        keys = []
        colpos = 0
        addmod = i * 10 + (i % 7) + 1
        rev = int((str(addmod))[::-1])
        for format in self.formats:
            if self.columns[colpos] >= self.tab.nkeys:
                # The column is a value in the primary table
                key = i
            else:
                # The column is a key in the primary table
                key = rev
            if format == 'S':
                key = str(key)
            keys.append(key)
            colpos += 1
        return keys

class test_schema03(wttest.WiredTigerTestCase):
    """
    Test schemas - a 'predictably random' assortment of columns,
    column groups and indices are created within tables, and are
    created in various orders as much as the API allows.  On some runs
    the connection will be closed and reopened at a particular point
    to test that the schemas (and data) are saved and read correctly.

    The test is run multiple times, using scenarios.
    The test always follows these steps:
    - table:      create tables
    - colgroup0:  create (some) colgroups
    - index0:     create (some) indices
    - colgroup1:  create (more) colgroups
    - index1:     create (more) indices
    - populate0:  populate 1st time
    - index2:     create (more) indices
    - populate1:  populate 2nd time (more key/values)
    - check:      check key/values

    The variations represented by scenarios are:
    - how many tables to create
    - how many colgroups to create at each step (may be 0)
    - how many indices to create at each step (may be 0)
    - between each step, whether to close/reopen the connection
    """

    # Boost cache size and number of sessions for this test
    conn_config = 'cache_size=100m,session_max=1000'

    ################################################################
    # These three variables can be altered to help generate
    # and pare down failing test cases.

    # Set to true to get python test program fragment on stdout,
    # used by show_python() below.
    SHOW_PYTHON = False

    # When SHOW_PYTHON is set, we print an enormous amount of output.
    # To only print for a given scenario, set this
    SHOW_PYTHON_ONLY_SCEN = None  # could be e.g. [2] or [0,1]

    # To print verbosely for only a given table, set this
    SHOW_PYTHON_ONLY_TABLE = None # could be e.g. [2] or [0,1]

    ################################################################

    # Set whenever we are working with a table
    current_table = None

    nentries = 50

    # We need to have a large number of open files available
    # to run this test.  We probably don't need quite this many,
    # but boost it up to this limit anyway.
    OPEN_FILE_LIMIT = 1000

    restart_scenarios = [('table', dict(s_restart=['table'],P=0.3)),
                         ('colgroup0', dict(s_restart=['colgroup0'],P=0.3)),
                         ('index0', dict(s_restart=['index0'],P=0.3)),
                         ('colgroup1', dict(s_restart=['colgroup1'],P=0.3)),
                         ('index1', dict(s_restart=['index1'],P=0.3)),
                         ('populate0', dict(s_restart=['populate0'],P=0.3)),
                         ('index2', dict(s_restart=['index2'],P=0.3)),
                         ('populate1', dict(s_restart=['populate1'],P=0.3)),
                         ('ipop', dict(s_restart=['index0','populate0'],P=0.3)),
                         ('all', dict(s_restart=['table','colgroup0','index0','colgroup1','index1','populate0','index2','populate1'],P=1.0)),
    ]

    ntable_scenarios = wtscenario.quick_scenarios('s_ntable',
        [1,2,5,8], [1.0,0.4,0.5,0.5])
    ncolgroup_scenarios = wtscenario.quick_scenarios('s_colgroup',
        [[1,0],[0,1],[2,4],[8,5]], [1.0,0.2,0.3,1.0])
    nindex_scenarios = wtscenario.quick_scenarios('s_index',
        [[1,1,1],[3,2,1],[5,1,3]], [1.0,0.5,1.0])
    idx_args_scenarios = wtscenario.quick_scenarios('s_index_args',
        ['', ',type=file', ',type=lsm'], [0.5, 0.3, 0.2])
    table_args_scenarios = wtscenario.quick_scenarios('s_extra_table_args',
        ['', ',type=file', ',type=lsm'], [0.5, 0.3, 0.2])

    scenarios = wtscenario.make_scenarios(
        restart_scenarios, ntable_scenarios, ncolgroup_scenarios,
        nindex_scenarios, idx_args_scenarios, table_args_scenarios,
        prune=30)

    # Note: the set can be reduced here for debugging, e.g.
    # scenarios = scenarios[40:44]
    #   or
    # scenarios = [ scenarios[0], scenarios[30], scenarios[40] ]

    #wttest.WiredTigerTestCase.printVerbose(2, 'test_schema03: running ' + \
    #                      str(len(scenarios)) + ' of ' + \
    #                      str(len(all_scenarios)) + ' possible scenarios')

    # This test requires a large number of open files.
    # Increase our resource limits before we start
    def setUp(self):
        if os.name == "nt":
            self.skipTest('Unix specific test skipped on Windows')

        self.origFileLimit = resource.getrlimit(resource.RLIMIT_NOFILE)
        newlimit = (self.OPEN_FILE_LIMIT, self.origFileLimit[1])
        if newlimit[0] > newlimit[1]:
            self.skipTest('Require %d open files, only %d available' % newlimit)
        resource.setrlimit(resource.RLIMIT_NOFILE, newlimit)
        super(test_schema03, self).setUp()

    def tearDown(self):
        super(test_schema03, self).tearDown()
        resource.setrlimit(resource.RLIMIT_NOFILE, self.origFileLimit)

    def gen_formats(self, rand, n, iskey):
        result = ''
        for i in range(0, n):
            if rand.rand_range(0, 2) == 0:
                result += 'S'
            else:
                result += 'i'
        return result

    def show_python(self, s):
        if self.SHOW_PYTHON:
            if self.SHOW_PYTHON_ONLY_TABLE == None or self.current_table in self.SHOW_PYTHON_ONLY_TABLE:
                if self.SHOW_PYTHON_ONLY_SCEN == None or self.scenario_number in self.SHOW_PYTHON_ONLY_SCEN:
                    print '        ' + s

    def join_names(self, sep, prefix, list):
        return sep.join([prefix + str(val) for val in list])

    def create(self, what, tablename, whatname, columnlist, extra_args=''):
        createarg = what + ":" + tablename + ":" + whatname
        colarg = self.join_names(',', 'c', columnlist)
        self.show_python("self.session.create('" + createarg + "', 'columns=(" + colarg + ")" + extra_args + "')")
        result = self.session.create(createarg,
                "columns=(" + colarg + ")" + extra_args)
        self.assertEqual(result, 0)

    def finished_step(self, name):
        if self.s_restart == name:
            print "  # Reopening connection at step: " + name
            self.reopen_conn()

    def test_schema(self):
        rand = suite_random.suite_random()
        if self.SHOW_PYTHON:
            print '  ################################################'
            print '  # Running scenario ' + str(self.scenario_number)

        ntables = self.s_ntable

        # Report known limitations in the test,
        # we'll work around these later, in a loop where we don't want to print.
        self.KNOWN_LIMITATION('Column groups created after indices confuses things')

        # Column groups are created in two different times.
        # We call these two batches 'createsets'.
        # So we don't have the exactly the same number of column groups
        # for each table, for tests that indicate >1 colgroup, we
        # increase the number of column groups for each table
        tabconfigs = []
        for i in range(0, ntables):
            self.current_table = i
            tc = tabconfig()
            tc.tablename = 't' + str(i)
            tc.tableidx = i
            tabconfigs.append(tc)

            for createset in range(0, 2):
                ncg = self.s_colgroup[createset]
                if ncg > 1:
                    ncg += i
                for k in range(0, ncg):
                    thiscg = cgconfig()
                    thiscg.createset = createset

                    # KNOWN LIMITATION: Column groups created after
                    # indices confuses things.  So for now, put all
                    # column group creation in the first set.
                    # Remove this statement when the limitation is fixed.
                    thiscg.createset = 0
                    # END KNOWN LIMITATION

                    thiscg.cgname = 'g' + str(len(tc.cglist))
                    tc.cglist.append(thiscg)

            # The same idea for indices, except that we create them in
            # three sets
            for createset in range(0, 3):
                nindex = self.s_index[createset]
                if nindex > 1:
                    nindex += i
                for k in range(0, nindex):
                    thisidx = idxconfig()
                    thisidx.createset = createset
                    thisidx.idxname = 'i' + str(len(tc.idxlist))
                    thisidx.tab = tc
                    tc.idxlist.append(thisidx)

            # We'll base the number of key/value columns
            # loosely on the number of column groups and indices.

            colgroups = len(tc.cglist)
            indices = len(tc.idxlist)
            nall = colgroups * 2 + indices
            k = rand.rand_range(1, nall)
            v = rand.rand_range(0, nall)
            # we need at least one value per column group
            if v < colgroups:
                v = colgroups
            tc.nkeys = k
            tc.nvalues = v
            tc.keyformats = self.gen_formats(rand, tc.nkeys, True)
            tc.valueformats = self.gen_formats(rand, tc.nvalues, False)

            # Simple naming (we'll test odd naming elsewhere):
            #  tables named 't0' --> 't<N>'
            #  within each table:
            #     columns named 'c0' --> 'c<N>'
            #     colgroups named 'g0' --> 'g<N>'
            #     indices named 'i0' --> 'i<N>'

            config = ""
            config += "key_format=" + tc.keyformats
            config += ",value_format=" + tc.valueformats
            config += ",columns=("
            for j in range(0, tc.nkeys + tc.nvalues):
                if j != 0:
                    config += ","
                config += "c" + str(j)
            config += "),colgroups=("
            for j in range(0, len(tc.cglist)):
                if j != 0:
                    config += ","
                config += "g" + str(j)
            config += ")"
            config += self.s_extra_table_args
            # indices are not declared here
            self.show_python("self.session.create('table:" + tc.tablename + "', '" + config + "')")
            self.session.create("table:" + tc.tablename, config)

            tc.columns_for_groups(range(tc.nkeys, tc.nkeys + tc.nvalues))
            tc.columns_for_indices(range(0, tc.nkeys + tc.nvalues))

        self.finished_step('table')

        for createset in (0, 1):
            # Create column groups in this set
            # e.g. self.session.create("colgroup:t0:g1", "columns=(c3,c4)")
            for tc in tabconfigs:
                self.current_table = tc.tableidx
                for cg in tc.cglist:
                    if cg.createset == createset:
                        self.create('colgroup', tc.tablename, cg.cgname, cg.columns)

            self.finished_step('colgroup' + str(createset))

            # Create indices in this set
            # e.g. self.session.create("index:t0:i1", "columns=(c3,c4)")
            for tc in tabconfigs:
                self.current_table = tc.tableidx
                for idx in tc.idxlist:
                    if idx.createset == createset:
                        self.create('index', tc.tablename, idx.idxname, idx.columns, self.s_index_args)

            self.finished_step('index' + str(createset))

        # populate first batch
        for tc in tabconfigs:
            self.current_table = tc.tableidx
            max = rand.rand_range(0, self.nentries)
            self.populate(tc, xrange(0, max))

        self.finished_step('populate0')

        # Create indices in third set
        for tc in tabconfigs:
            for idx in tc.idxlist:
                if idx.createset == 2:
                    self.create('index', tc.tablename, idx.idxname, idx.columns)

        self.finished_step('index2')

        # populate second batch
        for tc in tabconfigs:
            self.current_table = tc.tableidx
            self.populate(tc, xrange(tc.nentries, self.nentries))

        self.finished_step('populate1')

        for tc in tabconfigs:
            self.current_table = tc.tableidx
            self.check_entries(tc)

    def populate(self, tc, insertrange):
        self.show_python("cursor = self.session.open_cursor('table:" + tc.tablename + "', None, None)")
        cursor = self.session.open_cursor('table:' + tc.tablename, None, None)
        for i in insertrange:
            key = tc.gen_keys(i)
            val = tc.gen_values(i)
            self.show_python("cursor.set_key(*" + str(key) + ")")
            cursor.set_key(*key)
            self.show_python("cursor.set_value(*" + str(val) + ")")
            cursor.set_value(*val)
            self.show_python("cursor.insert()")
            cursor.insert()
            tc.nentries += 1
        self.show_python("cursor.close()")
        cursor.close()

    def check_one(self, name, cursor, key, val):
        keystr = str(key)
        valstr = str(val)
        self.show_python('# search[' + name + '](' + keystr + ')')
        self.show_python("cursor.set_key(*" + keystr + ")")
        cursor.set_key(*key)
        self.show_python("ok = cursor.search()")
        ok = cursor.search()
        self.show_python("self.assertEqual(ok, 0)")
        self.assertEqual(ok, 0)
        self.show_python("self.assertEqual(" + keystr + ", cursor.get_keys())")
        self.assertEqual(key, cursor.get_keys())
        self.show_python("self.assertEqual(" + valstr + ", cursor.get_values())")
        self.assertEqual(val, cursor.get_values())

    def check_entries(self, tc):
        """
        Verify entries in the primary and index table
        related to the tabconfig.
        """
        self.show_python('# check_entries: ' + tc.tablename)
        self.show_python("cursor = self.session.open_cursor('table:" + tc.tablename + "', None, None)")
        cursor = self.session.open_cursor('table:' + tc.tablename, None, None)
        count = 0
        for x in cursor:
            count += 1
        self.assertEqual(count, tc.nentries)
        for i in range(0, tc.nentries):
            key = tc.gen_keys(i)
            val = tc.gen_values(i)
            self.check_one(tc.tablename, cursor, key, val)
        cursor.close()
        self.show_python("cursor.close()")

        # for each index, check each entry
        for idx in tc.idxlist:
            # Although it's possible to open an index on some partial
            # list of columns, we'll keep it simple here, and always
            # use all columns.
            full_idxname = 'index:' + tc.tablename + ':' + idx.idxname
            cols = '(' + ','.join([('c' + str(x)) for x in range(tc.nkeys, tc.nvalues + tc.nkeys)]) + ')'
            self.show_python('# check_entries: ' + full_idxname + cols)
            self.show_python("cursor = self.session.open_cursor('" + full_idxname + cols + "', None, None)")
            cursor = self.session.open_cursor(full_idxname + cols, None, None)
            count = 0
            for x in cursor:
                count += 1
            self.assertEqual(count, tc.nentries)
            for i in range(0, tc.nentries):
                key = idx.gen_keys(i)
                val = tc.gen_values(i)
                self.check_one(full_idxname, cursor, key, val)
            cursor.close()
            self.show_python("cursor.close()")
if __name__ == '__main__':
    wttest.run()