1#!/usr/bin/env python 2# 3# Public Domain 2014-2018 MongoDB, Inc. 4# Public Domain 2008-2014 WiredTiger, Inc. 5# 6# This is free and unencumbered software released into the public domain. 7# 8# Anyone is free to copy, modify, publish, use, compile, sell, or 9# distribute this software, either in source code form or as a compiled 10# binary, for any purpose, commercial or non-commercial, and by any 11# means. 12# 13# In jurisdictions that recognize copyright laws, the author or authors 14# of this software dedicate any and all copyright interest in the 15# software to the public domain. We make this dedication for the benefit 16# of the public at large and to the detriment of our heirs and 17# successors. We intend this dedication to be an overt act of 18# relinquishment in perpetuity of all present and future rights to this 19# software under copyright law. 20# 21# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 22# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 23# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 24# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR 25# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 26# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 27# OTHER DEALINGS IN THE SOFTWARE. 28# 29# test_txn13.py 30# Test very large log records. Even with a small log file we should be 31# able to write them. Expect an error over 4Gb. 32# 33 34#import fnmatch, os, shutil, run, time 35from suite_subprocess import suite_subprocess 36from wtscenario import make_scenarios 37import wiredtiger, wttest 38 39class test_txn13(wttest.WiredTigerTestCase, suite_subprocess): 40 logmax = "100K" 41 tablename = 'test_txn13' 42 uri = 'table:' + tablename 43 nops = 1024 44 create_params = 'key_format=i,value_format=S' 45 46 scenarios = make_scenarios([ 47 ('1gb', dict(expect_err=False, valuesize=1048576)), 48 ('2gb', dict(expect_err=False, valuesize=2097152)), 49 ('4gb', dict(expect_err=True, valuesize=4194304)) 50 ]) 51 52 # Turn on logging for this test. 53 def conn_config(self): 54 return 'log=(archive=false,enabled,file_max=%s)' % self.logmax + \ 55 ',cache_size=20G' 56 57 @wttest.longtest('txn tests with huge values') 58 def test_large_values(self): 59 # print "Creating %s with config '%s'" % (self.uri, self.create_params) 60 # print "Running with %d" % (self.valuesize) 61 self.session.create(self.uri, self.create_params) 62 c = self.session.open_cursor(self.uri, None) 63 64 # We want to test very large values. Generate 'nops' records within 65 # a single transaction. 66 valuepfx = self.valuesize * 'X' 67 68 gotException = False 69 self.session.begin_transaction() 70 for k in range(self.nops): 71 value = valuepfx + str(k) 72 c[k] = value 73 74 if self.expect_err: 75 # EFBIG is expected: File too large 76 msg = '/exceeds the maximum/' 77 self.assertRaisesWithMessage(wiredtiger.WiredTigerError, 78 lambda:self.session.commit_transaction(), msg) 79 gotException = True 80 else: 81 self.session.commit_transaction() 82 83 self.assertTrue(gotException == self.expect_err) 84 85if __name__ == '__main__': 86 wttest.run() 87