diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/suite/test_durability01.py')
-rw-r--r-- | src/third_party/wiredtiger/test/suite/test_durability01.py | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_durability01.py b/src/third_party/wiredtiger/test/suite/test_durability01.py new file mode 100644 index 00000000000..f578a79baf1 --- /dev/null +++ b/src/third_party/wiredtiger/test/suite/test_durability01.py @@ -0,0 +1,79 @@ +#!/usr/bin/env python +# +# Public Domain 2014-2016 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. +# +# test_durability01.py +# Durability: make sure the metadata is stable after exclusive operations +# cause files to be closed. +# + +import fnmatch, os, shutil, time +from helper import copy_wiredtiger_home +from suite_subprocess import suite_subprocess +from wtscenario import multiply_scenarios, number_scenarios, prune_scenarios +import wttest + +class test_durability01(wttest.WiredTigerTestCase, suite_subprocess): + uri = 'table:test_durability01' + create_params = 'key_format=i,value_format=i' + + def check_crash_restart(self, olddir, newdir): + ''' Simulate a crash from olddir and restart in newdir. ''' + # with the connection still open, copy files to new directory + copy_wiredtiger_home(olddir, newdir) + + # Open the new directory + conn = self.setUpConnectionOpen(newdir) + session = self.setUpSessionOpen(conn) + session.verify(self.uri) + conn.close() + + def test_durability(self): + '''Check for missing metadata checkpoints''' + + # Here's the strategy: + # - update the table + # - verify, which causes the table to be flushed + # - copy the database directory (live, simulating a crash) + # - verify in the copy + # - repeat + # + # If the metadata isn't flushed, eventually the metadata we copy will + # be sufficiently out-of-sync with the data file that it won't verify. + self.session.create(self.uri, self.create_params) + for i in range(100): + c = self.session.open_cursor(self.uri) + c[i] = i + c.close() + if i % 5 == 0: + self.session.checkpoint() + else: + self.session.verify(self.uri) + self.check_crash_restart(".", "RESTART") + +if __name__ == '__main__': + wttest.run() |