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#!/usr/bin/env python
#
# Public Domain 2014-2020 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 fnmatch, os, time, wiredtiger, wttest
# test_debug_mode02.py
# Test the debug mode settings. Test checkpoint_retention use.
class test_debug_mode02(wttest.WiredTigerTestCase):
uri = 'file:test_debug'
entries = 100
loop = 0
retain = 5
log1 = 'WiredTigerLog.0000000001'
log2 = 'WiredTigerLog.0000000002'
def conn_config(self):
return 'log=(enabled=true,file_max=100K),debug_mode=(checkpoint_retention=%d)' % self.retain
def log_set(self):
logs = fnmatch.filter(os.listdir(self.home), "*gerLog*")
return set(logs)
def check_archive(self, logfile):
archived = False
for i in range(1,90):
# Sleep and then see if archive ran. We do this in a loop
# for slow machines. Max out at 90 seconds.
time.sleep(1.0)
if not os.path.exists(logfile):
archived = True
break
self.assertTrue(archived)
def advance_log_checkpoint(self):
# Advance the log file to the next file and write a checkpoint.
keys = range(1, self.entries)
cur_set = self.log_set()
c = self.session.open_cursor(self.uri, None)
new_set = cur_set
# Write data in small chunks until we switch log files.
while cur_set == new_set:
for k in keys:
c[k + (self.loop * self.entries)] = 1
self.loop += 1
new_set = self.log_set()
c.close()
# Write a checkpoint into the new log file.
self.session.checkpoint()
def test_checkpoint_retain(self):
self.session.create(self.uri, 'key_format=i,value_format=i')
# No log files should be archived while we have fewer than the
# retention number of logs. Make sure each iteration the new
# logs are a proper superset of the previous time.
for i in range(1, self.retain):
cur_set = self.log_set()
self.advance_log_checkpoint()
# We don't accomodate slow machines here because we don't expect
# the files the change and there is no way to know if archive ran
# otherwise.
time.sleep(1.0)
new_set = self.log_set()
self.assertTrue(new_set.issuperset(cur_set))
self.assertTrue(os.path.exists(self.log1))
self.advance_log_checkpoint()
self.check_archive(self.log1)
# Test that both zero and one archive as usual. And test reconfigure.
def test_checkpoint_retain_off(self):
self.conn.reconfigure("debug_mode=(checkpoint_retention=0)")
self.session.create(self.uri, 'key_format=i,value_format=i')
self.advance_log_checkpoint()
self.check_archive(self.log1)
self.conn.reconfigure("debug_mode=(checkpoint_retention=1)")
self.advance_log_checkpoint()
self.check_archive(self.log2)
if __name__ == '__main__':
wttest.run()
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