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#!/usr/bin/env python
#
# Public Domain 2014-2021 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.
from suite_subprocess import suite_subprocess
import wiredtiger, wttest
from wtscenario import make_scenarios
# test_util19.py
# Utilities: wt downgrade
class test_util19(wttest.WiredTigerTestCase, suite_subprocess):
tablename = 'test_util19.a'
uri = 'table:' + tablename
entries = 100
log_max = "100K"
log_latest_compat = 5
create_release = [
('def', dict(create_rel='none')),
('100', dict(create_rel="10.0")),
('33', dict(create_rel="3.3")),
('32', dict(create_rel="3.2")),
('31', dict(create_rel="3.1")),
('30', dict(create_rel="3.0")),
('26', dict(create_rel="2.6")),
]
downgrade_release = [
('100_rel', dict(downgrade_rel="10.0", log_downgrade_compat=5)),
('33_rel', dict(downgrade_rel="3.3", log_downgrade_compat=4)),
('32_rel', dict(downgrade_rel="3.2", log_downgrade_compat=3)),
('31_rel', dict(downgrade_rel="3.1", log_downgrade_compat=3)),
('30_rel', dict(downgrade_rel="3.0", log_downgrade_compat=2)),
('26_rel', dict(downgrade_rel="2.6", log_downgrade_compat=1)),
]
scenarios = make_scenarios(create_release, downgrade_release)
def conn_config(self):
conf_str = 'log=(archive=false,enabled,file_max=%s),' % self.log_max
if (self.create_rel != 'none'):
conf_str += 'compatibility=(release="%s"),' % (self.create_rel)
return conf_str
def test_downgrade(self):
"""
Run wt downgrade on our created database and test its new compatibility version.
"""
# Create the initial database at the compatibility level established by
# the connection config ('create_rel').
self.session.create(self.uri, 'key_format=S,value_format=S')
c = self.session.open_cursor(self.uri, None)
# Populate the table to generate some log files.
for i in range(self.entries):
key = 'KEY' + str(i)
val = 'VAL' + str(i)
c[key] = val
c.close()
# Call the downgrade utility to reconfigure our database with the specified compatibility version.
wt_config = 'log=(archive=false,enabled,file_max=%s),verbose=[log]' % self.log_max
downgrade_opt = '-V %s' % self.downgrade_rel
self.runWt(['-C', wt_config , 'downgrade', downgrade_opt], reopensession=False, outfilename='downgrade.out')
# Based on the downgrade version we can test if the corresponding log compatibility version
# has been set.
compat_str = '/WT_CONNECTION\.reconfigure: .*: COMPATIBILITY: Version now %d/' % self.log_downgrade_compat
if self.log_downgrade_compat != self.log_latest_compat:
self.check_file_contains('downgrade.out', compat_str)
else:
self.check_file_not_contains('downgrade.out', compat_str)
if __name__ == '__main__':
wttest.run()
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