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#!/usr/bin/env python
#
# Public Domain 2014-present 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_compat01.py
# Check compatibility API
import fnmatch, os
import wiredtiger, wttest
from suite_subprocess import suite_subprocess
from wtdataset import SimpleDataSet
from wtscenario import make_scenarios
class test_compat01(wttest.WiredTigerTestCase, suite_subprocess):
# Add enough entries and use a small log size to generate more than
# one log file.
entries = 2000
logmax = "100K"
tablename = 'test_compat01'
uri = 'table:' + tablename
# Declare the log versions that do and do not have prevlsn.
# Log version 1 does not have the prevlsn record.
# Log version 2 introduced that record.
# Log versions 3 and higher continue to have that record.
min_logv = 2
latest_logv = 5
# The API uses only the major and minor numbers but accepts with
# and without the patch number. Test both.
start_compat = [
('def', dict(compat1='none', logv1=5)),
('110', dict(compat1='11.0', logv1=5)),
('100', dict(compat1='10.0', logv1=5)),
('33', dict(compat1='3.3', logv1=4)),
('32', dict(compat1='3.2', logv1=3)),
('31', dict(compat1="3.1", logv1=3)),
('30', dict(compat1="3.0", logv1=2)),
('30_patch', dict(compat1="3.0.0", logv1=2)),
('26', dict(compat1="2.6", logv1=1)),
('old', dict(compat1="1.8", logv1=1)),
('old_patch', dict(compat1="1.8.1", logv1=1)),
]
restart_compat = [
('def2', dict(compat2='none', logv2=5)),
('110_2', dict(compat2='11.0', logv2=5)),
('100_2', dict(compat2='10.0', logv2=5)),
('33_2', dict(compat2='3.3', logv2=4)),
('32_2', dict(compat2='3.2', logv2=3)),
('31_2', dict(compat2="3.1", logv2=3)),
('30_2', dict(compat2="3.0", logv2=2)),
('30_patch2', dict(compat2="3.0.0", logv2=2)),
('26_2', dict(compat2="2.6", logv2=1)),
('old2', dict(compat2="1.8", logv2=1)),
('old_patch2', dict(compat2="1.8.1", logv2=1)),
]
scenarios = make_scenarios(restart_compat, start_compat)
def make_compat_str(self, create):
compat_str = ''
if (create == True and self.compat1 != 'none'):
#compat_str = 'verbose=(temporary),compatibility=(release="%s"),' % self.compat1
compat_str = 'compatibility=(release="%s"),' % self.compat1
elif (create == False and self.compat2 != 'none'):
#compat_str = 'verbose=(temporary),compatibility=(release="%s"),' % self.compat2
compat_str = 'compatibility=(release="%s"),' % self.compat2
return compat_str
def conn_config(self):
# Set remove=false on the home directory.
log_str = 'log=(enabled,file_max=%s,remove=false),' % self.logmax
compat_str = self.make_compat_str(True)
self.pr("Conn config:" + log_str + compat_str)
return log_str + compat_str
def check_prev_lsn(self, exists, conn_close):
#
# Run printlog and look for the prev_lsn log record. Verify its
# existence with the passed in expected result. We don't use
# check_file_contains because that only looks in the first 100K and
# we don't know how big our text-based log output is. Look through
# the entire file if needed and set a boolean for comparison.
#
self.runWt(['printlog'], outfilename='printlog.out', closeconn=conn_close)
contains = False
with open('printlog.out') as logfile:
for line in logfile:
if 'optype' in line and 'prev_lsn' in line:
contains = True
break
self.assertEqual(exists, contains)
def check_log(self, reconfig):
orig_logs = fnmatch.filter(os.listdir('.'), "*gerLog*")
compat_str = self.make_compat_str(False)
if not reconfig:
#
# Close and open the connection to force recovery and log removal
# even if remove is turned off (in some circumstances). If we are
# downgrading we must remove newer logs. Verify the log files
# have or have not been removed.
#
exist = True
if self.logv1 < self.min_logv:
exist = False
self.check_prev_lsn(exist, True)
self.conn.close()
log_str = 'log=(enabled,file_max=%s,remove=false),' % self.logmax
restart_config = log_str + compat_str
self.pr("Restart conn " + restart_config)
#
# Open a connection to force it to run recovery.
#
conn = self.wiredtiger_open('.', restart_config)
conn.close()
check_close = False
else:
self.pr("Reconfigure: " + compat_str)
self.conn.reconfigure(compat_str)
check_close = True
#
# Removal is turned off explicitly.
#
# Check logs. The original logs should have been removed only if
# we downgraded. In all other cases the original logs should be there.
# Downgrade means not running the latest possible log version, not
# the difference between original and current.
cur_logs = fnmatch.filter(os.listdir('.'), "*Log*")
log_present = True
if self.logv1 != self.logv2 and self.logv2 != self.latest_logv:
log_present = False
for o in orig_logs:
self.assertEqual(log_present, o in cur_logs)
# Run printlog and verify the new record does or does not exist.
exist = True
if self.logv2 < self.min_logv:
exist = False
self.check_prev_lsn(exist, check_close)
def run_test(self, reconfig):
# If reconfiguring with the empty string there is nothing to do.
if reconfig == True and self.compat2 == 'none':
return
self.session.create(self.uri, 'key_format=i,value_format=i')
c = self.session.open_cursor(self.uri, None)
#
# Add some entries to generate log files.
#
for i in range(self.entries):
c[i] = i + 1
c.close()
# Check the log state after the entire op completes
# and run recovery with the restart compatibility mode.
self.check_log(reconfig)
# Run the same test but reset the compatibility via
# reconfigure or changing it when reopening the connection.
def test_reconfig(self):
self.run_test(True)
def test_restart(self):
self.run_test(False)
class test_reconfig_fail(wttest.WiredTigerTestCase):
# Test an active transaction blocks upgrade/downgrade configuration.
def test_reconfig_fail(self):
uri = 'table:reconfig_fail'
ds = SimpleDataSet(self, uri, 100, key_format='S')
ds.populate()
# Reconfigure to an older version.
compat_str = 'compatibility=(release="2.6")'
self.conn.reconfigure(compat_str)
self.session.begin_transaction()
c = self.session.open_cursor(uri, None)
c.set_key(ds.key(20))
c.set_value("abcde")
self.assertEquals(c.update(), 0)
# Make sure we can reconfigure unrelated things while downgraded
# and we have an active transaction.
self.conn.reconfigure("cache_size=100M")
compat_str = 'compatibility=(release="3.0.0")'
msg = '/system must be quiescent/'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.conn.reconfigure(compat_str), msg)
if __name__ == '__main__':
wttest.run()
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