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#!/usr/bin/env python
#
# Public Domain 2016-2016 MongoDB, Inc.
# Public Domain 2008-2016 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_readonly02.py
# Readonly: Test readonly mode with illegal config combinations
# and error checking during updates.
#
from helper import copy_wiredtiger_home
from suite_subprocess import suite_subprocess
import os, wiredtiger, wttest
class test_readonly02(wttest.WiredTigerTestCase, suite_subprocess):
tablename = 'table:test_readonly02'
create = True
create_params = 'key_format=i,value_format=i'
entries = 10
conn_params = \
'create,statistics=(fast),log=(enabled,file_max=100K,zero_fill=true),'
conn_params_rd = \
'create,readonly=true,statistics=(fast),log=(enabled,zero_fill=false),'
conn_params_rdcfg = \
'create,readonly=true,statistics=(fast),log=(enabled),'
#
# Run to make sure incompatible configuration options return an error.
# The situations that cause failures (instead of silent overrides) are:
# 1. setting readonly on a new database directory
# 2. an unclean shutdown and reopening readonly
# 3. logging with zero-fill enabled and readonly
#
badcfg1 = 'log=(enabled,zero_fill=true)'
def setUpConnectionOpen(self, dir):
self.home = dir
rdonlydir = dir + '.rdonly'
#
# First time through check readonly on a non-existent database.
#
if self.create:
# 1. setting readonly on a new database directory
# Setting readonly prevents creation so we should see an
# error because the lock file does not exist.
msg = '/No such file/'
if os.name != 'posix':
msg = '/cannot find the file/'
os.mkdir(rdonlydir)
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.wiredtiger_open(
rdonlydir, self.conn_params_rd), msg)
self.create = False
conn = self.wiredtiger_open(dir, self.conn_params)
return conn
def check_unclean(self):
backup = "WT_COPYDIR"
copy_wiredtiger_home(self.home, backup, True)
msg = '/needs recovery/'
# 2. an unclean shutdown and reopening readonly
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.wiredtiger_open(backup, self.conn_params_rd), msg)
def close_checkerror(self, cfg):
''' Close the connection and reopen readonly'''
#
# Close the original connection. Reopen readonly and also with
# the given configuration string.
#
self.close_conn()
conn_params = self.conn_params_rd + cfg
msg = '/Invalid argument/'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.wiredtiger_open(self.home, conn_params), msg)
def test_readonly(self):
tablearg = self.tablename
self.session.create(tablearg, self.create_params)
c = self.session.open_cursor(tablearg, None, None)
for i in range(self.entries):
c[i+1] = i % 255
# Check for an error on an unclean recovery/restart.
self.check_unclean()
# Close the connection. Reopen readonly with other bad settings.
# 3. logging with zero-fill enabled and readonly
self.close_checkerror(self.badcfg1)
if __name__ == '__main__':
wttest.run()
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