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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 wiredtiger, wttest
import os, shutil
from helper import compare_files
from wtbackup import backup_base
from wtdataset import simple_key
from wtscenario import make_scenarios
# test_backup11.py
# Test cursor backup with a duplicate backup cursor.
class test_backup11(backup_base):
conn_config= 'cache_size=1G,log=(enabled,file_max=100K)'
dir='backup.dir' # Backup directory name
pfx = 'test_backup'
uri="table:test"
def test_backup11(self):
self.session.create(self.uri, "key_format=S,value_format=S")
self.add_data(self.uri, 'key', 'value', True)
# Open up the backup cursor. This causes a new log file to be created.
# That log file is not part of the list returned. This is a full backup
# primary cursor with incremental configured.
os.mkdir(self.dir)
config = 'incremental=(enabled,this_id="ID1")'
bkup_c = self.session.open_cursor('backup:', None, config)
# Add data while the backup cursor is open.
self.add_data(self.uri, 'key', 'value', True)
# Now copy the files returned by the backup cursor.
orig_logs = []
while True:
ret = bkup_c.next()
if ret != 0:
break
newfile = bkup_c.get_key()
sz = os.path.getsize(newfile)
self.pr('Copy from: ' + newfile + ' (' + str(sz) + ') to ' + self.dir)
shutil.copy(newfile, self.dir)
if "WiredTigerLog" in newfile:
orig_logs.append(newfile)
self.assertEqual(ret, wiredtiger.WT_NOTFOUND)
# Now open a duplicate backup cursor.
# We *can* use a log target duplicate on an incremental primary backup so that
# a backup process can get all the log files that occur while that primary cursor
# is open.
config = 'target=("log:")'
dupc = self.session.open_cursor(None, bkup_c, config)
dup_logs = []
while True:
ret = dupc.next()
if ret != 0:
break
newfile = dupc.get_key()
self.assertTrue("WiredTigerLog" in newfile)
sz = os.path.getsize(newfile)
if (newfile not in orig_logs):
self.pr('DUP: Copy from: ' + newfile + ' (' + str(sz) + ') to ' + self.dir)
shutil.copy(newfile, self.dir)
# Record all log files returned for later verification.
dup_logs.append(newfile)
self.assertEqual(ret, wiredtiger.WT_NOTFOUND)
dupc.close()
bkup_c.close()
# Add more data
self.add_data(self.uri, 'key', 'value', True)
# Test error cases now.
# - Incremental filename must be on duplicate, not primary.
# Test this first because we currently do not have a primary open.
config = 'incremental=(file=test.wt)'
msg = "/file name can only be specified on a duplicate/"
self.pr("Specify file on primary")
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor('backup:',
None, config), 0), msg)
# Open a non-incremental full backup cursor.
# - An incremental duplicate must have an incremental primary.
self.pr("Try to open an incremental on a non-incremental primary")
bkup_c = self.session.open_cursor('backup:', None, None)
msg = "/must have an incremental primary/"
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
bkup_c.close()
config = 'incremental=(src_id="ID1",this_id="ID2")'
bkup_c = self.session.open_cursor('backup:', None, config)
self.pr("Opened backup for error testing")
# Now test all the error cases with an incremental primary open.
# - We cannot specify consolidate on the duplicate cursor.
config = 'incremental=(consolidate=true,file=test.wt)'
msg = "/consolidation can only be specified on a primary/"
self.pr("Test consolidation on a dup")
self.pr("=========")
# Test multiple duplicate backup cursors.
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
# - We cannot make multiple incremental duplcate backup cursors.
# - We cannot duplicate the duplicate backup cursor.
config = 'incremental=(file=test.wt)'
dupc = self.session.open_cursor(None, bkup_c, config)
msg = "/already a duplicate backup cursor open/"
self.pr("Test multiple dups")
self.pr("=========")
# Test multiple duplicate backup cursors.
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
# Test duplicate of duplicate backup cursor.
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
dupc, config), 0), msg)
dupc.close()
# - A duplicate cursor must specify incremental or log target.
self.pr("Test dup and file target")
self.pr("=========")
msg = "/cannot be used for/"
config = 'target=("file:test.wt")'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
# - We cannot mix block incremental with a log target on the same duplicate.
self.pr("Test mixed targets")
self.pr("=========")
config = 'incremental=(file=test.wt),target=("log:")'
msg = "/incremental backup incompatible/"
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
# - Incremental ids must be on primary, not duplicate.
self.pr("Test ids on dups")
self.pr("=========")
config = 'incremental=(src_id="ID1")'
msg = "/specified on a primary/"
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
config = 'incremental=(this_id="ID1")'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
# - Force stop must be on primary, not duplicate.
self.pr("Test force stop")
self.pr("=========")
config = 'incremental=(force_stop=true)'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.assertEquals(self.session.open_cursor(None,
bkup_c, config), 0), msg)
bkup_c.close()
# - Incremental must be opened on a primary with a source identifier.
# Open a top level backup cursor without a source id.
# Try to open an incremental cursor off this backup cursor.
self.pr("Test incremental without source identifier on primary")
self.pr("=========")
config = 'incremental=(enabled,this_id="ID3")'
bkup_c = self.session.open_cursor('backup:', None, config)
ret = bkup_c.next()
self.assertTrue(ret == 0)
newfile = bkup_c.get_key()
config = 'incremental=(file=' + newfile + ')'
msg = '/known source identifier/'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor(None, bkup_c, config), msg)
bkup_c.close()
# - Test opening a primary backup with an unknown source id.
self.pr("Test incremental with unknown source identifier on primary")
self.pr("=========")
config = 'incremental=(enabled,src_id="ID_BAD",this_id="ID4")'
self.assertRaises(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config))
# - Test opening a primary backup with an id in WiredTiger namespace.
self.pr("Test incremental with illegal src identifier using WiredTiger namespace")
self.pr("=========")
msg = '/name space may not/'
config = 'incremental=(enabled,src_id="WiredTiger.0")'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config), msg)
# - Test opening a primary backup with an id in WiredTiger namespace.
self.pr("Test incremental with illegal this identifier using WiredTiger namespace")
self.pr("=========")
config = 'incremental=(enabled,this_id="WiredTiger.ID")'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config), msg)
# - Test opening a primary backup with an id using illegal characters.
self.pr("Test incremental with illegal source identifier using illegal colon character")
self.pr("=========")
msg = '/grouping characters/'
config = 'incremental=(enabled,src_id="ID4:4.0")'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config), msg)
# - Test opening a primary backup with an id using illegal characters.
self.pr("Test incremental with illegal this identifier using illegal colon character")
self.pr("=========")
config = 'incremental=(enabled,this_id="ID4:4.0")'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config), msg)
# - Test opening a primary backup with the same source id and this id (new id).
self.pr("Test incremental with the same new source and this identifiers")
self.pr("=========")
config = 'incremental=(enabled,src_id="IDSAME",this_id="IDSAME")'
self.assertRaises(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config))
# - Test opening a primary backup with the same source id and this id (reusing id).
self.pr("Test incremental with the same re-used source and this identifiers")
self.pr("=========")
msg = '/already in use/'
config = 'incremental=(enabled,src_id="ID2",this_id="ID2")'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config), msg)
# After the full backup, open and recover the backup database.
backup_conn = self.wiredtiger_open(self.dir)
backup_conn.close()
if __name__ == '__main__':
wttest.run()
|
