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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.
import wiredtiger, wttest
from helper_tiered import TieredConfigMixin, gen_tiered_storage_sources
from wtscenario import make_scenarios
# test_alter05.py
# Check the alter command succeeds even if the file is modified.
class test_alter05(TieredConfigMixin, wttest.WiredTigerTestCase):
name = "alter05"
tiered_storage_sources = gen_tiered_storage_sources()
scenarios = make_scenarios(tiered_storage_sources)
# Setup custom connection config.
def conn_config(self):
conf = self.tiered_conn_config()
if conf != '':
conf += ','
conf += 'statistics=(all)'
return conf
def get_stat(self, stat):
stat_cursor = self.session.open_cursor('statistics:')
val = stat_cursor[stat][2]
stat_cursor.close()
return val
def verify_metadata(self, metastr):
c = self.session.open_cursor('metadata:', None, None)
# We must find a file type entry for this object and its value
# should contain the provided file meta string.
c.set_key('file:' + self.name)
self.assertNotEqual(c.search(), wiredtiger.WT_NOTFOUND)
value = c.get_value()
self.assertTrue(value.find(metastr) != -1)
c.close()
# Alter file to change the metadata and verify.
def test_alter05(self):
uri = "file:" + self.name
entries = 100
create_params = 'key_format=i,value_format=i,'
self.session.create(uri, create_params + "log=(enabled=true)")
# Pin oldest and stable to timestamp 1.
self.conn.set_timestamp('oldest_timestamp=' + self.timestamp_str(1) +
',stable_timestamp=' + self.timestamp_str(1))
# Verify the string in the metadata.
self.verify_metadata('log=(enabled=true)')
# Put some data in table.
self.session.begin_transaction()
c = self.session.open_cursor(uri, None)
for k in range(entries):
c[k+1] = 1
self.session.commit_transaction('commit_timestamp=' + self.timestamp_str(2))
c.close()
self.conn.set_timestamp('stable_timestamp=' + self.timestamp_str(2))
prev_alter_checkpoints = self.get_stat(wiredtiger.stat.conn.session_table_alter_trigger_checkpoint)
# Alter the table and verify.
self.session.alter(uri, 'log=(enabled=false)')
self.verify_metadata('log=(enabled=false)')
alter_checkpoints = self.get_stat(wiredtiger.stat.conn.session_table_alter_trigger_checkpoint)
self.assertEqual(prev_alter_checkpoints + 1, alter_checkpoints)
prev_alter_checkpoints = alter_checkpoints
# Open a cursor, insert some data and try to alter with cursor open.
c = self.session.open_cursor(uri, None)
self.session.begin_transaction()
for k in range(entries):
c[k+1] = 2
self.session.commit_transaction('commit_timestamp=' + self.timestamp_str(3))
self.conn.set_timestamp('stable_timestamp=' + self.timestamp_str(3))
self.assertRaisesException(wiredtiger.WiredTigerError,
lambda: self.session.alter(uri, 'log=(enabled=true)'))
self.verify_metadata('log=(enabled=false)')
alter_checkpoints = self.get_stat(wiredtiger.stat.conn.session_table_alter_trigger_checkpoint)
self.assertEqual(prev_alter_checkpoints + 1, alter_checkpoints)
if __name__ == '__main__':
wttest.run()
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