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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.
import os, re
import wiredtiger, wtscenario, wttest
from wtdataset import SimpleDataSet
# test_tiered03.py
# Test block-log-structured tree configuration options.
class test_tiered03(wttest.WiredTigerTestCase):
K = 1024
M = 1024 * K
G = 1024 * M
uri = 'file:test_tiered03'
# Occasionally add a lot of records, so that merges (and bloom) happen.
record_count_scenarios = wtscenario.quick_scenarios(
'nrecs', [10, 10000], [0.9, 0.1])
scenarios = wtscenario.make_scenarios(record_count_scenarios, prune=100, prunelong=500)
# Test sharing data between a primary and a secondary
def test_sharing(self):
args = 'block_allocation=log-structured'
self.verbose(3,
'Test log-structured allocation with config: ' + args + ' count: ' + str(self.nrecs))
ds = SimpleDataSet(self, self.uri, 10, config=args)
ds.populate()
ds.check()
self.session.checkpoint()
ds.check()
# Create a secondary database
dir2 = os.path.join(self.home, 'SECONDARY')
os.mkdir(dir2)
conn2 = self.setUpConnectionOpen(dir2)
session2 = conn2.open_session()
# Reference the tree from the secondary:
metac = self.session.open_cursor('metadata:')
metac2 = session2.open_cursor('metadata:', None, 'readonly=0')
uri2 = self.uri[:5] + '../' + self.uri[5:]
metac2[uri2] = metac[self.uri] + ",readonly=1"
cursor2 = session2.open_cursor(uri2)
ds.check_cursor(cursor2)
cursor2.close()
newds = SimpleDataSet(self, self.uri, 10000, config=args)
newds.populate()
newds.check()
self.session.checkpoint()
newds.check()
# Check we can still read from the last checkpoint
cursor2 = session2.open_cursor(uri2)
ds.check_cursor(cursor2)
cursor2.close()
# Bump to new checkpoint
origmeta = metac[self.uri]
checkpoint = re.search(r',checkpoint=\(.+?\)\)', origmeta).group(0)[1:]
self.pr('Orig checkpoint: ' + checkpoint)
session2.alter(uri2, checkpoint)
self.pr('New metadata on secondaery: ' + metac2[uri2])
# Check that we can see the new data
cursor2 = session2.open_cursor(uri2)
newds.check_cursor(cursor2)
if __name__ == '__main__':
wttest.run()
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