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#!/usr/bin/env python
#
# Public Domain 2014-2015 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, wtscenario, wttest
from helper import simple_populate
# test_lsm01.py
# Test LSM tree configuration options.
class test_lsm01(wttest.WiredTigerTestCase):
K = 1024
M = 1024 * K
G = 1024 * M
uri = "lsm:test_lsm01"
chunk_size_scenarios = wtscenario.quick_scenarios('s_chunk_size',
[1*M,20*M,None], [0.6,0.6,0.6])
merge_max_scenarios = wtscenario.quick_scenarios('s_merge_max',
[2,10,20,None], None)
bloom_scenarios = wtscenario.quick_scenarios('s_bloom',
[True,False,None], None)
bloom_bit_scenarios = wtscenario.quick_scenarios('s_bloom_bit_count',
[2,8,20,None], None)
bloom_hash_scenarios = wtscenario.quick_scenarios('s_bloom_hash_count',
[2,10,20,None], None)
# 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])
config_vars = [ 'chunk_size', 'merge_max', 'bloom',
'bloom_bit_count', 'bloom_hash_count' ]
all_scenarios = wtscenario.multiply_scenarios('_',
chunk_size_scenarios, merge_max_scenarios, bloom_scenarios,
bloom_bit_scenarios, bloom_hash_scenarios, record_count_scenarios)
scenarios = wtscenario.prune_scenarios(all_scenarios, 500)
scenarios = wtscenario.number_scenarios(scenarios)
# Test drop of an object.
def test_lsm(self):
args = 'key_format=S'
args += ',lsm=(' # Start the LSM configuration options.
# add names to args, e.g. args += ',session_max=30'
for var in self.config_vars:
value = getattr(self, 's_' + var)
if value != None:
if var == 'verbose':
value = '[' + str(value) + ']'
if value == True:
value = 'true'
if value == False:
value = 'false'
args += ',' + var + '=' + str(value)
args += ')' # Close the LSM configuration option group
self.verbose(3,
'Test LSM with config: ' + args + ' count: ' + str(self.nrecs))
simple_populate(self, self.uri, args, self.nrecs)
# TODO: Adding an explicit drop here can cause deadlocks, if a merge
# is still happening. See issue #349.
# self.session.drop(self.uri)
if __name__ == '__main__':
wttest.run()
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