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test_load.py

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# Copyright 2013-2017 DataStax, Inc.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

try:

import unittest2 as unittest

except ImportError:

import unittest # noqa

import gc

from cassandra.cqlengine import columns

from cassandra.cqlengine.models import Model

from cassandra.cqlengine.management import sync_table

from tests.integration.cqlengine.base import BaseCassEngTestCase

class LoadTests(BaseCassEngTestCase):

def test_lots_of_queries(self):

import resource

import objgraph

class LoadTest(Model):

k = columns.Integer(primary_key=True)

v = columns.Integer()

sync_table(LoadTest)

gc.collect()

objgraph.show_most_common_types()

print("Starting...")

for i in range(1000000):

if i % 25000 == 0:

# print memory statistic

print("Memory usage: %s" % (resource.getrusage(resource.RUSAGE_SELF).ru_maxrss))

LoadTest.create(k=i, v=i)

objgraph.show_most_common_types()

raise Exception("you shouldn't be here")