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 python-647

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future_batches.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.

import logging

from base import benchmark, BenchmarkThread

from six.moves import queue

log = logging.getLogger(__name__)

class Runner(BenchmarkThread):

def run(self):

futures = queue.Queue(maxsize=121)

self.start_profile()

for i in range(self.num_queries):

if i > 0 and i % 120 == 0:

# clear the existing queue

while True:

try:

futures.get_nowait().result()

except queue.Empty:

break

key = "{0}-{1}".format(self.thread_num, i)

future = self.run_query(key)

futures.put_nowait(future)

while True:

try:

futures.get_nowait().result()

except queue.Empty:

break

self.finish_profile()

if __name__ == "__main__":

benchmark(Runner)