76 lines
2.6 KiB
Python
76 lines
2.6 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import time
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import httplib2
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from glance.tests import functional
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from glance.tests.utils import execute
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class TestMultiprocessing(functional.FunctionalTest):
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"""Functional tests for the bin/glance CLI tool"""
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def setUp(self):
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self.workers = 2
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super(TestMultiprocessing, self).setUp()
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def test_multiprocessing(self):
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"""Spin up the api servers with multiprocessing on"""
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self.cleanup()
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self.start_servers(**self.__dict__.copy())
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path = "http://%s:%d/v1/images" % ("127.0.0.1", self.api_port)
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http = httplib2.Http()
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response, content = http.request(path, 'GET')
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self.assertEqual(response.status, 200)
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self.assertEqual(content, '{"images": []}')
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self.stop_servers()
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def _get_children(self):
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api_pid = open(self.api_server.pid_file).read().strip()
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cmd = ("ps --no-headers --ppid %s -o pid,cmd | "
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"grep python | " # NOTE(markwash): ignore non-python procs
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"awk '{print $1; print >> \"/dev/stderr\"}'" % api_pid)
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_, out, err = execute(cmd, raise_error=True)
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return out.strip().split('\n')
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def test_interrupt_avoids_respawn_storm(self):
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"""
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Ensure an interrupt signal does not cause a respawn storm.
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See bug #978130
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"""
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self.cleanup()
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self.start_servers(**self.__dict__.copy())
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children = self._get_children()
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cmd = "kill -INT %s" % ' '.join(children)
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execute(cmd, raise_error=True)
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for _ in range(0, 9):
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# Yeah. This totally isn't a race condition. Randomly fails
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# set at 0.05. Works most of the time at 0.10
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time.sleep(0.10)
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# ensure number of children hasn't grown
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self.assertTrue(len(children) >= len(self._get_children()))
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for child in self._get_children():
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# ensure no new children spawned
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self.assertTrue(child in children, child)
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self.stop_servers()
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