1f4123e4bf
MongoClient now requires 2 connections and 2 threads to each MongoDB 4.4+ server. With one connection, the server streams (or pushes) updated heartbeat info. With the other connection, the client periodically pings the server to establish an accurate round-trip time (RTT). This change optimizes the discovery of server state changes such as replica set elections. Additional changes: - Mark server Unknown before retrying isMaster check. - Always reset the pool _after_ marking the server unknown. - Configure fail point before creating the client in test SpecRunner. - Unfreeze with replSetFreeze:0 to ensure a speedy elections in test suite.
87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
# Copyright 2014-present MongoDB, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Test the monitor module."""
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import gc
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import sys
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from functools import partial
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sys.path[0:0] = [""]
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from pymongo.periodic_executor import _EXECUTORS
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from test import unittest, IntegrationTest
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from test.utils import (connected,
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ServerAndTopologyEventListener,
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single_client,
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wait_until)
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def unregistered(ref):
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gc.collect()
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return ref not in _EXECUTORS
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def get_executors(client):
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executors = []
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for server in client._topology._servers.values():
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executors.append(server._monitor._executor)
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executors.append(server._monitor._rtt_monitor._executor)
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executors.append(client._kill_cursors_executor)
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executors.append(client._topology._Topology__events_executor)
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return [e for e in executors if e is not None]
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def create_client():
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listener = ServerAndTopologyEventListener()
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client = single_client(event_listeners=[listener])
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connected(client)
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return client
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class TestMonitor(IntegrationTest):
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def test_cleanup_executors_on_client_del(self):
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client = create_client()
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executors = get_executors(client)
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self.assertEqual(len(executors), 4)
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# Each executor stores a weakref to itself in _EXECUTORS.
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executor_refs = [
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(r, r()._name) for r in _EXECUTORS.copy() if r() in executors]
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del executors
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del client
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for ref, name in executor_refs:
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wait_until(partial(unregistered, ref),
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'unregister executor: %s' % (name,),
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timeout=5)
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def test_cleanup_executors_on_client_close(self):
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client = create_client()
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executors = get_executors(client)
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self.assertEqual(len(executors), 4)
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client.close()
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for executor in executors:
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wait_until(lambda: executor._stopped,
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'closed executor: %s' % (executor._name,),
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timeout=5)
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if __name__ == "__main__":
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unittest.main()
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