275 lines
9.8 KiB
Python
275 lines
9.8 KiB
Python
# Copyright 2019-present MongoDB, 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.
|
|
|
|
"""Test retryable reads spec."""
|
|
from __future__ import annotations
|
|
|
|
import os
|
|
import pprint
|
|
import sys
|
|
import threading
|
|
|
|
from bson import SON
|
|
from pymongo.errors import AutoReconnect
|
|
|
|
sys.path[0:0] = [""]
|
|
|
|
from test import (
|
|
IntegrationTest,
|
|
PyMongoTestCase,
|
|
client_context,
|
|
client_knobs,
|
|
unittest,
|
|
)
|
|
from test.utils import (
|
|
CMAPListener,
|
|
EventListener,
|
|
OvertCommandListener,
|
|
SpecTestCreator,
|
|
rs_client,
|
|
rs_or_single_client,
|
|
set_fail_point,
|
|
)
|
|
from test.utils_spec_runner import SpecRunner
|
|
|
|
from pymongo.mongo_client import MongoClient
|
|
from pymongo.monitoring import (
|
|
ConnectionCheckedOutEvent,
|
|
ConnectionCheckOutFailedEvent,
|
|
ConnectionCheckOutFailedReason,
|
|
PoolClearedEvent,
|
|
)
|
|
from pymongo.write_concern import WriteConcern
|
|
|
|
# Location of JSON test specifications.
|
|
_TEST_PATH = os.path.join(os.path.dirname(os.path.realpath(__file__)), "retryable_reads", "legacy")
|
|
|
|
|
|
class TestClientOptions(PyMongoTestCase):
|
|
def test_default(self):
|
|
client = MongoClient(connect=False)
|
|
self.assertEqual(client.options.retry_reads, True)
|
|
|
|
def test_kwargs(self):
|
|
client = MongoClient(retryReads=True, connect=False)
|
|
self.assertEqual(client.options.retry_reads, True)
|
|
client = MongoClient(retryReads=False, connect=False)
|
|
self.assertEqual(client.options.retry_reads, False)
|
|
|
|
def test_uri(self):
|
|
client = MongoClient("mongodb://h/?retryReads=true", connect=False)
|
|
self.assertEqual(client.options.retry_reads, True)
|
|
client = MongoClient("mongodb://h/?retryReads=false", connect=False)
|
|
self.assertEqual(client.options.retry_reads, False)
|
|
|
|
|
|
class TestSpec(SpecRunner):
|
|
RUN_ON_LOAD_BALANCER = True
|
|
RUN_ON_SERVERLESS = True
|
|
|
|
@classmethod
|
|
@client_context.require_failCommand_fail_point
|
|
# TODO: remove this once PYTHON-1948 is done.
|
|
@client_context.require_no_mmap
|
|
def setUpClass(cls):
|
|
super().setUpClass()
|
|
|
|
def maybe_skip_scenario(self, test):
|
|
super().maybe_skip_scenario(test)
|
|
skip_names = ["listCollectionObjects", "listIndexNames", "listDatabaseObjects"]
|
|
for name in skip_names:
|
|
if name.lower() in test["description"].lower():
|
|
self.skipTest(f"PyMongo does not support {name}")
|
|
|
|
# Serverless does not support $out and collation.
|
|
if client_context.serverless:
|
|
for operation in test["operations"]:
|
|
if operation["name"] == "aggregate":
|
|
for stage in operation["arguments"]["pipeline"]:
|
|
if "$out" in stage:
|
|
self.skipTest("MongoDB Serverless does not support $out")
|
|
if "collation" in operation["arguments"]:
|
|
self.skipTest("MongoDB Serverless does not support collations")
|
|
|
|
# Skip changeStream related tests on MMAPv1 and serverless.
|
|
test_name = self.id().rsplit(".")[-1]
|
|
if "changestream" in test_name.lower():
|
|
if client_context.storage_engine == "mmapv1":
|
|
self.skipTest("MMAPv1 does not support change streams.")
|
|
if client_context.serverless:
|
|
self.skipTest("Serverless does not support change streams.")
|
|
|
|
def get_scenario_coll_name(self, scenario_def):
|
|
"""Override a test's collection name to support GridFS tests."""
|
|
if "bucket_name" in scenario_def:
|
|
return scenario_def["bucket_name"]
|
|
return super().get_scenario_coll_name(scenario_def)
|
|
|
|
def setup_scenario(self, scenario_def):
|
|
"""Override a test's setup to support GridFS tests."""
|
|
if "bucket_name" in scenario_def:
|
|
data = scenario_def["data"]
|
|
db_name = self.get_scenario_db_name(scenario_def)
|
|
db = client_context.client[db_name]
|
|
# Create a bucket for the retryable reads GridFS tests with as few
|
|
# majority writes as possible.
|
|
wc = WriteConcern(w="majority")
|
|
if data:
|
|
db["fs.chunks"].drop()
|
|
db["fs.files"].drop()
|
|
db["fs.chunks"].insert_many(data["fs.chunks"])
|
|
db.get_collection("fs.files", write_concern=wc).insert_many(data["fs.files"])
|
|
else:
|
|
db.get_collection("fs.chunks").drop()
|
|
db.get_collection("fs.files", write_concern=wc).drop()
|
|
else:
|
|
super().setup_scenario(scenario_def)
|
|
|
|
|
|
def create_test(scenario_def, test, name):
|
|
@client_context.require_test_commands
|
|
def run_scenario(self):
|
|
self.run_scenario(scenario_def, test)
|
|
|
|
return run_scenario
|
|
|
|
|
|
test_creator = SpecTestCreator(create_test, TestSpec, _TEST_PATH)
|
|
test_creator.create_tests()
|
|
|
|
|
|
class FindThread(threading.Thread):
|
|
def __init__(self, collection):
|
|
super().__init__()
|
|
self.daemon = True
|
|
self.collection = collection
|
|
self.passed = False
|
|
|
|
def run(self):
|
|
self.collection.find_one({})
|
|
self.passed = True
|
|
|
|
|
|
class TestPoolPausedError(IntegrationTest):
|
|
# Pools don't get paused in load balanced mode.
|
|
RUN_ON_LOAD_BALANCER = False
|
|
RUN_ON_SERVERLESS = False
|
|
|
|
@client_context.require_failCommand_blockConnection
|
|
@client_knobs(heartbeat_frequency=0.05, min_heartbeat_interval=0.05)
|
|
def test_pool_paused_error_is_retryable(self):
|
|
if "PyPy" in sys.version:
|
|
# Tracked in PYTHON-3519
|
|
self.skipTest("Test is flakey on PyPy")
|
|
cmap_listener = CMAPListener()
|
|
cmd_listener = OvertCommandListener()
|
|
client = rs_or_single_client(maxPoolSize=1, event_listeners=[cmap_listener, cmd_listener])
|
|
self.addCleanup(client.close)
|
|
for _ in range(10):
|
|
cmap_listener.reset()
|
|
cmd_listener.reset()
|
|
threads = [FindThread(client.pymongo_test.test) for _ in range(2)]
|
|
fail_command = {
|
|
"mode": {"times": 1},
|
|
"data": {
|
|
"failCommands": ["find"],
|
|
"blockConnection": True,
|
|
"blockTimeMS": 1000,
|
|
"errorCode": 91,
|
|
},
|
|
}
|
|
with self.fail_point(fail_command):
|
|
for thread in threads:
|
|
thread.start()
|
|
for thread in threads:
|
|
thread.join()
|
|
for thread in threads:
|
|
self.assertTrue(thread.passed)
|
|
|
|
# It's possible that SDAM can rediscover the server and mark the
|
|
# pool ready before the thread in the wait queue has a chance
|
|
# to run. Repeat the test until the thread actually encounters
|
|
# a PoolClearedError.
|
|
if cmap_listener.event_count(ConnectionCheckOutFailedEvent):
|
|
break
|
|
|
|
# Via CMAP monitoring, assert that the first check out succeeds.
|
|
cmap_events = cmap_listener.events_by_type(
|
|
(ConnectionCheckedOutEvent, ConnectionCheckOutFailedEvent, PoolClearedEvent)
|
|
)
|
|
msg = pprint.pformat(cmap_listener.events)
|
|
self.assertIsInstance(cmap_events[0], ConnectionCheckedOutEvent, msg)
|
|
self.assertIsInstance(cmap_events[1], PoolClearedEvent, msg)
|
|
self.assertIsInstance(cmap_events[2], ConnectionCheckOutFailedEvent, msg)
|
|
self.assertEqual(cmap_events[2].reason, ConnectionCheckOutFailedReason.CONN_ERROR, msg)
|
|
self.assertIsInstance(cmap_events[3], ConnectionCheckedOutEvent, msg)
|
|
|
|
# Connection check out failures are not reflected in command
|
|
# monitoring because we only publish command events _after_ checking
|
|
# out a connection.
|
|
started = cmd_listener.started_events
|
|
msg = pprint.pformat(cmd_listener.results)
|
|
self.assertEqual(3, len(started), msg)
|
|
succeeded = cmd_listener.succeeded_events
|
|
self.assertEqual(2, len(succeeded), msg)
|
|
failed = cmd_listener.failed_events
|
|
self.assertEqual(1, len(failed), msg)
|
|
|
|
|
|
class TestRetryableReads(IntegrationTest):
|
|
@client_context.require_multiple_mongoses
|
|
@client_context.require_failCommand_fail_point
|
|
def test_retryable_reads_in_sharded_cluster_multiple_available(self):
|
|
fail_command = {
|
|
"configureFailPoint": "failCommand",
|
|
"mode": {"times": 1},
|
|
"data": {
|
|
"failCommands": ["find"],
|
|
"closeConnection": True,
|
|
"appName": "retryableReadTest",
|
|
},
|
|
}
|
|
|
|
mongos_clients = []
|
|
|
|
for mongos in client_context.mongos_seeds().split(","):
|
|
client = rs_or_single_client(mongos)
|
|
set_fail_point(client, fail_command)
|
|
self.addCleanup(client.close)
|
|
mongos_clients.append(client)
|
|
|
|
listener = OvertCommandListener()
|
|
client = rs_or_single_client(
|
|
client_context.mongos_seeds(),
|
|
appName="retryableReadTest",
|
|
event_listeners=[listener],
|
|
retryReads=True,
|
|
)
|
|
|
|
with self.fail_point(fail_command):
|
|
with self.assertRaises(AutoReconnect):
|
|
client.t.t.find_one({})
|
|
|
|
# Disable failpoints on each mongos
|
|
for client in mongos_clients:
|
|
fail_command["mode"] = "off"
|
|
set_fail_point(client, fail_command)
|
|
|
|
self.assertEqual(len(listener.failed_events), 2)
|
|
self.assertEqual(len(listener.succeeded_events), 0)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|