Details
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Task
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Status: Closed
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Major - P3
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Resolution: Fixed
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None
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None
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None
Description
These mapReduce doc tests are failing on MongoDB 4.3:
Document: examples/aggregation
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------------------------------
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**********************************************************************
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File "examples/aggregation.rst", line 121, in default
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Failed example:
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for doc in result.find():
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pprint.pprint(doc)
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Expected:
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{'_id': 'cat', 'value': 3.0}
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{'_id': 'dog', 'value': 2.0}
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{'_id': 'mouse', 'value': 1.0}
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Got:
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{'_id': 'cat', 'value': 3.0}
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{'_id': 'mouse', 'value': 1.0}
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{'_id': 'dog', 'value': 2.0}
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**********************************************************************
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File "examples/aggregation.rst", line 139, in default
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Failed example:
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pprint.pprint(
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db.things.map_reduce(mapper, reducer, "myresults", full_response=True))
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Expected:
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{...'counts': {'emit': 6, 'input': 4, 'output': 3, 'reduce': 2},
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'ok': ...,
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'result': '...',
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'timeMillis': ...}
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Got:
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{'$clusterTime': {'clusterTime': Timestamp(1581123789, 1669),
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'signature': {'hash': '\x00\x00\x00\x00\x00\x00\x00\x00'
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'\x00\x00\x00\x00\x00\x00\x00\x00'
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'\x00\x00\x00\x00',
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'keyId': 0}},
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'ok': 1.0,
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'operationTime': Timestamp(1581123789, 1669),
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'result': 'myresults'}
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**********************************************************************
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File "examples/aggregation.rst", line 154, in default
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Failed example:
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for doc in results.find():
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pprint.pprint(doc)
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Expected:
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{'_id': 'cat', 'value': 1.0}
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{'_id': 'dog', 'value': 1.0}
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Got:
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{'_id': 'dog', 'value': 1.0}
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{'_id': 'cat', 'value': 1.0}
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**********************************************************************
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File "examples/aggregation.rst", line 166, in default
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Failed example:
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pprint.pprint(
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db.things.map_reduce(
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mapper,
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reducer,
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out=SON([("replace", "results"), ("db", "outdb")]),
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full_response=True))
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Expected:
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{...'counts': {'emit': 6, 'input': 4, 'output': 3, 'reduce': 2},
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'ok': ...,
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'result': {'collection': ..., 'db': ...},
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'timeMillis': ...}
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Got:
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{'$clusterTime': {'clusterTime': Timestamp(1581123789, 1678),
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'signature': {'hash': '\x00\x00\x00\x00\x00\x00\x00\x00'
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'\x00\x00\x00\x00\x00\x00\x00\x00'
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'\x00\x00\x00\x00',
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'keyId': 0}},
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'ok': 1.0,
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'operationTime': Timestamp(1581123789, 1678),
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'result': {'collection': 'results', 'db': 'outdb'}}
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**********************************************************************
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1 items had failures:
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The interesting thing here is that it appears the order of mapReduce's resulting collection is no longer stable.
Attachments
Issue Links
- related to
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PYTHON-2072 MR in Agg: Remove in-line mapReduce execution statistics
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- Closed
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