Fix no-payload commit in consumer #833
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matyaskuti
commented
Mar 5, 2024
| @@ -86,7 +86,10 @@ def commit( # type: ignore[override] | |||
| if message is not None: | |||
| return super().commit(message=message, asynchronous=False) | |||
|
|
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| return super().commit(offsets=offsets, asynchronous=False) | |||
| if offsets is not None: | |||
| return super().commit(offsets=offsets, asynchronous=False) | |||
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Note: because this is a C library, there is a difference between providing None and not providing a parameter.
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oh this is not None being different from != None and different from bool(optional) stole me so much time in my life 😭
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The confluent-kafka `Consumer.commit` method can be called with no parameters, then the current partition assignment's offsets are used (see the documentation at https://docs.confluent.io/platform/current/clients/confluent-kafka-python/html/index.html#confluent_kafka.Consumer.commit). The previous behaviour was erroneous, raising a `TypeError`, thus an HTTP 500 when in the REST proxy's consumer manager a commit is performed with an empty payload.
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eliax1996
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Mar 5, 2024
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About this change - What it does
Prompted by a Sentry error, the issue is "triggered" by this line in the consumer manager.
The confluent-kafka
Consumer.commitmethod can be called with no parameters, then the current partition assignment's offsets are used (see the documentation athttps://docs.confluent.io/platform/current/clients/confluent-kafka-python/html/index.html#confluent_kafka.Consumer.commit).
The previous behaviour was erroneous, raising a
TypeError, thus an HTTP 500 when in the REST proxy's consumer manager a commit is performed with an empty payload.