Fix timestamp not passed to RecordMetadata #1273
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test/test_producer.py
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| retries=5, | ||
| max_block_ms=10000, | ||
| compression_type=compression, | ||
| value_serializer=str.encode) |
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You're sending bytes below so no serializer needed here.
| return cls.LOG_OVERHEAD + cls.record_size(magic, key, value) | ||
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| class LegacyRecordMetadata(object): |
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I'm sorry, I am clearly missing something... What is the purpose of this class? It doesn't seem to do anything other than enforcing read-only on the attributes. Is there something else it does that I'm not realizing?
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No, it's more or less as you said. It's just a class to store results of a function. I find this a bit more clean than namedtuple when it comes to optimization. This is a hot part.
It's a more convenient way of returning several values from a function. Returning a tuple will require you to parse it every time, but returning either None or an instance will only require a None check. See https://github.com/dpkp/kafka-python/pull/1273/files#diff-261f56705197d1ab9e6fca9249856556 and https://github.com/dpkp/kafka-python/pull/1273/files#diff-d98d7e54a13e15511c44d90e78f105e9R368.
Tried to fix #1270 and found, that it did not work properly in the first place. Was a bug in FutureRecordMetadata, that ignored timestamp=-1 being returned from the broker.
Also minor fixes include:
RecordMetadata.checksum