apache / apache/pulsar-client-python
many "Connection closed" messages after receiving the warning "Received send error from the server: Cannot determine whether the message is a duplicate at this time" from producer
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Beschreibung
In my program, there will be eight producers, two of which will be sent to partitioned topics and six of which will be sent to unpartitioned topics.
Below is my topic configuration:
```
producer = client.create_producer(
producer_name='raw-test',
batching_enabled=True,
block_if_queue_full=True,
batching_type=BatchingType.KeyBased,
batching_max_messages=2000,
batching_max_allowed_size_in_bytes=1000 * 1024,
batching_max_publish_delay_ms=20,
compression_type=pulsar.CompressionType.ZSTD,
send_timeout_millis=0,
topic='persistent://ethereum-test/raw/tests'
)
```
I am using `sendAsync()` to send messages, but I am getting many "Connection closed" messages after receiving the warning "Received send error from the server: Cannot determine whether the message is a duplicate at this time".
I also found that I can remove `BatchingType.KeyBased` or turn off batching-mode without encountering this problem, and that the problem does not consistently occur.
Here are my debug logs:
[pulsar_log.txt](https://github.com/apache/pulsar-client-python/files/10199684/pulsar_log.txt)
**pulsar-client version is 2.10.1**
**pulsar cluster version is 2.10.2**
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