Expired batches in producer are not retried.

[rohnigam]

Hi,

I am using the following versions of the libraries.

kafka == 1.3.5
kafka-python == 2.0.1

We sometimes see that batches are expired in accumulator. But I have been observing that these messages are not retried by the producer.

I see that this behaviour has been updated in the apache kafka via
https://issues.apache.org/jira/browse/KAFKA-5621
https://cwiki.apache.org/confluence/display/KAFKA/KIP-91+Provide+Intuitive+User+Timeouts+in+The+Producer

Is this behavior present in the kafka-python library versions that we are using or is this behavior yet to be added ?

Also, in general why do batches expire or are not able to be sent even when there is no downtime on server?
Is this a common issue ?