Indempotent Producer implementation

[tvoinarovskyi]

Before working on #1063 we can implement the enable_idempotence option on Producer. Related KAFKA issue: KAFKA-4817.
As it's already delivered and I want to finish both at the same time KAFKA-5793 changes the semantics of SequenceOutOfOrder to handle case where no data loss happened, just broker removed this PID from metadata.

[mrubin]

What is the status of idempotent producer support?

[perezjasonr]

Hello. Any status update on this? I just learned about the enable_idempotence_config option and this seems too good not to have.

[tarunagra]

team any updates on idempotent producer availability?

[tarunagra]

team, any updates of this (idempotent producer) feature? Please advise

[neoaksa]

Hello, can anybody tell me if this feature is not available in now and future.

[fpinvo]

Hello is there any update about enable_idempotent producer feature?

[hzbd]

any update?