Umesh Chaudhary commented on KAFKA-5718:

[~cotedm] sounds reasonable. Also LogAppendTime is considered when brokers done 
with appending the message by fulfilling the min.insync.replicas. Would it 
consider other values of acks? 

Also what doc section should be fine to have this information? 

> Better document what LogAppendTime means
> ----------------------------------------
>                 Key: KAFKA-5718
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5718
>             Project: Kafka
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions:
>            Reporter: Dustin Cote
>            Priority: Trivial
> There isn't a good description of LogAppendTime in the documentation. It 
> would be nice to add this in somewhere to say something like:
> LogAppendTime is some time between when the partition leader receives the 
> request and before it writes it to it's local log. 
> There are two important distinctions that trip people up:
> 1) This timestamp is not when the consumer could have first consumed the 
> message. This instead requires min.insync.replicas to have been satisfied.
> 2) This is not precisely when the leader wrote to it's log, there can be 
> delays along the path between receiving the request and writing to the log.

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