Hi Kunal,
This article may help you.

https://betterprogramming.pub/kafka-acks-explained-c0515b3b707e


Cheers,
Sunil.

On Fri, 20 Aug 2021 at 8:11 PM, Kunal Goyal <kunal.go...@cohesity.com>
wrote:

> Hello,
>
> We are exploring using Kafka for our application. Our requirement is that
> once we write some messages to Kafka, it should be guaranteed that the
> messages are persisted to disk.
> We found this
> <
> https://www.quora.com/Does-Kafka-sync-data-to-disk-asynchronously-like-Redis-does
> >
> article which says that a Kafka broker acknowledges a record after it has
> written the record to the buffer of the I/O device; it does not issue an
> explicit fsync operation nor does it wait for the OS to confirm that the
> data has been written. Is this statement true for the current
> implementation? If so, is there any way in which we can ensure fsync is
> called before acknowledgement of messages?
> Any help would be appreciated.
>
> --
>
> Thanks & Regards
>
> Kunal Goyal
>

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