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From Shantanu Deshmukh <shantanu...@gmail.com>
Subject Re: Effect of settings segment.ms and retention.ms not accurate
Date Tue, 29 May 2018 06:22:32 GMT
But then I wonder, why such things are not mentioned anywhere in Kafka
configuration document? I relied on that setting and it caused us some
issues. If it is mentioned clearly then everyone will be aware. Could you
please point in right direction about reading timestamp of log message? I
will see about implementing that solution in code.

On Tue, May 29, 2018 at 11:37 AM Matthias J. Sax <matthias@confluent.io>
wrote:

> Retention time is a lower bound for how long it is guaranteed that data
> will be stored. This guarantee work "one way" only. There is no
> guarantee when data will be deleted after the bound passed.
>
> However, client side, you can always check the record timestamp and just
> drop older data that is still in the topic.
>
> Hope this helps.
>
>
> -Matthias
>
>
> On 5/28/18 9:18 PM, Shantanu Deshmukh wrote:
> > Please help.
> >
> > On Mon, May 28, 2018 at 5:18 PM Shantanu Deshmukh <shantanu88d@gmail.com
> >
> > wrote:
> >
> >>  I have a topic otp-sms. I want that retention of this topic should be 5
> >> minutes as OTPs are invalid post that amount of time. So I set
> >> retention.ms=300000. However, this was not working. So reading more in
> >> depth in Kafka configuration document I found another topic level
> setting
> >> that can be tuned for topic retention to work properly. So I set
> >> segment.ms=300000 as well.
> >>
> >> After these changes I saw that old logs go deleted. Still in the topic I
> >> could see one record which is more than 15 minutes old and not getting
> >> deleted. What does one have to do to actually delete messages generated
> n
> >> minutes ago?
> >>
> >
>
>

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