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Posted to users@kafka.apache.org by Samy CHBINOU <sa...@greenflops.com> on 2017/01/26 13:28:28 UTC

using kafka log compaction withour key

Hello,

Is is possible to use log compaction without key? I think in that case 
buffer will contain only one line of data value? Is that correct?

thanks

Re: using kafka log compaction withour key

Posted by Ewen Cheslack-Postava <ew...@confluent.io>.

The log compaction functionality uses the key to determine which records to
deduplicate. You can think of it (very roughly) as deleting entries from a
hash map as the value for each key is overwritten. This functionality
doesn't have much of a point unless you include keys in your records.

-Ewen

On Thu, Jan 26, 2017 at 5:28 AM, Samy CHBINOU <sa...@greenflops.com>
wrote:

> Hello,
>
> Is is possible to use log compaction without key? I think in that case
> buffer will contain only one line of data value? Is that correct?
>
> thanks
>
>