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From Istvan Soos <>
Subject Re: log compaction of entries
Date Tue, 07 Nov 2017 20:18:30 GMT
On Tue, Nov 7, 2017 at 8:09 PM, Sijie Guo <> wrote:
> But I would to learn more about your use case and to see how we can support
> you.

It is a nice feature in Kafka, and I've seen a complex app using it:

My use case is really simple: a website is crawled in regular periods,
and it is easy to create a content identifier out of it. I would store
the different versions of it in a ledger for downstream processing,
but there is really no need to preserve all of the versions of the
past if the content identifier is the same.

I know this specific case can be handled in many different ways, but
if the ledger could do that on its own, it could simplify the overall
architecture (free GC).


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