Topic can be configured in "dual" mode too via >> cleanup.policy="delete,compact"
For this case, `retention.ms` is basically a TTL for a key that is not updated for this amount of time. -Matthias On 12/3/17 11:54 AM, Jan Filipiak wrote: > Hi > > the only retention time that applies for compacted topics is the > delete.retention.ms > The duration that tombstones for deletes will be kept in the topic > during compaction. > > A very detail explaination on what is going on can be found here: > > https://kafka.apache.org/documentation/#compaction > > Hope this helps > > Best Jan > > > On 03.12.2017 20:27, Dmitry Minkovsky wrote: >> This is a pretty stupid question. Mostly likely I should verify these by >> observation, but really I want to verify that my understanding of the >> documentation is correct: >> >> Suppose I have topic configurations like: >> >> retention.ms=$time >> cleanup.policy=compact >> >> >> My questions are: >> >> 1. After $time, any offsets older than $time will be eligible for >> compaction? >> 2. Regardless of $time, any offsets in the current segment will >> not be >> compacted? >> >> >> Thank you, >> Dmitry >> >
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