I have a question about the config value offsets.retention.minutes in kafka
0.9.0.0.
Is this the timeout for when offsets get compacted in the topic or actually
deleted (as it appears from a cursory reading of
https://github.com/apache/kafka/blob/0.9.0/core/src/main/scala/kafka/coordinator/GroupMetadataManager.scala#L532
)

If it actually deletes the offsets, what happens if a topic simply doesn't
get a new message for a day (the default value for
offsets.retention.minutes). Are the offsets then forgotten? This seems
really strange and counter-intuitive. I thought offsets were supposed to be
saved forever (isn't that why a compacted topic is used)?

Thanks in advance,
Matvey Arye

Reply via email to