Jay Kreps created KAFKA-554:
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Summary: Move all per-topic configuration into ZK and add to the
CreateTopicCommand
Key: KAFKA-554
URL: https://issues.apache.org/jira/browse/KAFKA-554
Project: Kafka
Issue Type: Bug
Reporter: Jay Kreps
Fix For: 0.8.1
We have a number of per-topic configurations that control message retention and
flush interval. Here is the list of properties I find in KafkaConfig that
appear to be per-topic:
topic.log.file.size
topic.log.roll.hours
topic.log.retention.hours
topic.log.retention.size
topic.flush.intervals.ms
Currently we specify these in server.properties. This is not a good solution as
it requires a rolling bounce of the cluster to make a change, which just
doesn't scale to having hundreds of topics. Also the map encoded in a CSV
string is kind of hacky.
We should move these into ZK in some kind of JSON blob that allows easily
adding new per-topic configs and we should remove these from server.properties.
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