Jay Kreps created KAFKA-1846:
--------------------------------
Summary: Offset storage topic should not default to replication
factor 1
Key: KAFKA-1846
URL: https://issues.apache.org/jira/browse/KAFKA-1846
Project: Kafka
Issue Type: Improvement
Affects Versions: 0.8.2
Reporter: Jay Kreps
Fix For: 0.8.3
Currently the offset storage topic defaults to replication factor 1
(offsets.topic.replication.factor). Presumably this is because we want to make
the single-node case work well "out of the box". But this is one of those
obscure settings most people won't really know about so most people won't
realize they are running this without replication. It would be better to change
the default in KafkaConfig to -1 and have this set the replication factor
dynamically when that topic is created to be the min(3,total_nodes), if on the
other hand the user sets some value here we would use that.
In the absence of this I think many people will not realize what is happening
until suddenly a broker dies and they can't commit offsets.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
