Neha Narkhede created KAFKA-1864:
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Summary: Revisit defaults for the internal offsets topic
Key: KAFKA-1864
URL: https://issues.apache.org/jira/browse/KAFKA-1864
Project: Kafka
Issue Type: Bug
Affects Versions: 0.8.2
Reporter: Neha Narkhede
Priority: Blocker
Realize this is late, but as I was reviewing the 0.8.2 RC, I found that our
defaults for the offsets topic are not ideal. The # of partitions currently
default to 1 and the replication factor is 1 as well. Granted that the
replication factor is changeable in the future (through the admin tool),
changing the # of partitions is a very disruptive change. The concern is that
this feature is on by default on the server and will be activated the moment
the first client turns on kafka based offset storage.
My proposal is to change the # of partitions to something large (50 or so) and
change the replication factor to min(# of alive brokers, configured replication
factor)
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