Are you having consumers fetching from these topics at the same time? BytesInPerSec only counts the bytes appended to the log from the produce request, and BytesOutPerSec counts the bytes fetch from fetch requests; hence both replica fetcher and normal consumer fetcher's requests count in BytesOutPerSec.
Guozhang On Fri, Nov 21, 2014 at 11:13 AM, Allen Wang <aw...@netflix.com.invalid> wrote: > We observed that for a topic, BytesIn is greater than BytesOut. We are > under the impression that BytesOut should include replication. The topic > has two replicas for each partitions and all replicas are in sync. Then > BytesOut should be at least same as BytesIn since it always needs to > replicate to a follower. Is that right? > > Thanks. > -- -- Guozhang
