Jun Rao created KAFKA-4313:
------------------------------
Summary: ISRs may thrash when replication quota is enabled
Key: KAFKA-4313
URL: https://issues.apache.org/jira/browse/KAFKA-4313
Project: Kafka
Issue Type: Bug
Affects Versions: 0.10.1.0
Reporter: Jun Rao
Assignee: Jun Rao
Fix For: 0.10.1.1
I created a high volume topic and a low volume topic, each with 1000 partitions
and 2 replicas on 2 brokers. I populated the high volume topic with 4GB of
data. Added a third broker and ran the rebalance tool with a 2MB/sec
replication quota. At some point, all replicas for the low volume topic have
been moved over and the new replicas are all in sync, but the high volume
replicas are still catching up. Then, I started slowly producing to the low
volume topic. Once I do that, I started seeing the low volume partitions' ISR
constantly expanding and shrinking. The observed ISR change rate is ~ 6/sec.
So, it does seem that ISR thrashing can happen.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
