Do you see any ISR churns on the brokers? You can check the ISR expand/shrink rate jmx.
Thanks, Jun On Wed, Dec 4, 2013 at 3:53 PM, Ryan Berdeen <rberd...@hubspot.com> wrote: > I'm working on some monitoring tools for Kafka, and I've seen a couple of > clusters get into a state where ClientUtils.fetchTopicMetadata will show > that not all replicas are in the ISR. > > At the same time, ZkUtils.getLeaderIsrAndEpochForPartition will show that > all all partitions are in the ISR, and > the "kafka.server":name="UnderReplicatedPartitions",type="ReplicaManager" > MBean will report 0. > > What's going on? Is there something wrong with my controller, or should I > not be paying attention to ClientUtils.fetchTopicMetadata? > > Thanks, > > Ryan >
