We are trying to trouble shoot a problem wherein our system just cannot seem to read messages fast enough from Kafka. We are on kafka 0.6 and are using the simple consumer.
>From looking at the logs, and we see a lot (almost constant chatty messages) about rebalancing. So for instance every minute, we see messages like this: Consumer rookery-vacuum-prod_<first_ip>.internal-1360106018385 rebalancing the following partitions: List(0-0, 0-1, 0-10, 0-11, 0-12, 0-13, 0-14, 0-15, 0-16, 0-17, 0-18, 0-19, 0-2, 0-3, 0-4, 0-5, 0-6, 0-7, 0-8, 0-9, 1-0, 1-1, 1-10, 1-11, 1-12, 1-13, 1-14, 1-15, 1-16, 1-17, 1-18, 1-19, 1-2, 1-3, 1-4, 1-5, 1-6, 1-7, 1-8, 1-9) for topic compact-player-logs with consumers: I also see zookeeper timeouts like so: Unable to reconnect to ZooKeeper service, session 0x33c981ab95100ed has expired, closing socket connection We increased the zookeeper session timeout from 6 seconds to 12 seconds and this seems to have helped somewhat but I'm not sure if these zookeeper timeouts at 6 seconds are symptomatic of a problem with our zookeeper cluster and/or connectivity between the consumers and zk. Any thoughts? Manish
