Is it possible that maybe the zookeeper url used for the VerifyConsumerRebalance tool is incorrect?
On Tue, Jun 24, 2014 at 12:02 AM, Yury Ruchin <yuri.ruc...@gmail.com> wrote: > Hi, > > I've run into the following problem. I try to read from a 50-partition > Kafka topic using high level consumer with 8 streams. I'm using 8-thread > pool, each thread handling one stream. After a short time, the threads > reading from the stream stop reading. Lag between topic latest offset and > the consumer constantly increases as new messages come in. > > I looked into ZK: /consumers/<consumer_name>/owners/<topic_name> and see a > list of znodes corresponding to the full list of partitions: [1, 2, 3, > ...]. When I do zk get on e. g. > /consumers/<consumer_name>/owners/<topic_name>/1 - I see a valid consumer > name corresponding to Kafka client logs, e. g. > <consumer_name>_<node_name>-1403049600000-abc12345-0. However, when I run > the VerifyConsumerRebalance tool, I see the following: > > No owner for partition [<topic_name>,1] > (kafka.tools.VerifyConsumerRebalance$) > > No owner for partition [<topic_name>,2] > (kafka.tools.VerifyConsumerRebalance$) > > ... > > No owner for partition [<topic_name>,50] > (kafka.tools.VerifyConsumerRebalance$) > > According to this output, no partition has owner, which seemingly > contradicts to what I see in ZK. > > What would cause such a problem and how can I troubleshoot it further? > > Thanks! >
