Sometimes it's useful to see the position of your consumers. We have a tool that will show the position of all consumers in a consumer group as well as how far behind the end of the log they are. To run this tool on a consumer group named my-group consuming a topic named my-topic would look like this:
有时候需要去查看你的消费者的位置。我们有一个显示【消费者组中】所有消费者的位置的工具。显示日志其落后多远。消费者组名为my-group,消费者topic名为my-topic,如下:
> bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker --zkconnect localhost:2181 --group test
Group Topic Pid Offset logSize Lag Owner
my-group my-topic 0 0 0 0 test_jkreps-mn-1394154511599-60744496-0
my-group my-topic 1 0 0 0 test_jkreps-mn-1394154521217-1a0be913-0
NOTE: Since 0.9.0.0, the kafka.tools.