通过kafka提供的命令来查看offset消费情况

使用kafka的bin目录下面的kafka-consumer-groups.sh命令可以查看offset消费情况，注意，如果你的offset是存在kafka集群上的，就指定kafka服务器的地址bootstrap-server：

[root@QA-6-10 bin]# ./kafka-consumer-groups.sh --bootstrap-server 172.17.6.10:9092 --describe --group friend-group
Note: This will only show information about consumers that use the Java consumer API (non-ZooKeeper-based consumers).


TOPIC     PARTITION  CURRENT-OFFSET  LOG-END-OFFSET  LAG   CONSUMER-ID                                       HOST            CLIENT-ID
friend    0          13949           13949           0     consumer-1-25efc288-c534-4b1b-a57b-4cfdce853439   /172.17.6.181   consumer-1
friend    1          13871           13871           0     consumer-1-25efc288-c534-4b1b-a57b-4cfdce853439   /172.17.6.181   consumer-1
friend    2          13974           13974           0     consumer-1-25efc288-c534-4b1b-a57b-4cfdce853439   /172.17.6.181   consumer-1
friend    3          14192           14192           0     consumer-1-25efc288-c534-4b1b-a57b-4cfdce853439   /172.17.6.181   consumer-1
friend    4          14036           14036           0     consumer-1-25efc288-c534-4b1b-a57b-4cfdce853439   /172.17.6.181   consumer-1