kafka-consumer.properties

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# see org.apache.kafka.clients.consumer.ConsumerConfig for more details

# list of brokers used for bootstrapping knowledge about the rest of the cluster
# format: host1:port1,host2:port2 ...
#bootstrap.servers=localhost:9092

# consumer group id
#group.id=test-consumer-group

# What to do when there is no initial offset in Kafka or if the current
# offset does not exist any more on the server: latest, earliest, none
#auto.offset.reset=

#zookeeper连接服务器地址
zookeeper.connect=192.168.142.145:2181,192.168.142.146:2181,192.168.142.147:2181

# zookeeper的过期时间，默认5000ms，用于检测消费者是否挂掉
zookeeper.session.timeout.ms=5000

# 当消费者挂掉，其他消费者要等该指定时间才能检查到并且触发重新负载均衡
zookeeper.connection.timeout.ms=10000

# 指定多久消费者更新offset到zookeeper中。注意offset更新时基于time而不是每次获得的消息，一旦在更新zookeeper发生异常并重启，将可能拿到已拿到过的消息。
zookeeper.sync.time.ms=2000

#指定消费组
group.id=xxx_gl_kafka_group

#当consumer消费一定量的消息之后，将会自动向zookeeper提交offset信息
#注意offset信息并不是每消费一次消息就向zk提交一次，而是先在本地保存（内存），并定期提交，默认为true
auto.commit.enable=true

#自动更新时间。默认60*1000
auto.commit.interval.ms=1000

#当前consumer的标识，可以设定，也可以有系统生成，主要用来跟踪消息消费情况，便于观察
consumer.id=xxx

#消费者客户端编号，用于区分不同客户端，默认客户端程序自动产生
client.id=xxxx

#最大取多少块缓存到消费者（默认为10）
queued.max.message.chunks=50

当有新的consumer加入group时，将会reblance，此后将会有partition的消费端迁移到新的consumer获得某个partition的消费权限，那么它将会向zk注册"partition owner registry"节点信息，但是有可能此时旧的consumer尚没有释放此节点，此值用于控制，注册节点的重试次数。
rebalance.max.retries=5

#获取信息的最大尺寸，broker不会像consumer输出大于此值的消息chunk，每次fetch将得到很多条消息，此值为总大小，提升此值，将会消耗更多的consumer端内存
fetch.min.bytes=6553600

#当消息的尺寸不足时，server阻塞的时间，如果超时，消息将立即发送给consumer
fetch.wait.max.ms=5000
socket.receive.buffer.bytes=655360

#如果zookeeper没有offset值或者offset值超出范围，那么就给个初始的offset。有smallest、largest、anything可选，分别表示给当前最小的offset、当前最大的offset、抛异常。默认largest
auto.offset.reset=smallest