新版kafka消费者配置问题

1、新版kafka配置，好像没看到有介绍啊？

2、我的消费者总是出现这个提示，不知是不是正常的，提示如下：

Auto offset commit failed for group baiying-visualize: Commit cannot be completed since the group has already rebalanced and assigned the partitions to another member. This means that the time between subsequent calls to poll() was longer than the configured max.poll.interval.ms, which typically implies that the poll loop is spending too much time message processing. You can address this either by increasing the session timeout or by reducing the maximum size of batches returned in poll() with max.poll.records.

我的部分代码和相关配置如下：

ConsumerRecords<String, String> records = consumer.poll(100);

properties配置文件中部分配置如下：

enable.auto.commit=true
auto.commit.interval.ms=1000
key.deserializer=org.apache.kafka.common.serialization.StringDeserializer
value.deserializer=org.apache.kafka.common.serialization.StringDeserializer
max.poll.interval.ms=500 
max.poll.records=50
session.timeout.ms=30000