java Kafka与Spring集成consumertimeout与读取超时？

Question

配置

使用spring integration kafka Extension和以下配置：

<int-kafka:zookeeper-connect id="zookeeperConnect"
    zk-connect="#{kafkaConfig['zooKeeperUrl']}" zk-connection-timeout="10000"
    zk-session-timeout="10000" zk-sync-time="2000" />

<int-kafka:consumer-context id="consumerContext" consumer-timeout="5000" zookeeper-connect="zookeeperConnect">

timeout是等待消息的时间，还是等待消息并阅读消息的时间？该值与读取超时不同吗