logstash的topics_pattern如何使用，配置不生效唉

input{

  kafka{

    bootstrap_servers => ["192.168.2.207:9092"]

    group_id => "es2"

    auto_offset_reset => "earliest"

    consumer_threads => 2

    codec => "plain"

    decorate_events => true

    #topics => ["kafka_topic1"]

    topics_pattern => "kafka_.*"

  }

}

A topic regex pattern to subscribe to. The topics configuration will be ignored when using this configuration.