INFO客户端/127.0.0.1:48452的已关闭套接字连接,其中包含sessionid 0x15698f5ac360001(org.apache.zookeeper.server.NIOServerCnxn)

Question

我安装了新鲜的zookeeper和kafka.我开始他们两个.然后,当我想使用此命令查看主题列表时:

bin/kafka-topics.sh --list --zookeeper localhost 2181

它让我的套接字连接关闭.这是屏幕截图:

    darpanshah@darpan-ubuntu:/opt/Kafka$ bin/kafka-topics.sh --list --zookeeper localhost 2181 
2016-08-17 10:44:44,053] INFO Accepted socket connection from /127.0.0.1:48452 (org.apache.zookeeper.server.NIOServerCnxnFactory)
    [2016-08-17 10:44:44,059] INFO Client attempting to establish new session at /127.0.0.1:48452 (org.apache.zookeeper.server.ZooKeeperServer)
    [2016-08-17 10:44:44,069] INFO Established session 0x15698f5ac360001 with negotiated timeout 30000 for client /127.0.0.1:48452 (org.apache.zookeeper.server.ZooKeeperServer)
    [2016-08-17 10:44:44,095] INFO Processed session termination for sessionid: 0x15698f5ac360001 (org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-08-17 10:44:44,105] INFO Closed socket connection for client /127.0.0.1:48452 which had sessionid 0x15698f5ac360001 (org.apache.zookeeper.server.NIOServerCnxn)
    darpanshah@darpan-ubuntu:/opt/Kafka$

提前致谢.被困.

Answer 1

那不是错误.主题详细信息从Zookeeper获取.因此,客户端(由kafka-topics.sh调用)首先连接到Zookeeper,然后建立会话,获取数据,然后在结束时断开连接.这是从Zookeeper获取一些数据的任何客户端的预期行为.