我使用Kafka 0.11.0.3
我有一个Kafka经纪人和一个远程Zookeeper集群。我启动了Kafka服务器，它成功在Zookeeper中注册了其ID，甚至可以使用 kafka-topic.sh 命令获取主题列表。问题是我反复在Kafka日志中观察到以下几行：
[2019-01-08 10:51:09,138] WARN Attempting to send response via channel for which there is no open connection, connection id 192.168.0.201:9092-192.168.0.201:58292 (kafka.network.Processor)
[2019-01-08 10:51:09,198] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2019-01-08 10:51:09,226] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
[2019-01-08 10:51:09,306] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2019-01-08 10:51:09,327] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
[2019-01-08 10:51:09,382] WARN Attempting to send response via channel for which there is no open connection, connection id 192.168.0.201:9092-192.168.0.201:58296 (kafka.network.Processor)
[2019-01-08 10:51:09,408] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2019-01-08 10:51:09,446] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
[2019-01-08 10:51:09,559] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2019-01-08 10:51:09,602] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
代理尝试连接到同一台计算机（正在运行Kafka服务器）上的端口58292，但无法建立连接。 我还检查了Zookeeper上的控制器目录，它是空的。 当我在Kafka服务器节点上获得TCP建立的连接时，更奇怪的是，我观察到了许多 TIME_WAIT 连接：
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 192.168.0.201:55572 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56290 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55442 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55512 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56074 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56286 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55460 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55904 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55488 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56308 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55502 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56326 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55960 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55930 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56300 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56004 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55470 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55474 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55432 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55412 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56304 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55858 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55860 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56324 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55388 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56168 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55898 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55820 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55676 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56202 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55756 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56278 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55658 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55628 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56038 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56108 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55988 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55894 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55428 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55424 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56128 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56146 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55884 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56280 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55798 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56120 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55888 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55708 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55696 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56298 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55646 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56150 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55376 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55980 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55556 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56208 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55752 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55982 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55864 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55760 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56056 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56002 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55536 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55576 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55392 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55726 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55426 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55710 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56042 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56264 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55606 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55972 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56176 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55780 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56342 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55534 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55438 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56114 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56068 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55880 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56350 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55970 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55404 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55672 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55454 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55946 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56126 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55538 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56124 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55712 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56084 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55992 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56302 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55984 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55394 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55550 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56094 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55936 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55530 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55868 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:56294 192.168.0.201:9092 TIME_WAIT -
tcp 0 0 192.168.0.201:55876 192.168.0.201:9092 TIME_WAIT -
tcp 0 31 192.168.0.201:57552 192.168.0.204:2181 ESTABLISHED 1015/java
唯一成功建立的连接是Zookeeper的连接（在最后一行）。我还从远程节点检查了端口9092，它已打开：
Starting Nmap 7.01 ( https://nmap.org ) at 2019-01-08 11:32 +0330
Nmap scan report for (192.168.0.201)
Host is up (0.0027s latency).
PORT STATE SERVICE
9092/tcp open unknown
Nmap done: 1 IP address (1 host up) scanned in 0.08 seconds
一些要点：
这是Kafka服务器配置：
broker.id=100
listeners=PLAINTEXT://192.168.0.201:9092
num.partitions=24
delete.topic.enable=true
log.dirs=/data/esb
zookeeper.connect=co1:2181,co2:2181
log.retention.hours=168
zookeeper.session.timeout.ms=40000
TIME_WAIT 连接的原因是什么？
答案 0 :(得分：0)
我之前也遇到过类似的 TIME_WAIT 问题，你可以查看你的 zookeeper 日志，默认位置是：
/bin/zookeeper.out
我的问题的原因基本上是权限问题：我使用普通用户启动zookeeper，但不知何故/zkdata下的文件归root所有
zookeeper日志会告诉你原因