Kafka 消费者错误 - 提供了 xxxx 节点名或服务名,或未知 [英] Kafka Consumer Error - xxxx nodename nor servname provided, or not known
问题描述
使用以下命令运行控制台使用者时
<块引用>$ ~/project/libs/kafka_2.9.2-0.8.1.1/bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic customerevents --autocommit.interval.ms 100 --group customereventsgroup
我收到以下错误
线程main"中的异常 java.net.UnknownHostException: HQSML-142453: HQSML-142453: nodename 或 servname 提供,或未知在 java.net.InetAddress.getLocalHost(InetAddress.java:1473)在 kafka.consumer.ZookeeperConsumerConnector.(ZookeeperConsumerConnector.scala:107)在 kafka.consumer.ZookeeperConsumerConnector.(ZookeeperConsumerConnector.scala:128)在 kafka.consumer.Consumer$.create(ConsumerConnector.scala:89)在 kafka.consumer.ConsoleConsumer$.main(ConsoleConsumer.scala:178)在 kafka.consumer.ConsoleConsumer.main(ConsoleConsumer.scala)引起:java.net.UnknownHostException: HQSML-142453: nodename or servname provided, or not known在 java.net.Inet6AddressImpl.lookupAllHostAddr(本机方法)在 java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:901)在 java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1293)在 java.net.InetAddress.getLocalHost(InetAddress.java:1469)……还有 5 个
现在这个命令在连接到工作网络时可以正常工作,但从我的家庭网络运行时就不行了.
检查系统的主机名我确实得到了正确的响应
<块引用>$hostname
HQSML-142453
$
稍微看了下,发现Kafka服务器配置有以下内容
<块引用># 代理将向生产者和消费者通告的主机名.如果未设置,则使用
# 如果配置了host.name"的值.否则,它将使用从
返回的值# java.net.InetAddress.getCanonicalHostName().
Adverted.host.name=HQSML-142453
我更新为包含我的主机名,但这似乎没有帮助.关于这里可能存在什么问题的任何想法.
我知道这是一些与网络接口相关的问题,但无法将其缩小到它的范围.
配置:优胜美地、osx jdk 7、kafka v0.8.1.1
请尝试以下操作;
运行
ping HQSML-142453
如果 ping 不起作用,则意味着您没有在 /etc/hosts
或路由器 DNS 中配置主机名.因此,您必须编辑 /etc/hosts
并将您的 HQSML-142453
名称映射到运行 kafka 的 IP 地址,或者将其映射到路由器 DNS 中.>
/etc/hosts
中的映射必须如下所示;
127.0.0.1 HQSML-142453
When running the console consumer using the following command
$ ~/project/libs/kafka_2.9.2-0.8.1.1/bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic customerevents --autocommit.interval.ms 100 --group customereventsgroup
i get the following error
Exception in thread "main" java.net.UnknownHostException: HQSML-142453: HQSML-142453: nodename nor servname provided, or not known
at java.net.InetAddress.getLocalHost(InetAddress.java:1473)
at kafka.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:107)
at kafka.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:128)
at kafka.consumer.Consumer$.create(ConsumerConnector.scala:89)
at kafka.consumer.ConsoleConsumer$.main(ConsoleConsumer.scala:178)
at kafka.consumer.ConsoleConsumer.main(ConsoleConsumer.scala)
Caused by: java.net.UnknownHostException: HQSML-142453: nodename nor servname provided, or not known
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:901)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1293)
at java.net.InetAddress.getLocalHost(InetAddress.java:1469)
... 5 more
Now this command worked fine when connected to the work network but not when running from my home network.
Checking the hostname of the system I do get the correct response
$hostname
HQSML-142453
$
After reading a bit, I noticed that the Kafka server configuration has the following
# Hostname the broker will advertise to producers and consumers. If not set, it uses the
# value for "host.name" if configured. Otherwise, it will use the value returned from
# java.net.InetAddress.getCanonicalHostName().
advertised.host.name=HQSML-142453
which i updated to include my hostname but that didn't seem to help. Any ideas on what could be the problem here.
I know this is some networking interface related but cannot narrow it down to what it is.
config: Yosemite, osx jdk 7, kafka v0.8.1.1
Try the following;
Run
ping HQSML-142453
If the ping is not working that means you don't have have the hostname configured in /etc/hosts
or in your router DNS. So you must either edit the /etc/hosts
and map your HQSML-142453
name to the IP address where your kafka is running or map it in your router DNS.
Mapping must look like the following in /etc/hosts
;
127.0.0.1 HQSML-142453
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