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  1. ,
    Expert tip

    When kafka creates new consumers, it simply concatenate the name of your VM to generate the consumer id. So, your VM resolves localhost as the name of your VM, not whatever you had set. To solve, add kafka(or the name of VM) plus address to /etc/hosts

Solutions on the web

via GitHub by wilkko
, 1 year ago
ubuntu-aws-3: ubuntu-aws-3: unknown error
via Stack Overflow by Christian Gripp
, 1 year ago
via GitHub by core23
, 1 year ago
5929616b9f0b: 5929616b9f0b: unknown error
via hatenablog.com by Unknown author, 1 year ago
via Stack Overflow by vakul
, 2 years ago
java.net.UnknownHostException: ubuntu-aws-3: ubuntu-aws-3: unknown error at java.net.InetAddress.getLocalHost(InetAddress.java:1505) at javax.jmdns.impl.HostInfo.newHostInfo(HostInfo.java:75) at javax.jmdns.impl.JmDNSImpl.<init>(JmDNSImpl.java:407) at javax.jmdns.JmDNS.create(JmDNS.java:60) at hudson.DNSMultiCast$1.call(DNSMultiCast.java:33) at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)Caused by: java.net.UnknownHostException: ubuntu-aws-3: unknown error at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) at java.net.InetAddress.getLocalHost(InetAddress.java:1500) ... 9 more