java.net.UnknownHostException: ip-172-30-0-37: ip-172-30-0-37: unknown error

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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 tobwiens
, 1 year ago
ip-172-30-0-37: ip-172-30-0-37: unknown error
via Stack Overflow by Sushil
, 1 year ago
Web: Web: unknown error
via GitHub by mahileeb
, 2 years ago
ip-10-10-1-151: ip-10-10-1-151
via Stack Overflow by xigua
, 1 year ago
code-manage.novalocal: code-manage.novalocal: unknown error
via GitHub by xoraes
, 1 year ago
ip-10-29-121-116: ip-10-29-121-116: unknown error
java.net.UnknownHostException: ip-172-30-0-37: ip-172-30-0-37: unknown error	at java.net.InetAddress.getLocalHost(InetAddress.java:1505)	at org.ow2.proactive.scheduler.core.DataSpaceServiceStarter.startNamingService(DataSpaceServiceStarter.java:138)	at org.ow2.proactive.scheduler.core.SchedulerFrontend.initActivity(SchedulerFrontend.java:243)	at org.objectweb.proactive.core.body.ActiveBody.run(ActiveBody.java:163)	at java.lang.Thread.run(Thread.java:745)Caused by: java.net.UnknownHostException: ip-172-30-0-37: 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)	... 4 more