java.net.UnknownHostException

opt

Samebug tips1

Check if you don't have a VPN or something like this messing with your connection. Also, check Jenkins DNS configurations (try to start it with "--dns 8.8.8.8".

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Solutions on the web4

  • via GitHub by jakubklimek
    , 8 months ago
    opt
  • opt
  • opt
  • Stack trace

    • java.net.UnknownHostException: opt at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at sun.net.ftp.impl.FtpClient.doConnect(FtpClient.java:957) at sun.net.ftp.impl.FtpClient.tryConnect(FtpClient.java:917) at sun.net.ftp.impl.FtpClient.connect(FtpClient.java:1012) at sun.net.ftp.impl.FtpClient.connect(FtpClient.java:998) at sun.net.www.protocol.ftp.FtpURLConnection.connect(FtpURLConnection.java:294) at sun.net.www.protocol.ftp.FtpURLConnection.getInputStream(FtpURLConnection.java:393) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:557) at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:526) at org.apache.log4j.LogManager.<clinit>(LogManager.java:127) at org.slf4j.impl.Log4jLoggerFactory.<init>(Log4jLoggerFactory.java:66) at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:72) at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:45) at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150) at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124) at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383) at org.apache.kafka.common.security.JaasUtils.<clinit>(JaasUtils.java:30) at kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService.<init>(ConsumerGroupCommand.scala:135) at kafka.admin.ConsumerGroupCommand$.main(ConsumerGroupCommand.scala:58) at kafka.admin.ConsumerGroupCommand.main(ConsumerGroupCommand.scala)

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