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https://issues.apache.org/jira/browse/KAFKA-7361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16735755#comment-16735755
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Igor Soarez commented on KAFKA-7361:
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https://issues.apache.org/jira/browse/KAFKA-7755 seems to be addressing this
> Kafka wont reconnect after NoRouteToHostException
> -------------------------------------------------
>
> Key: KAFKA-7361
> URL: https://issues.apache.org/jira/browse/KAFKA-7361
> Project: Kafka
> Issue Type: Bug
> Components: zkclient
> Affects Versions: 1.1.0
> Environment: kubernetes cluster
> Reporter: C Schabert
> Priority: Major
>
> After Zookeeper died and came back up kafka could not reconnect to zookeeper.
> In this Setup zookeeper ist behind a dns and came up with a different ip.
>
> Here is the kafka log output:
>
> {code:java}
> [2018-08-30 14:50:23,846] INFO Opening socket connection to server
> zookeeper-0.zookeeper./10.42.0.123:2181. Will not attempt to authenticate
> using SASL (unknown error) (org.apache.zookeeper.ClientCnxn)
> 8/30/2018 4:50:26 PM [2018-08-30 14:50:26,916] WARN Session 0x1658b2f0f4e0002
> for server null, unexpected error, closing socket connection and attempting
> reconnect (org.apache.zookeeper.ClientCnxn)
> 8/30/2018 4:50:26 PM java.net.NoRouteToHostException: No route to host
> 8/30/2018 4:50:26 PM at sun.nio.ch.SocketChannelImpl.checkConnect(Native
> Method)
> 8/30/2018 4:50:26 PM at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> 8/30/2018 4:50:26 PM at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
> 8/30/2018 4:50:26 PM at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)
> {code}
>
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