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https://issues.apache.org/jira/browse/SOLR-16150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevin Risden updated SOLR-16150:
--------------------------------
    Status: Patch Available  (was: Open)

> Many tools try to connect to embedded ZK on IPV6
> ------------------------------------------------
>
>                 Key: SOLR-16150
>                 URL: https://issues.apache.org/jira/browse/SOLR-16150
>             Project: Solr
>          Issue Type: Test
>            Reporter: Mike Drob
>            Priority: Major
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> We have a lot of places internally where we try to connect to "localhost" and 
> end up hitting the ipv6 interface for whatever reason. Is this an OS issue? A 
> VPN issue?
> Regardless, the embedded ZK isn't listening on ipv6, so we fail and retry 
> (sometimes multiple times). Each retry adds a second to our tests, but should 
> be easy to give a more specific address to connect to.
> {noformat}
> 2022-04-11 21:54:54.682 WARN  (main-SendThread(localhost:9983)) [] 
> o.a.z.ClientCnxn Session 0x0 for sever localhost/[0:0:0:0:0:0:0:1]:9983, 
> Closing socket connection. Attempting reconnect except it is a 
> SessionExpiredException. => java.net.ConnectException: Connection refused
>         at java.base/sun.nio.ch.Net.pollConnect(Native Method)
> java.net.ConnectException: Connection refused
>         at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
>         at sun.nio.ch.Net.pollConnectNow(Net.java:672) ~[?:?]
>         at 
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:946) ~[?:?]
>         at 
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:344)
>  ~[?:?]
>         at 
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1280) ~[?:?]
> {noformat}



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