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From "Patrick Hunt (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-2814) Ignore space after comma in connection string
Date Fri, 13 Oct 2017 23:27:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16204345#comment-16204345

Patrick Hunt commented on ZOOKEEPER-2814:

The expectation has always been that the user will format the string properly. I believe we
should provide an error that allows the user to rectify, rather than ignoring. That just makes
our lives harder in the future.

> Ignore space after comma in connection string
> ---------------------------------------------
>                 Key: ZOOKEEPER-2814
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2814
>             Project: ZooKeeper
>          Issue Type: Bug
>    Affects Versions: 3.5.3
>            Reporter: Viliam Durina
>            Assignee: Nikhil Bhide
>            Priority: Minor
> I'm using the following connection string:
> {{,<space>}}
> However, I get:
> {{java.net.UnknownHostException: Name or service not known
> 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.getAllByName0(InetAddress.java:1276)
> at java.net.InetAddress.getAllByName(InetAddress.java:1192)
> at java.net.InetAddress.getAllByName(InetAddress.java:1126)
> at org.apache.zookeeper.client.StaticHostProvider.<init>(StaticHostProvider.java:61)
> at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:445)
> at ...
> ...}}
> The problem was the space after the comma. I suggest to either make the space optional
or produce error on it, as this is a real pain to spot. Using the space also makes the connect
string more readable. Spaces are not allowed in domain names.

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