[jira] [Created] (ZOOKEEPER-4268) Avoid Reverse DNS lookup if the hostname in connection string is literal IP address.

[guoaomen (Jira)]

guoaomen created ZOOKEEPER-4268:
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             Summary: Avoid Reverse DNS lookup if the hostname in connection 
string is literal IP address.
                 Key: ZOOKEEPER-4268
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4268
             Project: ZooKeeper
          Issue Type: Bug
    Affects Versions: 3.4.14, 3.4.13
            Reporter: guoaomen


Fix https://issues.apache.org/jira/browse/ZOOKEEPER-2184, when the client 
connects to the server via ip, it will also perform dns reverse lookup. I think 
this shouldn’t be the case, dns reverse lookup should only work Domain name is 
valid



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