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From "Brian ONeill (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-3211) Enhanced IP resolution for machines with multiple network interfaces
Date Thu, 15 Sep 2011 03:12:10 GMT
Enhanced IP resolution for machines with multiple network interfaces 
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                 Key: CASSANDRA-3211
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3211
             Project: Cassandra
          Issue Type: Improvement
          Components: Hadoop
    Affects Versions: 0.8.5
         Environment: Mac OS X and Linux with machines that have multiple network interfaces
whereby the IP associated with the split is not on the network interface associated with localhost.
            Reporter: Brian ONeill
             Fix For: 0.8.6


On unix machines that have multiple network interfaces whereby the IP associated with the
split is not on the network interface associated with localhost, the getLocation method cannot
find the proper IP and throws an exception "no connection available".

I changed the implementation to use NetworkInterface instead of InetAddress using getLocalHost().

This is more reliable.  See the following references:
http://stackoverflow.com/questions/5813194/inetaddress-getlocalhost-does-not-return-expected-ip-address-from-c-windows-sy
http://stackoverflow.com/questions/4871451/inetaddress-getlocalhost-returns-wrong-result-when-hostname-is-64-chars
http://www.jguru.com/faq/view.jsp?EID=790132


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