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From "Ron Echeverri (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8951) DNS not resolving should no longer show in logs as ERROR
Date Mon, 15 Jul 2013 18:28:51 GMT
Ron Echeverri created HBASE-8951:
------------------------------------

             Summary: DNS not resolving should no longer show in logs as ERROR
                 Key: HBASE-8951
                 URL: https://issues.apache.org/jira/browse/HBASE-8951
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.94.5
            Reporter: Ron Echeverri
            Priority: Minor


Current error message from an hbase-0.94.5 installation:

{{ERROR mapreduce.TableInputFormatBase: Cannot resolve the host name for /192.168.254.178
because of javax.naming.CommunicationException: DNS error [Root exception is java.net.PortUnreachableException:
ICMP Port Unreachable]; remaining name '178.254.168.192.in-addr.arpa'}}

According to the Book, "Both forward and reverse DNS resolving must work in versions of HBase
previous to 0.92.0."  Given that since 0.92.0, forward/reverse DNS is not required, this should
be a WARN and not an ERROR.

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