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Posted to common-issues@hadoop.apache.org by "jay vyas (JIRA)" <ji...@apache.org> on 2014/09/06 03:20:28 UTC

[jira] [Created] (HADOOP-11072) better Logging in DNS.java

jay vyas created HADOOP-11072:
---------------------------------

             Summary: better Logging in  DNS.java
                 Key: HADOOP-11072
                 URL: https://issues.apache.org/jira/browse/HADOOP-11072
             Project: Hadoop Common
          Issue Type: Improvement
    Affects Versions: 2.4.0, 2.3.0
            Reporter: jay vyas
            Priority: Minor


The DNS.java class should be more informative, and possibly fail early when reverse  DNS is broken.  Right now it is vulnerable to a cryptic ArrayIndex exception.

{noformat}
parts = hostIp.getHostAddress(....)
String reverseIp = parts[3] + parts[2] ... 
{noformat}

During this patch I think we can also improve a couple other minor logging statements in the net package.





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