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Posted to common-issues@hadoop.apache.org by "Colin Patrick McCabe (JIRA)" <ji...@apache.org> on 2015/09/23 03:16:04 UTC

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

     [ https://issues.apache.org/jira/browse/HADOOP-11072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Colin Patrick McCabe updated HADOOP-11072:
------------------------------------------
    Issue Type: Sub-task  (was: Bug)
        Parent: HADOOP-11890

> better Logging in  DNS.java
> ---------------------------
>
>                 Key: HADOOP-11072
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11072
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: net
>    Affects Versions: 2.3.0, 2.4.0
>            Reporter: jay vyas
>            Priority: Minor
>              Labels: logging
>
> 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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