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From "Jitendra Nath Pandey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7602) wordcount, sort etc on har files fails with NPE
Date Wed, 14 Sep 2011 23:54:08 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13105016#comment-13105016

Jitendra Nath Pandey commented on HADOOP-7602:

+1 for the current patch. 
Some usage might be calling getCanonicalService and assuming non null value in return. But
as it is, this method is not returning anything useful for HARFileSystem. Therefore it is
not a big risk to return null for this method.

Summary of a discussion with Nathan:
  SecurityUtil APIs should be fixed. Throwing a checked exception might cause backward compatibility
issues and returning an empty string may have an issue that some user code may be parsing
the service assuming it is ip:port. Although the API doesn't gaurantee a specific service
format but in hadoop it has been assumed to be "ip:port"
 So we have two options:
  1) A very conservative option to return ":0", which is the current behavior in certain cases
of invalid input.
  2) Throw IllegalArgumentException which is better than NPE and is semantically clearer.


> wordcount, sort etc on har files fails with NPE
> -----------------------------------------------
>                 Key: HADOOP-7602
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7602
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions:,
>            Reporter: John George
>            Assignee: John George
>             Fix For:
>         Attachments: hadoop-7602.1.patch, hadoop-7602.2.patch, hadoop-7602.3.patch, hadoop-7602.4.patch,
hadoop-7602.6.patch, hadoop-7602.7.patch, hadoop-7602.8.patch, hadoop-7602.9.patch, hadoop-7602.daryns_comment.2.patch,
hadoop-7602.daryns_comment.patch, hadoop-7602.patch
> wordcount, sort etc on har files fails with NPE@createSocketAddr(NetUtils.java:137).

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