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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6578) Configuration should trim whitespace around a lot of value types
Date Fri, 19 Feb 2010 22:28:28 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HADOOP-6578:
--------------------------------

    Description: 
I've seen multiple users make an error where they've listed some whitespace around a class
name (eg for configuring a scheduler). This results in a ClassNotFoundException which is very
hard to debug, as you don't notice the whitespace in the exception! We should simply trim
the whitespace in Configuration.getClass and Configuration.getClasses to avoid this class
of user error.

Similarly, we should trim in getInt, getLong, etc - anywhere that whitespace doesn't have
semantic meaning we should be a little less strict on input.

  was:I've seen multiple users make an error where they've listed some whitespace around a
class name (eg for configuring a scheduler). This results in a ClassNotFoundException which
is very hard to debug, as you don't notice the whitespace in the exception! We should simply
trim the whitespace in Configuration.getClass and Configuration.getClasses to avoid this class
of user error.

        Summary: Configuration should trim whitespace around a lot of value types  (was: Configuration
should trim whitespace around class name values)

> Configuration should trim whitespace around a lot of value types
> ----------------------------------------------------------------
>
>                 Key: HADOOP-6578
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6578
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Priority: Minor
>
> I've seen multiple users make an error where they've listed some whitespace around a
class name (eg for configuring a scheduler). This results in a ClassNotFoundException which
is very hard to debug, as you don't notice the whitespace in the exception! We should simply
trim the whitespace in Configuration.getClass and Configuration.getClasses to avoid this class
of user error.
> Similarly, we should trim in getInt, getLong, etc - anywhere that whitespace doesn't
have semantic meaning we should be a little less strict on input.

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