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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4141) ScriptBasedMapping has infinite loop with invalid jobconf parameter
Date Wed, 10 Sep 2008 05:27:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12629710#action_12629710

Hadoop QA commented on HADOOP-4141:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 693705.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no tests are needed for this patch.

    -1 patch.  The patch command could not apply the patch.

Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3226/console

This message is automatically generated.

> ScriptBasedMapping has infinite loop with invalid jobconf parameter
> -------------------------------------------------------------------
>                 Key: HADOOP-4141
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4141
>             Project: Hadoop Core
>          Issue Type: Bug
>    Affects Versions: 0.18.0
>            Reporter: Aaron Kimball
>            Priority: Minor
>         Attachments: scriptMap.patch, TestScriptBasedMapping.java
>   Original Estimate: 0h
>  Remaining Estimate: 0h
> A few bugs in ScriptBasedTopology:
> 1) topology.script.number.args is not validated; if this is <= 0, the runResolveCommand()
method will run its outer loop an infinite number of times. 
> 2) CachedDNSToSwitchMapping assumes that if a List is returned, it has the same cardinality
as the number of names. ScriptBasedMapping should return 'null' instead of a mis-sized list
on error

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