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Posted to common-dev@hadoop.apache.org by "Aaron Kimball (JIRA)" <ji...@apache.org> on 2008/09/10 02:39:44 UTC

[jira] Updated: (HADOOP-4141) ScriptBasedMapping has infinite loop with invalid jobconf parameter

     [ https://issues.apache.org/jira/browse/HADOOP-4141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aaron Kimball updated HADOOP-4141:
----------------------------------

    Attachment: scriptMap.patch

> 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
>
>   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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