[jira] Updated: (HADOOP-3259) Configuration.substituteVars() needs to handle security exceptions

["Edward J. Yoon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-3259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward J. Yoon updated HADOOP-3259:
-----------------------------------

    Attachment: 3259.patch

> Configuration.substituteVars() needs to handle security exceptions
> ------------------------------------------------------------------
>
>                 Key: HADOOP-3259
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3259
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.16.2
>            Reporter: Steve Loughran
>            Assignee: Edward J. Yoon
>            Priority: Trivial
>         Attachments: 3259.patch
>
>
> Inside Configuration.substituteVars(), there is a call to System.getProperty(var); this contains the implicit assumption that the JVM will never block access to a system property, because if that is the case -such as when the Configuration is running under a restrictive security manager, a SecurityException gets thrown. This will get thrown all the way up the tree. 
> Better to have some plan to handle it in situ, such as a log@warn level then leave the property unexpanded. 

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