[jira] [Updated] (HADOOP-9939) Custom Processing for Errors

["Benoy Antony (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-9939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benoy Antony updated HADOOP-9939:
---------------------------------

    Attachment: hadoop-9939.patch

Attaching a patch to accomplish the custom error processing requirement.

An Interface - CustomExceptionHandler is defined. Control is given to this CustomExceptionHandler  from different exception blocks. The exception blocks are identified by a handle.
A DefaultCustomExeptionHandler is defined to keep the default exception handling for each error case.

The framework is used when an Authentication failure occurs. 
A testcase is written to test the exceptionHandler. 

                
> Custom Processing for Errors
> ----------------------------
>
>                 Key: HADOOP-9939
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9939
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>            Priority: Minor
>         Attachments: hadoop-9939.patch
>
>   Original Estimate: 20h
>  Remaining Estimate: 20h
>
> We have a use case where we want to display different error message and take some bookkeeping actions when there is authentication failure in Hadoop.
> There could be  other error cases where we want to associate custom actions message.
> The work  is define a framework to attach custom error processors as part of exception handling . Use that framework to display custom error message for authentication failures.
> Please review and let me know your comments or alternatives.

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