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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5974) Add orthogonal fault injection mechanism/framework
Date Mon, 08 Jun 2009 19:32:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717373#action_12717373
] 

Konstantin Boudnik commented on HADOOP-5974:
--------------------------------------------

My patch is pretty much ready and requires a couple of libraries to be added to the Hadoop
project. These libraries aren't associated with any of Apache's projects: they are under Eclipse
Software License and are distributed from their website.

I'm not sure what is the 'rule of thumb' to add the libraries to ivy configuration for Hadoop?
Or shall they be added statically, e.g. into SVN repository? I assume that the latter is a
bad idea generally, which leaves us with the former option.

Can any of the watchers comment on this, please?

> Add orthogonal fault injection mechanism/framework
> --------------------------------------------------
>
>                 Key: HADOOP-5974
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5974
>             Project: Hadoop Core
>          Issue Type: Test
>          Components: test
>            Reporter: Konstantin Boudnik
>            Assignee: Konstantin Boudnik
>
> It'd be great to have a fault injection mechanism for Hadoop.
> Having such solution in place will allow to increase test coverage of error handling
and recovery mechanisms, reduce reproduction time and increase the reproduction rate of the
problems.
> Ideally, the system has to be orthogonal to the current code and test base. E.g. faults
have to be injected at build time and would have to be configurable, e.g. all faults could
be turned off, or only some of them would be allowed to happen. Also, fault injection has
to be separated from production build. 

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