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From "Robert Chansler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-435) Add orthogonal fault injection mechanism/framework
Date Fri, 09 Oct 2009 18:45:31 GMT

     [ https://issues.apache.org/jira/browse/HDFS-435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Chansler updated HDFS-435:
---------------------------------

    Release Note: New fault injection framework AspectJ improves testing. See Jira item for
users' guide.

Editorial pass over all release notes prior to publication of 0.21.

> Add orthogonal fault injection mechanism/framework
> --------------------------------------------------
>
>                 Key: HDFS-435
>                 URL: https://issues.apache.org/jira/browse/HDFS-435
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: test
>            Reporter: Konstantin Boudnik
>            Assignee: Konstantin Boudnik
>         Attachments: Fault injection development guide and Framework HowTo.pdf, Fault
injection development guide and Framework HowTo.pdf
>
>
> 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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