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https://issues.apache.org/jira/browse/HADOOP-5974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717385#action_12717385
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Tsz Wo (Nicholas), SZE commented on HADOOP-5974:
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>% ant run-test-hdfs -DallFaultProbability=0 -DBlockReceiverFaultProbability=10
The naming convention may be better to have something like fault.probability.*,
fault.probability.datanode.BlockReceiver, etc.
> 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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