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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3741) QJM: exhaustive failure injection test for skipped RPCs
Date Tue, 31 Jul 2012 00:21:34 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HDFS-3741:
------------------------------

    Attachment: hdfs-3741.txt

Attached patch implements the test as described.

The test currently fails due to various issues in the code, many of which are pointed out
by TODOs.

That said, I'd like to commit this to the dev branch, as it will provide a reference point
and test case for the related fixes. Once we get this test passing cleanly we can move on
to adding the next set of injection tests.
                
> QJM: exhaustive failure injection test for skipped RPCs
> -------------------------------------------------------
>
>                 Key: HDFS-3741
>                 URL: https://issues.apache.org/jira/browse/HDFS-3741
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: test
>    Affects Versions: QuorumJournalManager (HDFS-3077)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hdfs-3741.txt
>
>
> This JIRA is to add a test case which exhaustively tests double-failure scenarios in
a 3-node quorum setup. The test instruments the RPCs between the client and the JNs, and injects
faults, simulating a dropped RPC. The framework used by this test will also be expanded in
future JIRAs for other failure scenarios.

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