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https://issues.apache.org/jira/browse/HDFS-3800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13434633#comment-13434633
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Aaron T. Myers commented on HDFS-3800:
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Test looks great, and I agree we should go ahead and check it in to the branch
as-is.
One tiny nit: looks like you left in a System.out.println when we should
probably have used a LOG.info.
+1 otherwise.
> QJM: improvements to QJM fault testing
> --------------------------------------
>
> Key: HDFS-3800
> URL: https://issues.apache.org/jira/browse/HDFS-3800
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: QuorumJournalManager (HDFS-3077)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: hdfs-3800.txt
>
>
> This JIRA improves TestQJMWithFaults as follows:
> - the current implementation didn't properly unwrap exceptions thrown by the
> reflection-based injection method. This caused some issues in the code where
> the injecting proxy didn't act quite like the original object.
> - the current implementation incorrectly assumed that the recovery process
> would recover to _exactly_ the last acked sequence number. In fact, it may
> recover to that transaction _or any greater transaction_.
> It also adds a new randomized test which uncovered a number of other bugs. I
> will defer to the included javadoc for a description of this test.
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