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https://issues.apache.org/jira/browse/HDFS-849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12794178#action_12794178
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Hairong Kuang commented on HDFS-849:
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Hudson seemed to have some problem testing this patch so canceling it. This
patch effects only fault injection tests. I have ran fault tests multiple times
and all passed.
> TestFiDataTransferProtocol2#pipeline_Fi_18 sometimes fails
> ----------------------------------------------------------
>
> Key: HDFS-849
> URL: https://issues.apache.org/jira/browse/HDFS-849
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 0.20.1
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.21.0, 0.22.0
>
> Attachments: countDown.patch
>
>
> .TestFiDataTransferProtocol2#pipeline_Fi_18 sometimes fails with the
> following error:
> junit.framework.AssertionFailedError:
> at
> org.apache.hadoop.hdfs.server.datanode.TestFiDataTransferProtocol2.runTest17_19(TestFiDataTransferProtocol2.java:139)
> at
> org.apache.hadoop.hdfs.server.datanode.TestFiDataTransferProtocol2.pipeline_Fi_18(TestFiDataTransferProtocol2.java:186)
> Which means that the test did not trigger pipeline recovery. The test log
> shows that there is no fault injected to the pipeline. It turns out there is
> a bug in the test code. Counting down 3 means inject a fault when receiving
> the fourth packet. But the code allows the file to have only 3 packets.
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