[jira] [Created] (HDFS-8309) Skip unit test using DataNodeTestUtils#injectDataDirFailure() on Windows

["Xiaoyu Yao (JIRA)" <ji...@apache.org>]

Xiaoyu Yao created HDFS-8309:
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             Summary: Skip unit test using DataNodeTestUtils#injectDataDirFailure() on Windows
                 Key: HDFS-8309
                 URL: https://issues.apache.org/jira/browse/HDFS-8309
             Project: Hadoop HDFS
          Issue Type: Sub-task
    Affects Versions: 2.7.0
            Reporter: Xiaoyu Yao
            Assignee: Xiaoyu Yao
            Priority: Minor


As [~cnauroth] noted  in HDFS-7917 below, DataNodeTestUtils.injectDataDirFailure() won't work for Windows as rename will fail due to open handles on data node dir. This ticket is opened to skip these tests for Windows. 

bq.Unfortunately, I just remembered that the rename isn't going to work on Windows. It typically doesn't allow you to rename a directory where there are open file handles anywhere in the sub-tree. We'd have to shutdown the DataNode before doing the rename and then start it up. By doing that, we'd be changing the meaning of the test from covering an online failure to covering a failure at DataNode startup, so I don't think we can make that change.

Below are the two test cases that need to be fixed:
# TestDataNodeVolumeFailure#testFailedVolumeBeingRemovedFromDataNode
# TestDataNodeHotSwapVolumes.testDirectlyReloadAfterCheckDiskError




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