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https://issues.apache.org/jira/browse/HADOOP-8487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291342#comment-13291342
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Ivan Mitic commented on HADOOP-8487:
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bq. why is WebHdfsFileSystem special cased in a few instances?
Test utility class {{FileSystemTestHelper}} is used by two tests,
{{TestFSMainOperationsLocalFileSystem}} and {{TestFSMainOperationsWebHdfs}}.
The former test uses DFS and the latter uses LocalFileSystem. I could change
{{FileSystemTestHelper}} to always use {{DFS_TEST_ROOT_DIR}} but in that case,
local files would be created under a path different than
{{System.getProperty("test.build.data")}} what I was trying to avoid in my
changes.
> Address test failures related to Windows paths not being valid DFS paths
> ------------------------------------------------------------------------
>
> Key: HADOOP-8487
> URL: https://issues.apache.org/jira/browse/HADOOP-8487
> Project: Hadoop Common
> Issue Type: Bug
> Components: test
> Reporter: Ivan Mitic
> Attachments: HADOOP-8487-branch-1-win.patch
>
>
> There is a number of tests that fail on Windows because Hadoop's distributed
> file system does not allow colon character in DFS paths. Specifically,
> passing in the following path to DFS:
> {code}/c:/some/path{code}
> would fail DFSUtil#isValidName check and cause the current operation to fail.
> Any test that is using local absolute path in the context of the DFS will
> fail because of this.
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