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From "Binglin Chang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5125) TestCreateEditsLog#testCanLoadCreatedEditsLog fails on Windows in globStatus
Date Thu, 22 Aug 2013 08:00:56 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13747348#comment-13747348

Binglin Chang commented on HDFS-5125:

Hi [~cnauroth],

  private static final Pattern hasDriveLetterSpecifier =

  private static boolean hasWindowsDrive(String path) {
    return (WINDOWS && hasDriveLetterSpecifier.matcher(path).find());

  public boolean isUriPathAbsolute() {
    int start = hasWindowsDrive(uri.getPath()) ? 3 : 0;
    return uri.getPath().startsWith(SEPARATOR, start);

I suspect Path.isUriPathAbsolute may be flawed:

1. "file:/C:" should be a absolute directory, right? but without ending "/", uri.getPath().startsWith(SEPARATOR,
start) will yield false
2. Another issue is probably not relevant to this bug, but still a problem:
   hasDriveLetterSpecifier allow first "/" to be skiped, but the code "int start = hasWindowsDrive(uri.getPath())
? 3 : 0;" always assume first "/" exists. 

Anyway, I can provide a patch first to try to solve this according my thoughts, but I don't
have a windows environment to test this.

> TestCreateEditsLog#testCanLoadCreatedEditsLog fails on Windows in globStatus
> ----------------------------------------------------------------------------
>                 Key: HDFS-5125
>                 URL: https://issues.apache.org/jira/browse/HDFS-5125
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0, 2.1.1-beta
>            Reporter: Chris Nauroth
> This test calls the {{CreateEditsLog}} tool, then runs {{globStatus}} on the local file
system to find the resulting files before moving them to a directory where a NameNode can
start up and read them.  The HADOOP-9877 patch has caused this test to start failing on Windows
due to internal calls to {{FileContext#getFileLinkStatus}} rejecting the {{Path}} arguments.

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