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From "nkeywal (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4634) "test.build.data" property overused leading to write data at the wrong place
Date Thu, 20 Oct 2011 20:39:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13132003#comment-13132003
] 

nkeywal commented on HBASE-4634:
--------------------------------

For TestStoreFile, It would need to be applied here, even it's doing more
than just removing the "static dependency on the TestingTool" : it includes
4639.
It will take into account your comments  and publish an updated version.
- with BASE_TEST_DIRECTORY
- private for TEST_DIRECTORY_KEY should to it, I will try.
+ indent stuff

On Thu, Oct 20, 2011 at 10:25 PM, stack (Commented) (JIRA)


                
> "test.build.data" property overused leading to write data at the wrong place
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-4634
>                 URL: https://issues.apache.org/jira/browse/HBASE-4634
>             Project: HBase
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.92.0
>         Environment: all
>            Reporter: nkeywal
>            Assignee: nkeywal
>         Attachments: 2011020_4634_all.patch, 20111020_4639_TestStoreFile.patch
>
>
> "test.build.data" is overloaded in HBase.At the beginning, it's the "Default parent directory
for test output.", but then it's rewritten to be the directory itself in functions like HBaseTestingUtility#startMiniDFSCluster
> It seems that this value is already used by MiniDFS (i.e. outside of HBase): 
> "Name is as it is because mini dfs has hard-codings to put test data here."
> As it is today, there is at least a bug in HBaseTestingUtility:
> {noformat}
>   public void initTestDir() {
>     if (System.getProperty(TEST_DIRECTORY_KEY) == null) {
>       clusterTestBuildDir = setupClusterTestBuildDir();
>       System.setProperty(TEST_DIRECTORY_KEY, clusterTestBuildDir.getPath());
>     }
>   }
> {noformat}
> if you set a value for "test.build.data", the test dir will be the parent directory and
not a temp subdir, leading to issues as multiple tests will end-ups in the same (bad) directory.
This function is barely used today, hence it's not visible, but I would like to use it in
some new code.
> A possible fix is to remove the check for null and continue with the overloading, but
I don't think it would be a big issue to create a new key(like "test.build.data.rootdirectory")
specific to the root directory and to use "test.build.data" only to communicate with MiniDFS.
Feedback welcome.

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