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From "Doug Cutting (JIRA)" <>
Subject [jira] Resolved: (NUTCH-116) TestNDFS a JUnit test specifically for NDFS
Date Thu, 01 Dec 2005 20:30:31 GMT
     [ ]
Doug Cutting resolved NUTCH-116:

    Fix Version: 0.8-dev
     Resolution: Fixed

I just committed this.  Thanks, Paul, this is great to have!

> TestNDFS a JUnit test specifically for NDFS
> -------------------------------------------
>          Key: NUTCH-116
>          URL:
>      Project: Nutch
>         Type: Test
>   Components: fetcher, indexer, searcher
>     Versions: 0.8-dev
>     Reporter: Paul Baclace
>      Fix For: 0.8-dev
>  Attachments:,, comments_msgs_and_local_renames_during_TestNDFS.patch,
required_by_TestNDFS.patch, required_by_TestNDFS_v2.patch, required_by_TestNDFS_v3.patch
> TestNDFS is a JUnit test for NDFS using "pseudo multiprocessing" (or more strictly, pseudo
distributed) meaning all daemons run in one process and sockets are used to communicate between
> The test permutes various block sizes, number of files, file sizes, and number of datanodes.
 After creating 1 or more files and filling them with random data, one datanode is shutdown,
and then the files are verfified. Next, all the random test files are deleted and we test
for leakage (non-deletion) by directly checking the real directories corresponding to the
datanodes still running.

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