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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "DFS_requirements" by PaigeLane
Date Thu, 05 May 2011 19:16:53 GMT
Dear Wiki user,

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The "DFS_requirements" page has been changed by PaigeLane.
The comment on this change is: minor edit.


    a. Adding concurrent file append and truncate features will require a block generation
number to be stored as a part of the block file name.
   * Design a '''DFS backup scheme'''. <<BR>> ~-The backup is intended to prevent
from data loss related to file system software bugs, particularly during the system upgrades.-~
<<BR>> ~-The backup might not need to store the entire data set; some applications
require just a fraction of critical data so that the rest can be effectively restored.-~
+ Resources:
+ [[http://netvideoseo.com|Video Optimization]]

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