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From Raghu Angadi <rang...@yahoo-inc.com>
Subject minor change in dataNode handling of multiple directories.
Date Thu, 30 Nov 2006 00:39:41 GMT

As part of the "Version upgrade" related changes, thinking of strictly 
requiring that datanode be able to lock _all_ the configured directories 
instead of any one of them.

Currently if multiple data directories are specified for a datanode, it 
tries to lock a file is in each of the directories. If it fails to lock 
some of the directories, it will use the directories that it could. 
Looks like this flexibility was included mainly for convenience in 
config file.

This might not affect anyone, let us know of your opinions.

Note that all directories have the same storage id. So each individual 
directory is not complete by itself but a part of one storage.


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