[gpfsug-discuss] Those users.... millions of files per directory - not necessarily a mistake

[Marc A Kaplan]

Millions of files per directory, may well be a mistake... 

BUT there are some very smart use cases that might take advantage of GPFS 
having good performance with large directories --
because GPFS uses extensible hashing -- it is better to store millions of 
files in a single GPFS directory than artificially scatter them among 
directories based on the mistaken notion that large directories are bad. 
(Yeah, they are in most implementations, but not in GPFS.)


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