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From Leif Hedstrom <>
Subject Re: selectively clear device disk cache?
Date Wed, 02 May 2012 15:04:49 GMT
On 5/2/12 9:00 AM, John Plevyak wrote:
> Means that you have too few directory entries for that disk.   Odd, unless 
> you are caching very small objects or have set the configuration for 
> average object size too high.
Right, this might be my fault :). They have mostly large files, with 1.7TB 
of disk, and the default of 8KB average size creates way too many directory 
entries (wasting memory, disk I/O and longer startup times). They should 
estimate how many objects they need, salt it appropriately, and tune the 
config accordingly.

-- Leif

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