From: Michael Vrable <mvrable@cs.ucsd.edu>
Date: Sun, 31 May 2009 06:19:10 +0000 (-0700)
Subject: Implement metadata caching for S3 backend.
X-Git-Url: http://git.vrable.net/?a=commitdiff_plain;h=92488d46a0deca6d031d07852c3b79214280ab6d;hp=92488d46a0deca6d031d07852c3b79214280ab6d;p=cumulus.git

Implement metadata caching for S3 backend.

Amazon S3 will return some limited object metadata when a list operation is
performed.  This is significantly cheaper than fetching the information for
objects one at a time.  In the S3 backend, implement a scan() method that
will list all objects and cache the metadata, then return cached results
when stat() is called.
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