cms-sw/cmssw — pull request #5943 by bbockelm (2014-10-22 16:57:36+00:00)
Title: Provide the ability to do a separate cache-hint for cloning.

Cloning is one of the very problematic places for high-latency IO
as it reads baskets one-at-a-time. Hence, it makes a lot of sense
to use lazy-download for this case. *However*, it may not be
desirable to enable lazy-download for all workflows! Nor may it
be desirable for the workflow layers to enable lazy-download for
all merges (as some sites don't have the disk space).

This patch allows us to selectively turn on lazy-download only for
merge jobs at a given site by editing site-local-config.xml.

Per request from Dirk, this pull request is against 7_2_X. It's fairly self-contained and I can back/forward port as necessary.