cms-sw/cmssw — pull request #6478 by bbockelm (2014-11-18 14:58:13+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.

This commit is a cherry-pick of the b19f156f954152ff741226a3c2600fade3e95397 in 7_3_X.