CBQE-0: some dgm warmup tests stuck(set eviction_policy=fullEviction)

http://qa.hq.northscale.net/job/centos_x64--00_04--warmup-P0/9/consoleFull

Change-Id: Id2416d2e35c699e6cbcd9486d73bd6f32f8a21bd
Reviewed-on: http://review.couchbase.org/36586
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>