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In the 4 node, dist mode, num-owners=2, elasticity test
http://www.qa.jboss.com/~mlinhard/hyperion/run44-elas-dist/

there is a cca 90 sec period of time where clients get null responses to GET
requests on entries that should exist in the cache.

first occurence:
hyperion1139.log 05:31:01,202 286.409
last occurence:
hyperion1135.log 05:32:45,441 390.648
total occurence count: (in all 19 driver nodes)
152241
(this doesn't mean it happens for 152K keys, because each key is retried after
erroneous attempt)

data doesn't seem to be lost, because these errors cease after a while and
number of entries returns back to normal (see cache_entries.csv)

this happens approximately in the period between node0001 is killed and cluster

is formed (and shortly after).