now, classifier get a durability for machine failure.
the same mechanism is needed for regression too.
does regression use simple_storage ?
if so, durability is inherited from classifier?
@kumagi As commented in #648 (comment), this issue may be already fixed? If so, please close this issue.
I confirmed that this feature is already implemented for regression too.
When a new server tries to join to the existing cluster, the model is automatically copied from existing server.
2015-06-09 13:03:19,465 17317 INFO [linear_mixer.cpp:395] start to get model from other server
2015-06-09 13:03:19,467 17202 INFO [linear_mixer.cpp:571] sending learning-model. size = 191