MAPREUDCE-5294

Signed-off-by: Tsuyoshi Ozawa <ozawa.tsuyoshi@gmail.com>
MAPREDUCE-5295

Signed-off-by: Tsuyoshi Ozawa <ozawa.tsuyoshi@gmail.com>
MAPREDUCE-5221

Signed-off-by: Tsuyoshi Ozawa <ozawa.tsuyoshi@gmail.com>