slabtop command (part of the package procps) shows top memory objects used by the kernel.
dstat can help you figure out what is happening. dstat -cdnpmgs --top-bio --top-cpu --top-mem
Also have a look at smem ("smem -kt"), it can show you nicely what is in your swap.
From the community documentation:
hibernate.hbm2ddl.auto Automatically validates or exports schema DDL to the database when the SessionFactory is created. With create-drop, the database schema will be dropped when the SessionFactory is closed explicitly.
e.g. validate | update | create | create-drop
So the list of possible options are,
validate: validate the schema, makes no changes to the database.
update: update the schema.
create: creates the schema, destroying previous data.
create-drop: drop the schema at the end of the session.
K. Tokuda, T. Yoshimura, T. Masuko, T. Kobayashi, and T. Kitamura. Proceedings of the 2000 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 3, page 1315-1318. Istanbul, Turkey, (June 2000)
T. Masuko, T. Kobayashi, M. Tamura, J. Masubuchi, and K. Tokuda. Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 6, page 3745-3748. Seattle, WA, USA, (May 1998)