Hi,

I am new to hibernate and am trying to import a big xml file with hierarchical data into classes persisted by hibernate.

During import I need the parent of each node. The time used for session.get(parentid) increases dramatically over time. When I start the import it takes approx. 20ms per node and after having imported 8000 nodes it takes 500 ms and more. Importing 120000 nodes takes forever.

When using a homebrew HashMap that maps the parentid to the node object the time per node is constantly around 10ms!

Aren't oscache/ehcache using HashMaps as well? How come there is that big performance difference that increases over time?

Thanks for help,

Ralf

If you persist the cache on the disk, it may explains.
Try the simple hashmap cache to compare