We are currently caching all of our hibernate objects and queries using ehcache. We use the Spring OpenSessionInViewFilter to lazily access our objects. The site behaves normally and performs very well under light load, but we experience inconsistant behaviour when we send a lot of requests to application when the cache is empty. Basically many of the initial requests return with data missing . As the cache builds up, the data starts to appear.

I was wondering if anyone else has experienced this same behavior. Is there some kind of synchronization issue I am missing in regards the hibernate cache? Any help would be greatly appreciated. Thanks!

Karl

Thats the nature of the cache and your statement that you cache "all objects" makes me think that you didn't consider the appropriate caching concurrency strategies. This is extremely difficult to resolve in an online discussion, I recommend you get a copy of Hibernate in Action and read the caching chapter. It contains many guidelines what kinds of data should be cached, with what concurrency strategy.

I agree the book helps a lot particulary on that subject