Hibernate MultipleHiLoPerTableGenerator deadlock and TableGenerator.allocationSize
The other week I had the pleasure of visiting a former client, which had a problem with the connection pool being completely drained for connections, and as a consequence of that, their system pretty much locking up. A dump of the stacks of all threads when the system locked up, told us the culprit was [...]
August 15, 2011
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Tags: hibernate, Java, jpa В· Posted in: Programming
Going from EJB2 to JPA Made Us Discover Bad Data
It is funny, how going from EJB2.x CMP data access code to JPA ORM data access code in one of my projects, made us discover bad data. Over a serious of years, this project has moved through EJB1.x, EJB2.0 and EJB.2.1. Our use of the old EJB standard have made the impact, that the domain [...]
January 10, 2008
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Tags: Java, jpa В· Posted in: Design, Programming