Large number of tables and Hibernate memory consumption

Posted by Vedran on Stack Overflow See other posts from Stack Overflow or by Vedran
Published on 2012-11-26T14:47:48Z Indexed on 2012/11/29 11:05 UTC
Read the original article Hit count: 152

Filed under:

hibernate

|

memory

|

jpa

I'm working on a large ERP project which has database model with about 2100 tables. With "only" 500 tables mapped with Hibernate, application deployed on the web server takes about 3GB of working memory.

Is there any way to reduce Hibernate's metamodel memory footprint when using that many tables in one persistence unit? Or should I just give up on ORMs and go with plain old JDBC (or even jOOQ)?

Right now I'm using Hibernate 4.1.8, Spring 3.1.3, JBoss AS 7.1 and working with MSSQL database.

Edit:

JavaMelody memory histogram output - with 2000 generated test tables that are a bit smaller in scope from the original db model (hence 'only' 1.3GB of spent memory)

© Stack Overflow or respective owner

Related posts about hibernate

Hibernate unable to instantiate default tuplizer - cannot find getter

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to use Hibernate to persist a class that looks like this: public class Item implements Serializable, Comparable<Item> { // Item id private Integer id; // Description of item in inventory private String description; // Number of items described by this inventory item private int… >>> More
Hibernate + PostgreSQL : relation does not exist - SQL Error: 0, SQLState: 42P01

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am having some problems trying to work with PostgreSQL and Hibernate, more specifically, the issue mentioned in the title. I've been searching the net for a few hours now but none of the found solutions worked for me. I am using Eclipse Java EE IDE for Web Developers. Build id: 20090920-1017… >>> More
Problem connecting to Hsqldb via Hibernate when running a Eclipse GWT project.

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to run a simple GWT project where I'm trying to do a simple persitence via hibernate to a HSQLDB database. The database I'm using I have been using for at least 2 years with several osgi applications without any problems. So all I done is reused the same configuration and added a simple… >>> More
Hibernate : load and

as seen on Stack Overflow - Search for 'Stack Overflow'
According to the tutorial : http://jpa.ezhibernate.com/Javacode/learn.jsp?tutorial=27hibernateloadvshibernateget, If you initialize a JavaBean instance with a load method call, you can only access the properties of that JavaBean, for the first time, within the transactional context in which it… >>> More
Hibernate Exception, what wrong ? [[Exception in thread "main" org.hibernate.InvalidMappingException

as seen on Stack Overflow - Search for 'Stack Overflow'
I use netbean 6.7.1 to write "hello world" witch hibernate, but I get some errors, plz help me, thank you very much. my exception init: deps-module-jar: deps-ear-jar: deps-jar: Copying 1 file to F:\Documents and Settings\My Dropbox\DropboxNetBeanProjects\loginspring\build\web\WEB-INF\classes compile-single: run-main: Oct… >>> More

Related posts about memory

SQL Server and Hyper-V Dynamic Memory Part 2

as seen on SQL Blog - Search for 'SQL Blog'
Part 1 of this series was an introduction and overview of Hyper-V Dynamic Memory. This part looks at SQL Server memory management and how the SQL engine responds to changing OS memory conditions. Part 2: SQL Server Memory Management As with any Windows process, sqlserver.exe has a virtual… >>> More
SQL Server and Hyper-V Dynamic Memory - Part 1

as seen on SQL Blog - Search for 'SQL Blog'
SQL and Dynamic Memory Blog Post Series Hyper-V Dynamic Memory is a new feature in Windows Server 2008 R2 SP1 that allows the memory assigned to guest virtual machines to vary according to demand. Using this feature with SQL Server is supported, but how well does it work in… >>> More
SQL Server and Hyper-V Dynamic Memory - Part 1

as seen on SQL Blog - Search for 'SQL Blog'
SQL and Dynamic Memory Blog Post Series Hyper-V Dynamic Memory is a new feature in Windows Server 2008 R2 SP1 that allows the memory assigned to guest virtual machines to vary according to demand. Using this feature with SQL Server is supported, but how well does it work in… >>> More
Python Memory leak - Solved, but still puzzled

as seen on Stack Overflow - Search for 'Stack Overflow'
Dear everyone, I have successfully debugged my own memory leak problems. However, I have noticed some very strange occurence. for fid, fv in freqDic.iteritems(): outf.write(fid+"\t") #ID for i, term in enumerate(domain): #Vector tfidf = self.tf(term… >>> More
SQL Server and Hyper-V Dynamic Memory Part 3

as seen on SQL Blog - Search for 'SQL Blog'
In parts 1 and 2 of this series we looked at the basics of Hyper-V Dynamic Memory and SQL Server memory management. In this part Serdar looks at configuration guidelines for SQL Server memory management. Part 3: Configuration Guidelines for Hyper-V Dynamic Memory and SQL Server Now that… >>> More