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Performance problem

Hi, we have a strange performance problem with ObjectDB 2.5.3_01 and JBoss 7.1.1. We have two ObjectDB databases on one ObjectDB server. Production database is running 5-10 times slower than test database. Their size and number of records are almost identical. When running production database in separate test environment its speed is very good. We did a performance analysis on our 2 linux servers one running JBOSS and other running ObjectDB. - CPU utilization of JBOSS server is max 5-10% (per core)... edit delete peric.emil ... edit delete support ...

 
issue

Threaded Test - Failed to commit transaction: Unexpected internal exception

Hi I'm trying to create a simple producer-consumer queue scenario but am getting the followin exception: ... edit delete felixobjectdb ... edit delete felixobjectdb ...

 
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How force always recreate database on redeployment.

Is there some easy way to force recreation/deletion of the current database on deployment of a web application (to Glassfish). My web application uses a @Singleton @Startup bean to create and persist a test model each run. I keep getting models on top of each other on rerunning my web application. Currently, to avoid multiple models in the database, I have to undeploy from Glassfish, stop the server, delete the database file, re-start the objectdb server, re-run the web app, which is tedious. ... I have to undeploy from Glassfish, stop the server, delete the database file, re-start the objectdb server, re-run the web app, ... file property I can use to set to force ObjectDB to always delete or empty the database file on startup ? --- Webel ...

 
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What algorithm in find()

I test the time cost for find(), obtain a linear complexity with the following codes: ... edit delete gzdillon ... edit delete support ...

 
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IN expression in a Criteria Query

Hello, I am trying to migrate my Spring project from Hibernate to ObjectDB. On ObjectDB page, it is written that ObjectDB is 100% compatible with JPA. However, I have problem with this JPQL query: SELECT e FROM Employee e WHERE e.present = false AND NOT EXISTS (SELECT c FROM Computer c WHERE c.employeeEntity = e) ORDER BY e.name with Hibernate, there was no problem with this query, but ObjectDB throws exception: ... edit delete mimac ... edit delete support ...

 
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Exception while accessing the Persistence unit ...?

Hi, I am new to ObjectDB I was trying your eclipse/jee6/glassfish tutorial. I am getting the following exception: ... edit delete ceylonsoft ... edit delete support ...

 
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Class loading problem with private packages in OSGi environment

Our Business Objects are the JPA entities. We develop our product domain driven. This means we have several domains. Each domain is split into business layer and persistence layer (others are not relevant here). Per domain and per layer, we have an OSGI bundles. The business layer should have no dependency down (an exception is the dependency to the ObjectDB for the enhanced entities).  The persistence Layers have a dependency to the business layer and to the central DataAccess Layer.... edit delete btc_es ... edit delete support ...

 
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How to resolve 404 errors with Eclipse/Maven Spring MVC

I have created a project as guided by www.objectdb.com/tutorial/jpa/eclipse/spring/run. When I abandon eclipse and use the maven command line to deploy this Spring MVC web app to jetty and point my browser to localhost:8080/Guestbook/ it works as your tutorial says! ... edit delete siegfried ... edit delete support ...

 
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Exception after update of indices of Entity class

Hello, I changed the index definition of an entity class from @Index()... to @Indices() and now I get the following stacktrace upon start: ... edit delete doppelrittberger ... edit delete support ...

 
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find() cost unreasonable time!

Hi, I make a full binary tree of 4095 node, I check the first 9 node, but the root cost 24 seconds, why? Result: ... edit delete gzdillon ... edit delete support ...